Articles | Volume 16, issue 15
https://doi.org/10.5194/bg-16-3047-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-16-3047-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Aug 2019
Research article |
| 09 Aug 2019
| 09 Aug 2019
A novel isotope pool dilution approach to quantify gross rates of key abiotic and biological processes in the soil phosphorus cycle
Wolfgang Wanek
CORRESPONDING AUTHOR
Division of Terrestrial Ecosystem Research, Department of Microbiology and
Ecosystem Science, Center of Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, 1090 Vienna,
Austria
David Zezula
Division of Terrestrial Ecosystem Research, Department of Microbiology and
Ecosystem Science, Center of Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, 1090 Vienna,
Austria
Daniel Wasner
Division of Terrestrial Ecosystem Research, Department of Microbiology and
Ecosystem Science, Center of Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, 1090 Vienna,
Austria
Maria Mooshammer
Division of Terrestrial Ecosystem Research, Department of Microbiology and
Ecosystem Science, Center of Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, 1090 Vienna,
Austria
Judith Prommer
Division of Terrestrial Ecosystem Research, Department of Microbiology and
Ecosystem Science, Center of Microbiology and Environmental Systems Science, University of Vienna, Althanstr. 14, 1090 Vienna,
Austria
Related authors
Lisa Noll, Shasha Zhang, Qing Zheng, Yuntao Hu, Florian Hofhansl, and Wolfgang Wanek
Biogeosciences, 19, 5419–5433, https://doi.org/10.5194/bg-19-5419-2022, https://doi.org/10.5194/bg-19-5419-2022, 2022
Short summary
Short summary
Cleavage of proteins to smaller nitrogen compounds allows microorganisms and plants to exploit the largest nitrogen reservoir in soils and is considered the bottleneck in soil organic nitrogen cycling. Results from soils covering a European transect show that protein turnover is constrained by soil geochemistry, shifts in climate and associated alterations in soil weathering and should be considered as a driver of soil nitrogen availability with repercussions on carbon cycle processes.
Michael Lintner, Bianca Lintner, Wolfgang Wanek, Nina Keul, and Petra Heinz
Biogeosciences, 18, 1395–1406, https://doi.org/10.5194/bg-18-1395-2021, https://doi.org/10.5194/bg-18-1395-2021, 2021
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changes in salinity immediately influence the foraminiferal activity. Also the light regime has a significant impact on carbon or nitrogen processing in foraminifera which contain no kleptoplasts.
Michael Lintner, Bianca Biedrawa, Julia Wukovits, Wolfgang Wanek, and Petra Heinz
Biogeosciences, 17, 3723–3732, https://doi.org/10.5194/bg-17-3723-2020, https://doi.org/10.5194/bg-17-3723-2020, 2020
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changing salinity in the German Wadden Sea immediately influences the foraminiferal community. It seems that A. tepida is better adapted to salinity fluctuations than H. germanica.
Nicolás Valiente, Franz Jirsa, Thomas Hein, Wolfgang Wanek, Patricia Bonin, and Juan José Gómez-Alday
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-20, https://doi.org/10.5194/bg-2020-20, 2020
Preprint withdrawn
Short summary
Short summary
Saline lakes are prone to the accumulation of anthropogenic contaminants, making them highly vulnerable environments to nitrate pollution. We used the revised 15N-isotope pairing technique with sediments from a eutrophic hypersaline lake to unravel the nitrate removal pathways carrying on. Our work shows for the first time the coexistence of denitrification, DNRA and anammox in a highly saline/hypersaline lake, with extraordinarily high rates of coupled DNRA-anammox.
Julia Wukovits, Annekatrin Julie Enge, Wolfgang Wanek, Margarete Watzka, and Petra Heinz
Biogeosciences, 14, 2815–2829, https://doi.org/10.5194/bg-14-2815-2017, https://doi.org/10.5194/bg-14-2815-2017, 2017
Short summary
Short summary
This study reports the response of two intertidal foraminifera to increased temperatures on the level of carbon and nitrogen uptake. Interspecific variations in the ability to cope with shifting environmental variables within the two commonly associated species show that temperature and food source might be critical factors that control their abundances. This should support the interpretation of sediment samples and increase knowledge about nutrient fluxes through foraminiferal communities.
Lisa Noll, Shasha Zhang, Qing Zheng, Yuntao Hu, Florian Hofhansl, and Wolfgang Wanek
Biogeosciences, 19, 5419–5433, https://doi.org/10.5194/bg-19-5419-2022, https://doi.org/10.5194/bg-19-5419-2022, 2022
Short summary
Short summary
Cleavage of proteins to smaller nitrogen compounds allows microorganisms and plants to exploit the largest nitrogen reservoir in soils and is considered the bottleneck in soil organic nitrogen cycling. Results from soils covering a European transect show that protein turnover is constrained by soil geochemistry, shifts in climate and associated alterations in soil weathering and should be considered as a driver of soil nitrogen availability with repercussions on carbon cycle processes.
Moritz Mainka, Laura Summerauer, Daniel Wasner, Gina Garland, Marco Griepentrog, Asmeret Asefaw Berhe, and Sebastian Doetterl
Biogeosciences, 19, 1675–1689, https://doi.org/10.5194/bg-19-1675-2022, https://doi.org/10.5194/bg-19-1675-2022, 2022
Short summary
Short summary
The largest share of terrestrial carbon is stored in soils, making them highly relevant as regards global change. Yet, the mechanisms governing soil carbon stabilization are not well understood. The present study contributes to a better understanding of these processes. We show that qualitative changes in soil organic matter (SOM) co-vary with alterations of the soil matrix following soil weathering. Hence, the type of SOM that is stabilized in soils might change as soils develop.
Michael Lintner, Bianca Lintner, Wolfgang Wanek, Nina Keul, and Petra Heinz
Biogeosciences, 18, 1395–1406, https://doi.org/10.5194/bg-18-1395-2021, https://doi.org/10.5194/bg-18-1395-2021, 2021
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changes in salinity immediately influence the foraminiferal activity. Also the light regime has a significant impact on carbon or nitrogen processing in foraminifera which contain no kleptoplasts.
Michael Lintner, Bianca Biedrawa, Julia Wukovits, Wolfgang Wanek, and Petra Heinz
Biogeosciences, 17, 3723–3732, https://doi.org/10.5194/bg-17-3723-2020, https://doi.org/10.5194/bg-17-3723-2020, 2020
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changing salinity in the German Wadden Sea immediately influences the foraminiferal community. It seems that A. tepida is better adapted to salinity fluctuations than H. germanica.
Nicolás Valiente, Franz Jirsa, Thomas Hein, Wolfgang Wanek, Patricia Bonin, and Juan José Gómez-Alday
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-20, https://doi.org/10.5194/bg-2020-20, 2020
Preprint withdrawn
Short summary
Short summary
Saline lakes are prone to the accumulation of anthropogenic contaminants, making them highly vulnerable environments to nitrate pollution. We used the revised 15N-isotope pairing technique with sediments from a eutrophic hypersaline lake to unravel the nitrate removal pathways carrying on. Our work shows for the first time the coexistence of denitrification, DNRA and anammox in a highly saline/hypersaline lake, with extraordinarily high rates of coupled DNRA-anammox.
Julia Wukovits, Annekatrin Julie Enge, Wolfgang Wanek, Margarete Watzka, and Petra Heinz
Biogeosciences, 14, 2815–2829, https://doi.org/10.5194/bg-14-2815-2017, https://doi.org/10.5194/bg-14-2815-2017, 2017
Short summary
Short summary
This study reports the response of two intertidal foraminifera to increased temperatures on the level of carbon and nitrogen uptake. Interspecific variations in the ability to cope with shifting environmental variables within the two commonly associated species show that temperature and food source might be critical factors that control their abundances. This should support the interpretation of sediment samples and increase knowledge about nutrient fluxes through foraminiferal communities.
Related subject area
Biogeochemistry: Soils
Effect of straw retention and mineral fertilization on P speciation and P-transformation microorganisms in water- extractable colloids of a Vertisol
A new approach to continuous monitoring of carbon use efficiency and biosynthesis in soil microbes from measurement of CO2 and O2
Diverse organic carbon dynamics captured by radiocarbon analysis of distinct compound classes in a grassland soil
The effects of land use on soil carbon stocks in the UK
Technical note: A validated correction method to quantify organic and inorganic carbon in soils using Rock-Eval® thermal analysis
Distinct changes in carbon, nitrogen, and phosphorus cycling in the litter layer across two contrasting forest-tundra ecotones
A microbially-driven and depth-explicit soil organic carbon model constrained by carbon isotopes to reduce equifinality
Earth observation reveals reduced winter wheat growth and the importance of soil water storing capacity during drought
Vegetation patterns associated with nutrient availability and supply in high-elevation tropical Andean ecosystems
Technical note: An open-source, low-cost system for continuous monitoring of low nitrate concentrations in soil and open water
Plutonium concentrations link soil organic matter decline to wind erosion in ploughed soils of South Africa
A Synthesis of Sphagnum Litterbag Experiments: Initial Leaching Losses Bias Decomposition Rate Estimates
Long-term fertilization increases soil but not plant or microbial N in a Chihuahuan Desert grassland
Factors controlling spatiotemporal variability of soil carbon accumulation and stock estimates in a tidal salt marsh
Moisture and temperature effects on the radiocarbon signature of respired carbon dioxide to assess stability of soil carbon in the Tibetan Plateau
Non-mycorrhizal root-associated fungi increase soil C stocks and stability via diverse mechanisms
Nine years of warming and nitrogen addition in the Tibetan grassland promoted loss of soil organic carbon but did not alter the bulk change in chemical structure
Soil priming effects and involved microbial community along salt gradients
Adjustments to the Rock-Eval® thermal analysis for soil organic and inorganic carbon quantification
Ecosystem-specific patterns and drivers of global reactive iron mineral-associated organic carbon
Dark septate endophytic fungi associated with pioneer grass inhabiting volcanic deposits and their functions in promoting plant growth
Global patterns and drivers of phosphorus fractions in natural soils
Reviews and syntheses: Iron – a driver of nitrogen bioavailability in soils?
How well does ramped thermal oxidation quantify the age distribution of soil carbon? Assessing thermal stability of physically and chemically fractionated soil organic matter
Differential temperature sensitivity of intracellular metabolic processes and extracellular soil enzyme activities
Mapping soil organic carbon fractions for Australia, their stocks, and uncertainty
Technical note: The recovery rate of free particulate organic matter from soil samples is strongly affected by the method of density fractionation
Deforestation for agriculture leads to soil warming and enhanced litter decomposition in subarctic soils
Temperature sensitivity of soil organic carbon respiration along a forested elevation gradient in the Rwenzori Mountains, Uganda
The influence of elevated CO2 and soil depth on rhizosphere activity and nutrient availability in a mature Eucalyptus woodland
The paradox of assessing greenhouse gases from soils for nature-based solutions
Management-induced changes in soil organic carbon on global croplands
Pore network modeling as a new tool for determining gas diffusivity in peat
Temperature sensitivity of dark CO2 fixation in temperate forest soils
Effects of precipitation seasonality, irrigation, vegetation cycle and soil type on enhanced weathering – modeling of cropland case studies across four sites
Stable isotope profiles of soil organic carbon in forested and grassland landscapes in the Lake Alaotra basin (Madagascar): insights in past vegetation changes
Reviews and syntheses: The promise of big diverse soil data, moving current practices towards future potential
Dynamics of rare earth elements and associated major and trace elements during Douglas-fir (Pseudotsuga menziesii) and European beech (Fagus sylvatica L.) litter degradation
To what extent can soil moisture and soil Cu contamination stresses affect nitrous species emissions? Estimation through calibration of a nitrification–denitrification model
Carbon, nitrogen, and phosphorus stoichiometry of organic matter in Swedish forest soils and its relationship with climate, tree species, and soil texture
Soil geochemistry as a driver of soil organic matter composition: insights from a soil chronosequence
Leaching of inorganic and organic phosphorus and nitrogen in contrasting beech forest soils – seasonal patterns and effects of fertilization
Age and chemistry of dissolved organic carbon reveal enhanced leaching of ancient labile carbon at the permafrost thaw zone
Soil organic carbon stabilization mechanisms and temperature sensitivity in old terraced soils
Effect of organic carbon addition on paddy soil organic carbon decomposition under different irrigation regimes
Soil profile connectivity can impact microbial substrate use, affecting how soil CO2 effluxes are controlled by temperature
Additional carbon inputs to reach a 4 per 1000 objective in Europe: feasibility and projected impacts of climate change based on Century simulations of long-term arable experiments
Cycling and retention of nitrogen in European beech (Fagus sylvatica L.) ecosystems under elevated fructification frequency
Mercury mobility, colloid formation and methylation in a polluted Fluvisol as affected by manure application and flooding–draining cycle
Simulating measurable ecosystem carbon and nitrogen dynamics with the mechanistically defined MEMS 2.0 model
Shanshan Bai, Yifei Ge, Dongtan Yao, Yifan Wang, Jinfang Tan, Shuai Zhang, Yutao Peng, and Xiaoqian Jiang
Biogeosciences, 22, 135–151, https://doi.org/10.5194/bg-22-135-2025, https://doi.org/10.5194/bg-22-135-2025, 2025
Short summary
Short summary
Mineral fertilization led to increases in total P, available P, high-activity inorganic P fractions, and organic P but reduced the abundance of P-cycling genes by decreasing soil pH and increasing P in bulk soil. Straw retention enhanced organic carbon, total P, and available P concentrations in water-extractable colloids (WECs). Abundances of the phoD gene and phoD-harboring Proteobacteria in WECs were elevated under straw retention, suggesting an increase in P-mineralization capacity.
Kyle E. Smart, Daniel O. Breecker, Christopher B. Blackwood, and Timothy M. Gallagher
Biogeosciences, 22, 87–101, https://doi.org/10.5194/bg-22-87-2025, https://doi.org/10.5194/bg-22-87-2025, 2025
Short summary
Short summary
When microbes consume carbon within soils, it is important to know how much carbon is respired and lost as carbon dioxide versus how much is used to make new biomass. We used a new approach of monitoring carbon dioxide and oxygen to track the fate of consumed carbon during a series of laboratory experiments where sugar was added to moistened soil. Our approach allowed us to estimate how much sugar was converted to dead microbial biomass, which is more likely to be preserved in soils.
Katherine E. Grant, Marisa N. Repasch, Kari M. Finstad, Julia D. Kerr, Maxwell Marple, Christopher J. Larson, Taylor A. B. Broek, Jennifer Pett-Ridge, and Karis J. McFarlane
Biogeosciences, 21, 4395–4411, https://doi.org/10.5194/bg-21-4395-2024, https://doi.org/10.5194/bg-21-4395-2024, 2024
Short summary
Short summary
Soils store organic carbon composed of multiple compounds from plants and microbes for different lengths of time. To understand how soils store these different carbon types, we measure the time each carbon fraction is in a grassland soil profile. Our results show that the length of time each individual soil fraction is in our soil changes. Our approach allows a detailed look at the different components in soils. This study can help improve our understanding of soil dynamics.
Peter Levy, Laura Bentley, Peter Danks, Bridget Emmett, Angus Garbutt, Stephen Heming, Peter Henrys, Aidan Keith, Inma Lebron, Niall McNamara, Richard Pywell, John Redhead, David Robinson, and Alexander Wickenden
Biogeosciences, 21, 4301–4315, https://doi.org/10.5194/bg-21-4301-2024, https://doi.org/10.5194/bg-21-4301-2024, 2024
Short summary
Short summary
We collated a large data set (15 790 soil cores) on soil carbon stock in different land uses. Soil carbon stocks were highest in woodlands and lowest in croplands. The variability in the effects was large. This has important implications for agri-environment schemes seeking to sequester carbon in the soil by altering land use because the effect of a given intervention is very hard to verify.
Marija Stojanova, Pierre Arbelet, François Baudin, Nicolas Bouton, Giovanni Caria, Lorenza Pacini, Nicolas Proix, Edouard Quibel, Achille Thin, and Pierre Barré
Biogeosciences, 21, 4229–4237, https://doi.org/10.5194/bg-21-4229-2024, https://doi.org/10.5194/bg-21-4229-2024, 2024
Short summary
Short summary
Because of its importance for climate regulation and soil health, many studies focus on carbon dynamics in soils. However, quantifying organic and inorganic carbon remains an issue in carbonated soils. In this technical note, we propose a validated correction method to quantify organic and inorganic carbon in soils using Rock-Eval® thermal analysis. With this correction, the Rock-Eval® method has the potential to become the standard method for quantifying carbon in carbonate soils.
Frank Hagedorn, Joesphine Imboden, Pavel Moiseev, Decai Gao, Emmanuel Frossard, Daniel Christen, Konstantin Gavazov, and Jasmin Fetzer
EGUsphere, https://doi.org/10.5194/egusphere-2024-2622, https://doi.org/10.5194/egusphere-2024-2622, 2024
Short summary
Short summary
At treeline, plant species change abruptly from low stature plants in tundra to trees in forests. Our study documents that from tundra towards forest, the litter layer gets strongly enriched in nutrients. We show that these litter quality changes alter nutrient processing by soil microbes and increase the nutrient release during decomposition in forest than in tundra. The associated improvement of nutrient availability in the forest potentially stimulates tree growth and treeline shifts.
Marijn Van de Broek, Gerard Govers, Marion Schrumpf, and Johan Six
EGUsphere, https://doi.org/10.5194/egusphere-2024-2205, https://doi.org/10.5194/egusphere-2024-2205, 2024
Short summary
Short summary
Soil organic carbon models are used to predict how soils affect the concentration of CO2 in the atmosphere. We show that equifinality – the phenomenon that different parameter values lead to correct overall model outputs, albeit with a different model behaviour – is an important source of model uncertainty. Our results imply that adding more complexity to soil organic carbon models is unlikely to lead to better predictions, as long as more data to constrain model parameters are not available.
Hanna Sjulgård, Lukas Valentin Graf, Tino Colombi, Juliane Hirte, Thomas Keller, and Helge Aasen
EGUsphere, https://doi.org/10.5194/egusphere-2024-1872, https://doi.org/10.5194/egusphere-2024-1872, 2024
Short summary
Short summary
Our results showed that crop development derived from satellite images was lower in a dry year compared to a normal year, and faster growth was found more important for higher biomass during drought. The magnitude of the drought impact differed between fields, where higher crop performance was related to more plant available water, suggesting that soil properties play a role in crop response to drought. Our results shows that satellite images can be used to assess plant-soil-weather interactions
Armando Molina, Veerle Vanacker, Oliver Chadwick, Santiago Zhiminaicela, Marife Corre, and Edzo Veldkamp
Biogeosciences, 21, 3075–3091, https://doi.org/10.5194/bg-21-3075-2024, https://doi.org/10.5194/bg-21-3075-2024, 2024
Short summary
Short summary
The tropical Andes contains unique landscapes where forest patches are surrounded by tussock grasses and cushion-forming plants. The aboveground vegetation composition informs us about belowground nutrient availability: patterns in plant-available nutrients resulted from strong biocycling of cations and removal of soil nutrients by plant uptake or leaching. Future changes in vegetation distribution will affect soil water and solute fluxes and the aquatic ecology of Andean rivers and lakes.
Sahiti Bulusu, Cristina Prieto García, Helen E. Dahlke, and Elad Levintal
Biogeosciences, 21, 3007–3013, https://doi.org/10.5194/bg-21-3007-2024, https://doi.org/10.5194/bg-21-3007-2024, 2024
Short summary
Short summary
Do-it-yourself hardware is a new way to improve measurement resolution. We present a low-cost, automated system for field measurements of low nitrate concentrations in soil porewater and open water bodies. All data hardware components cost USD 1100, which is much cheaper than other available commercial solutions. We provide the complete building guide to reduce technical barriers, which we hope will allow easier reproducibility and set up new soil and environmental monitoring applications.
Joel Mohren, Hendrik Wiesel, Wulf Amelung, L. Keith Fifield, Alexandra Sandhage-Hofmann, Erik Strub, Steven A. Binnie, Stefan Heinze, Elmarie Kotze, Chris Du Preez, Stephen G. Tims, and Tibor J. Dunai
EGUsphere, https://doi.org/10.5194/egusphere-2024-1312, https://doi.org/10.5194/egusphere-2024-1312, 2024
Short summary
Short summary
We measured concentrations of fallout radionuclides (FRNs) in soil samples taken from arable land in South Africa. We find that during the second half of the 20th century CE, the FRN data strongly correlate with the soil organic matter (SOM) content of the soils. The finding implies that wind erosion strongly influenced SOM loss in the soils we investigated. Furthermore, the exponential decline of FRN concentrations and SOM content over time peaks shortly after native grassland is cultivated.
Henning Teickner, Edzer Pebesma, and Klaus-Holger Knorr
EGUsphere, https://doi.org/10.5194/egusphere-2024-1686, https://doi.org/10.5194/egusphere-2024-1686, 2024
Short summary
Short summary
Decomposition rates for Sphagnum mosses, the main peat forming plants in northern peatlands, are often derived from litterbag experiments. Here, we estimate initial leaching losses from available Sphagnum litterbag experiments and analyze how decomposition rates are biased when initial leaching losses are ignored. Our analyses indicate that initial leaching losses range between 3 to 18 mass-% and that this may result in overestimated mass losses when extrapolated to several decades.
Violeta Mendoza-Martinez, Scott L. Collins, and Jennie R. McLaren
Biogeosciences, 21, 2655–2667, https://doi.org/10.5194/bg-21-2655-2024, https://doi.org/10.5194/bg-21-2655-2024, 2024
Short summary
Short summary
We examine the impacts of multi-decadal nitrogen additions on a dryland ecosystem N budget, including the soil, microbial, and plant N pools. After 26 years, there appears to be little impact on the soil microbial or plant community and only minimal increases in N pools within the soil. While perhaps encouraging from a conservation standpoint, we calculate that greater than 95 % of the nitrogen added to the system is not retained and is instead either lost deeper in the soil or emitted as gas.
Sean Fettrow, Andrew Wozniak, Holly A. Michael, and Angelia L. Seyfferth
Biogeosciences, 21, 2367–2384, https://doi.org/10.5194/bg-21-2367-2024, https://doi.org/10.5194/bg-21-2367-2024, 2024
Short summary
Short summary
Salt marshes play a big role in global carbon (C) storage, and C stock estimates are used to predict future changes. However, spatial and temporal gradients in C burial rates over the landscape exist due to variations in water inundation, dominant plant species and stage of growth, and tidal action. We quantified soil C concentrations in soil cores across time and space beside several porewater biogeochemical variables and discussed the controls on variability in soil C in salt marsh ecosystems.
Andrés Tangarife-Escobar, Georg Guggenberger, Xiaojuan Feng, Guohua Dai, Carolina Urbina-Malo, Mina Azizi-Rad, and Carlos A. Sierra
Biogeosciences, 21, 1277–1299, https://doi.org/10.5194/bg-21-1277-2024, https://doi.org/10.5194/bg-21-1277-2024, 2024
Short summary
Short summary
Soil organic matter stability depends on future temperature and precipitation scenarios. We used radiocarbon (14C) data and model predictions to understand how the transit time of carbon varies under environmental change in grasslands and peatlands. Soil moisture affected the Δ14C of peatlands, while temperature did not have any influence. Our models show the correspondence between Δ14C and transit time and could allow understanding future interactions between terrestrial and atmospheric carbon
Emiko K. Stuart, Laura Castañeda-Gómez, Wolfram Buss, Jeff R. Powell, and Yolima Carrillo
Biogeosciences, 21, 1037–1059, https://doi.org/10.5194/bg-21-1037-2024, https://doi.org/10.5194/bg-21-1037-2024, 2024
Short summary
Short summary
We inoculated wheat plants with various types of fungi whose impacts on soil carbon are poorly understood. After several months of growth, we examined both their impacts on soil carbon and the underlying mechanisms using multiple methods. Overall the fungi benefitted the storage of carbon in soil, mainly by improving the stability of pre-existing carbon, but several pathways were involved. This study demonstrates their importance for soil carbon storage and, therefore, climate change mitigation.
Huimin Sun, Michael W. I. Schmidt, Jintao Li, Jinquan Li, Xiang Liu, Nicholas O. E. Ofiti, Shurong Zhou, and Ming Nie
Biogeosciences, 21, 575–589, https://doi.org/10.5194/bg-21-575-2024, https://doi.org/10.5194/bg-21-575-2024, 2024
Short summary
Short summary
A soil organic carbon (SOC) molecular structure suggested that the easily decomposable and stabilized SOC is similarly affected after 9-year warming and N treatments despite large changes in SOC stocks. Given the long residence time of some SOC, the similar loss of all measurable chemical forms of SOC under global change treatments could have important climate consequences.
Haoli Zhang, Doudou Chang, Zhifeng Zhu, Chunmei Meng, and Kaiyong Wang
Biogeosciences, 21, 1–11, https://doi.org/10.5194/bg-21-1-2024, https://doi.org/10.5194/bg-21-1-2024, 2024
Short summary
Short summary
Soil salinity mediates microorganisms and soil processes like soil organic carbon (SOC) cycling. We observed that negative priming effects at the early stages might be due to the preferential utilization of cottonseed meal. The positive priming that followed decreased with the increase in salinity.
Joséphine Hazera, David Sebag, Isabelle Kowalewski, Eric Verrecchia, Herman Ravelojaona, and Tiphaine Chevallier
Biogeosciences, 20, 5229–5242, https://doi.org/10.5194/bg-20-5229-2023, https://doi.org/10.5194/bg-20-5229-2023, 2023
Short summary
Short summary
This study adapts the Rock-Eval® protocol to quantify soil organic carbon (SOC) and soil inorganic carbon (SIC) on a non-pretreated soil aliquot. The standard protocol properly estimates SOC contents once the TOC parameter is corrected. However, it cannot complete the thermal breakdown of SIC amounts > 4 mg, leading to an underestimation of high SIC contents by the MinC parameter, even after correcting for this. Thus, the final oxidation isotherm is extended to 7 min to quantify any SIC amount.
Bo Zhao, Amin Dou, Zhiwei Zhang, Zhenyu Chen, Wenbo Sun, Yanli Feng, Xiaojuan Wang, and Qiang Wang
Biogeosciences, 20, 4761–4774, https://doi.org/10.5194/bg-20-4761-2023, https://doi.org/10.5194/bg-20-4761-2023, 2023
Short summary
Short summary
This study provided a comprehensive analysis of the spatial variability and determinants of Fe-bound organic carbon (Fe-OC) among terrestrial, wetland, and marine ecosystems and its governing factors globally. We illustrated that reactive Fe was not only an important sequestration mechanism for OC in terrestrial ecosystems but also an effective “rusty sink” of OC preservation in wetland and marine ecosystems, i.e., a key factor for long-term OC storage in global ecosystems.
Han Sun, Tomoyasu Nishizawa, Hiroyuki Ohta, and Kazuhiko Narisawa
Biogeosciences, 20, 4737–4749, https://doi.org/10.5194/bg-20-4737-2023, https://doi.org/10.5194/bg-20-4737-2023, 2023
Short summary
Short summary
In this research, we assessed the diversity and function of the dark septate endophytic (DSE) fungi community associated with Miscanthus condensatus root in volcanic ecosystems. Both metabarcoding and isolation were adopted in this study. We further validated effects on plant growth by inoculation of some core DSE isolates. This study helps improve our understanding of the role of Miscanthus condensatus-associated DSE fungi during the restoration of post-volcanic ecosystems.
Xianjin He, Laurent Augusto, Daniel S. Goll, Bruno Ringeval, Ying-Ping Wang, Julian Helfenstein, Yuanyuan Huang, and Enqing Hou
Biogeosciences, 20, 4147–4163, https://doi.org/10.5194/bg-20-4147-2023, https://doi.org/10.5194/bg-20-4147-2023, 2023
Short summary
Short summary
We identified total soil P concentration as the most important predictor of all soil P pool concentrations, except for primary mineral P concentration, which is primarily controlled by soil pH and only secondarily by total soil P concentration. We predicted soil P pools’ distributions in natural systems, which can inform assessments of the role of natural P availability for ecosystem productivity, climate change mitigation, and the functioning of the Earth system.
Imane Slimani, Xia Zhu-Barker, Patricia Lazicki, and William Horwath
Biogeosciences, 20, 3873–3894, https://doi.org/10.5194/bg-20-3873-2023, https://doi.org/10.5194/bg-20-3873-2023, 2023
Short summary
Short summary
There is a strong link between nitrogen availability and iron minerals in soils. These minerals have multiple outcomes for nitrogen availability depending on soil conditions and properties. For example, iron can limit microbial degradation of nitrogen in aerated soils but has opposing outcomes in non-aerated soils. This paper focuses on the multiple ways iron can affect nitrogen bioavailability in soils.
Shane W. Stoner, Marion Schrumpf, Alison Hoyt, Carlos A. Sierra, Sebastian Doetterl, Valier Galy, and Susan Trumbore
Biogeosciences, 20, 3151–3163, https://doi.org/10.5194/bg-20-3151-2023, https://doi.org/10.5194/bg-20-3151-2023, 2023
Short summary
Short summary
Soils store more carbon (C) than any other terrestrial C reservoir, but the processes that control how much C stays in soil, and for how long, are very complex. Here, we used a recent method that involves heating soil in the lab to measure the range of C ages in soil. We found that most C in soil is decades to centuries old, while some stays for much shorter times (days to months), and some is thousands of years old. Such detail helps us to estimate how soil C may react to changing climate.
Adetunji Alex Adekanmbi, Laurence Dale, Liz Shaw, and Tom Sizmur
Biogeosciences, 20, 2207–2219, https://doi.org/10.5194/bg-20-2207-2023, https://doi.org/10.5194/bg-20-2207-2023, 2023
Short summary
Short summary
The decomposition of soil organic matter and flux of carbon dioxide are expected to increase as temperatures rise. However, soil organic matter decomposition is a two-step process whereby large molecules are first broken down outside microbial cells and then respired within microbial cells. We show here that these two steps are not equally sensitive to increases in soil temperature and that global warming may cause a shift in the rate-limiting step from outside to inside the microbial cell.
Mercedes Román Dobarco, Alexandre M. J-C. Wadoux, Brendan Malone, Budiman Minasny, Alex B. McBratney, and Ross Searle
Biogeosciences, 20, 1559–1586, https://doi.org/10.5194/bg-20-1559-2023, https://doi.org/10.5194/bg-20-1559-2023, 2023
Short summary
Short summary
Soil organic carbon (SOC) is of a heterogeneous nature and varies in chemistry, stabilisation mechanisms, and persistence in soil. In this study we mapped the stocks of SOC fractions with different characteristics and turnover rates (presumably PyOC >= MAOC > POC) across Australia, combining spectroscopy and digital soil mapping. The SOC stocks (0–30 cm) were estimated as 13 Pg MAOC, 2 Pg POC, and 5 Pg PyOC.
Frederick Büks
Biogeosciences, 20, 1529–1535, https://doi.org/10.5194/bg-20-1529-2023, https://doi.org/10.5194/bg-20-1529-2023, 2023
Short summary
Short summary
Ultrasonication with density fractionation of soils is a commonly used method to separate soil organic matter pools, which is, e.g., important to calculate carbon turnover in landscapes. It is shown that the approach that merges soil and dense solution without mixing has a low recovery rate and causes co-extraction of parts of the retained labile pool along with the intermediate pool. An alternative method with high recovery rates and no cross-contamination was recommended.
Tino Peplau, Christopher Poeplau, Edward Gregorich, and Julia Schroeder
Biogeosciences, 20, 1063–1074, https://doi.org/10.5194/bg-20-1063-2023, https://doi.org/10.5194/bg-20-1063-2023, 2023
Short summary
Short summary
We buried tea bags and temperature loggers in a paired-plot design in soils under forest and agricultural land and retrieved them after 2 years to quantify the effect of land-use change on soil temperature and litter decomposition in subarctic agricultural systems. We could show that agricultural soils were on average 2 °C warmer than forests and that litter decomposition was enhanced. The results imply that deforestation amplifies effects of climate change on soil organic matter dynamics.
Joseph Okello, Marijn Bauters, Hans Verbeeck, Samuel Bodé, John Kasenene, Astrid Françoys, Till Engelhardt, Klaus Butterbach-Bahl, Ralf Kiese, and Pascal Boeckx
Biogeosciences, 20, 719–735, https://doi.org/10.5194/bg-20-719-2023, https://doi.org/10.5194/bg-20-719-2023, 2023
Short summary
Short summary
The increase in global and regional temperatures has the potential to drive accelerated soil organic carbon losses in tropical forests. We simulated climate warming by translocating intact soil cores from higher to lower elevations. The results revealed increasing temperature sensitivity and decreasing losses of soil organic carbon with increasing elevation. Our results suggest that climate warming may trigger enhanced losses of soil organic carbon from tropical montane forests.
Johanna Pihlblad, Louise C. Andresen, Catriona A. Macdonald, David S. Ellsworth, and Yolima Carrillo
Biogeosciences, 20, 505–521, https://doi.org/10.5194/bg-20-505-2023, https://doi.org/10.5194/bg-20-505-2023, 2023
Short summary
Short summary
Elevated CO2 in the atmosphere increases forest biomass productivity when growth is not limited by soil nutrients. This study explores how mature trees stimulate soil availability of nitrogen and phosphorus with free-air carbon dioxide enrichment after 5 years of fumigation. We found that both nutrient availability and processes feeding available pools increased in the rhizosphere, and phosphorus increased at depth. This appears to not be by decomposition but by faster recycling of nutrients.
Rodrigo Vargas and Van Huong Le
Biogeosciences, 20, 15–26, https://doi.org/10.5194/bg-20-15-2023, https://doi.org/10.5194/bg-20-15-2023, 2023
Short summary
Short summary
Quantifying the role of soils in nature-based solutions requires accurate estimates of soil greenhouse gas (GHG) fluxes. We suggest that multiple GHG fluxes should not be simultaneously measured at a few fixed time intervals, but an optimized sampling approach can reduce bias and uncertainty. Our results have implications for assessing GHG fluxes from soils and a better understanding of the role of soils in nature-based solutions.
Kristine Karstens, Benjamin Leon Bodirsky, Jan Philipp Dietrich, Marta Dondini, Jens Heinke, Matthias Kuhnert, Christoph Müller, Susanne Rolinski, Pete Smith, Isabelle Weindl, Hermann Lotze-Campen, and Alexander Popp
Biogeosciences, 19, 5125–5149, https://doi.org/10.5194/bg-19-5125-2022, https://doi.org/10.5194/bg-19-5125-2022, 2022
Short summary
Short summary
Soil organic carbon (SOC) has been depleted by anthropogenic land cover change and agricultural management. While SOC models often simulate detailed biochemical processes, the management decisions are still little investigated at the global scale. We estimate that soils have lost around 26 GtC relative to a counterfactual natural state in 1975. Yet, since 1975, SOC has been increasing again by 4 GtC due to a higher productivity, recycling of crop residues and manure, and no-tillage practices.
Petri Kiuru, Marjo Palviainen, Arianna Marchionne, Tiia Grönholm, Maarit Raivonen, Lukas Kohl, and Annamari Laurén
Biogeosciences, 19, 5041–5058, https://doi.org/10.5194/bg-19-5041-2022, https://doi.org/10.5194/bg-19-5041-2022, 2022
Short summary
Short summary
Peatlands are large carbon stocks. Emissions of carbon dioxide and methane from peatlands may increase due to changes in management and climate. We studied the variation in the gas diffusivity of peat with depth using pore network simulations and laboratory experiments. Gas diffusivity was found to be lower in deeper peat with smaller pores and lower pore connectivity. However, gas diffusivity was not extremely low in wet conditions, which may reflect the distinctive structure of peat.
Rachael Akinyede, Martin Taubert, Marion Schrumpf, Susan Trumbore, and Kirsten Küsel
Biogeosciences, 19, 4011–4028, https://doi.org/10.5194/bg-19-4011-2022, https://doi.org/10.5194/bg-19-4011-2022, 2022
Short summary
Short summary
Soils will likely become warmer in the future, and this can increase the release of carbon dioxide (CO2) into the atmosphere. As microbes can take up soil CO2 and prevent further escape into the atmosphere, this study compares the rate of uptake and release of CO2 at two different temperatures. With warming, the rate of CO2 uptake increases less than the rate of release, indicating that the capacity to modulate soil CO2 release into the atmosphere will decrease under future warming.
Giuseppe Cipolla, Salvatore Calabrese, Amilcare Porporato, and Leonardo V. Noto
Biogeosciences, 19, 3877–3896, https://doi.org/10.5194/bg-19-3877-2022, https://doi.org/10.5194/bg-19-3877-2022, 2022
Short summary
Short summary
Enhanced weathering (EW) is a promising strategy for carbon sequestration. Since models may help to characterize field EW, the present work applies a hydro-biogeochemical model to four case studies characterized by different rainfall seasonality, vegetation and soil type. Rainfall seasonality strongly affects EW dynamics, but low carbon sequestration suggests that an in-depth analysis at the global scale is required to see if EW may be effective to mitigate climate change.
Vao Fenotiana Razanamahandry, Marjolein Dewaele, Gerard Govers, Liesa Brosens, Benjamin Campforts, Liesbet Jacobs, Tantely Razafimbelo, Tovonarivo Rafolisy, and Steven Bouillon
Biogeosciences, 19, 3825–3841, https://doi.org/10.5194/bg-19-3825-2022, https://doi.org/10.5194/bg-19-3825-2022, 2022
Short summary
Short summary
In order to shed light on possible past vegetation shifts in the Central Highlands of Madagascar, we measured stable isotope ratios of organic carbon in soil profiles along both forested and grassland hillslope transects in the Lake Alaotra region. Our results show that the landscape of this region was more forested in the past: soils in the C4-dominated grasslands contained a substantial fraction of C3-derived carbon, increasing with depth.
Katherine E. O. Todd-Brown, Rose Z. Abramoff, Jeffrey Beem-Miller, Hava K. Blair, Stevan Earl, Kristen J. Frederick, Daniel R. Fuka, Mario Guevara Santamaria, Jennifer W. Harden, Katherine Heckman, Lillian J. Heran, James R. Holmquist, Alison M. Hoyt, David H. Klinges, David S. LeBauer, Avni Malhotra, Shelby C. McClelland, Lucas E. Nave, Katherine S. Rocci, Sean M. Schaeffer, Shane Stoner, Natasja van Gestel, Sophie F. von Fromm, and Marisa L. Younger
Biogeosciences, 19, 3505–3522, https://doi.org/10.5194/bg-19-3505-2022, https://doi.org/10.5194/bg-19-3505-2022, 2022
Short summary
Short summary
Research data are becoming increasingly available online with tantalizing possibilities for reanalysis. However harmonizing data from different sources remains challenging. Using the soils community as an example, we walked through the various strategies that researchers currently use to integrate datasets for reanalysis. We find that manual data transcription is still extremely common and that there is a critical need for community-supported informatics tools like vocabularies and ontologies.
Alessandro Montemagno, Christophe Hissler, Victor Bense, Adriaan J. Teuling, Johanna Ziebel, and Laurent Pfister
Biogeosciences, 19, 3111–3129, https://doi.org/10.5194/bg-19-3111-2022, https://doi.org/10.5194/bg-19-3111-2022, 2022
Short summary
Short summary
We investigated the biogeochemical processes that dominate the release and retention of elements (nutrients and potentially toxic elements) during litter degradation. Our results show that toxic elements are retained in the litter, while nutrients are released in solution during the first stages of degradation. This seems linked to the capability of trees to distribute the elements between degradation-resistant and non-degradation-resistant compounds of leaves according to their chemical nature.
Laura Sereni, Bertrand Guenet, Charlotte Blasi, Olivier Crouzet, Jean-Christophe Lata, and Isabelle Lamy
Biogeosciences, 19, 2953–2968, https://doi.org/10.5194/bg-19-2953-2022, https://doi.org/10.5194/bg-19-2953-2022, 2022
Short summary
Short summary
This study focused on the modellisation of two important drivers of soil greenhouse gas emissions: soil contamination and soil moisture change. The aim was to include a Cu function in the soil biogeochemical model DNDC for different soil moisture conditions and then to estimate variation in N2O, NO2 or NOx emissions. Our results show a larger effect of Cu on N2 and N2O emissions than on the other nitrogen species and a higher effect for the soils incubated under constant constant moisture.
Marie Spohn and Johan Stendahl
Biogeosciences, 19, 2171–2186, https://doi.org/10.5194/bg-19-2171-2022, https://doi.org/10.5194/bg-19-2171-2022, 2022
Short summary
Short summary
We explored the ratios of carbon (C), nitrogen (N), and phosphorus (P) of organic matter in Swedish forest soils. The N : P ratio of the organic layer was most strongly related to the mean annual temperature, while the C : N ratios of the organic layer and mineral soil were strongly related to tree species even in the subsoil. The organic P concentration in the mineral soil was strongly affected by soil texture, which diminished the effect of tree species on the C to organic P (C : OP) ratio.
Moritz Mainka, Laura Summerauer, Daniel Wasner, Gina Garland, Marco Griepentrog, Asmeret Asefaw Berhe, and Sebastian Doetterl
Biogeosciences, 19, 1675–1689, https://doi.org/10.5194/bg-19-1675-2022, https://doi.org/10.5194/bg-19-1675-2022, 2022
Short summary
Short summary
The largest share of terrestrial carbon is stored in soils, making them highly relevant as regards global change. Yet, the mechanisms governing soil carbon stabilization are not well understood. The present study contributes to a better understanding of these processes. We show that qualitative changes in soil organic matter (SOM) co-vary with alterations of the soil matrix following soil weathering. Hence, the type of SOM that is stabilized in soils might change as soils develop.
Jasmin Fetzer, Emmanuel Frossard, Klaus Kaiser, and Frank Hagedorn
Biogeosciences, 19, 1527–1546, https://doi.org/10.5194/bg-19-1527-2022, https://doi.org/10.5194/bg-19-1527-2022, 2022
Short summary
Short summary
As leaching is a major pathway of nitrogen and phosphorus loss in forest soils, we investigated several potential drivers in two contrasting beech forests. The composition of leachates, obtained by zero-tension lysimeters, varied by season, and climatic extremes influenced the magnitude of leaching. Effects of nitrogen and phosphorus fertilization varied with soil nutrient status and sorption properties, and leaching from the low-nutrient soil was more sensitive to environmental factors.
Karis J. McFarlane, Heather M. Throckmorton, Jeffrey M. Heikoop, Brent D. Newman, Alexandra L. Hedgpeth, Marisa N. Repasch, Thomas P. Guilderson, and Cathy J. Wilson
Biogeosciences, 19, 1211–1223, https://doi.org/10.5194/bg-19-1211-2022, https://doi.org/10.5194/bg-19-1211-2022, 2022
Short summary
Short summary
Planetary warming is increasing seasonal thaw of permafrost, making this extensive old carbon stock vulnerable. In northern Alaska, we found more and older dissolved organic carbon in small drainages later in summer as more permafrost was exposed by deepening thaw. Younger and older carbon did not differ in chemical indicators related to biological lability suggesting this carbon can cycle through aquatic systems and contribute to greenhouse gas emissions as warming increases permafrost thaw.
Pengzhi Zhao, Daniel Joseph Fallu, Sara Cucchiaro, Paolo Tarolli, Clive Waddington, David Cockcroft, Lisa Snape, Andreas Lang, Sebastian Doetterl, Antony G. Brown, and Kristof Van Oost
Biogeosciences, 18, 6301–6312, https://doi.org/10.5194/bg-18-6301-2021, https://doi.org/10.5194/bg-18-6301-2021, 2021
Short summary
Short summary
We investigate the factors controlling the soil organic carbon (SOC) stability and temperature sensitivity of abandoned prehistoric agricultural terrace soils. Results suggest that the burial of former topsoil due to terracing provided an SOC stabilization mechanism. Both the soil C : N ratio and SOC mineral protection regulate soil SOC temperature sensitivity. However, which mechanism predominantly controls SOC temperature sensitivity depends on the age of the buried terrace soils.
Heleen Deroo, Masuda Akter, Samuel Bodé, Orly Mendoza, Haichao Li, Pascal Boeckx, and Steven Sleutel
Biogeosciences, 18, 5035–5051, https://doi.org/10.5194/bg-18-5035-2021, https://doi.org/10.5194/bg-18-5035-2021, 2021
Short summary
Short summary
We assessed if and how incorporation of exogenous organic carbon (OC) such as straw could affect decomposition of native soil organic carbon (SOC) under different irrigation regimes. Addition of exogenous OC promoted dissolution of native SOC, partly because of increased Fe reduction, leading to more net release of Fe-bound SOC. Yet, there was no proportionate priming of SOC-derived DOC mineralisation. Water-saving irrigation can retard both priming of SOC dissolution and mineralisation.
Frances A. Podrebarac, Sharon A. Billings, Kate A. Edwards, Jérôme Laganière, Matthew J. Norwood, and Susan E. Ziegler
Biogeosciences, 18, 4755–4772, https://doi.org/10.5194/bg-18-4755-2021, https://doi.org/10.5194/bg-18-4755-2021, 2021
Short summary
Short summary
Soil respiration is a large and temperature-responsive flux in the global carbon cycle. We found increases in microbial use of easy to degrade substrates enhanced the temperature response of respiration in soils layered as they are in situ. This enhanced response is consistent with soil composition differences in warm relative to cold climate forests. These results highlight the importance of the intact nature of soils rarely studied in regulating responses of CO2 fluxes to changing temperature.
Elisa Bruni, Bertrand Guenet, Yuanyuan Huang, Hugues Clivot, Iñigo Virto, Roberta Farina, Thomas Kätterer, Philippe Ciais, Manuel Martin, and Claire Chenu
Biogeosciences, 18, 3981–4004, https://doi.org/10.5194/bg-18-3981-2021, https://doi.org/10.5194/bg-18-3981-2021, 2021
Short summary
Short summary
Increasing soil organic carbon (SOC) stocks is beneficial for climate change mitigation and food security. One way to enhance SOC stocks is to increase carbon input to the soil. We estimate the amount of carbon input required to reach a 4 % annual increase in SOC stocks in 14 long-term agricultural experiments around Europe. We found that annual carbon input should increase by 43 % under current temperature conditions, by 54 % for a 1 °C warming scenario and by 120 % for a 5 °C warming scenario.
Rainer Brumme, Bernd Ahrends, Joachim Block, Christoph Schulz, Henning Meesenburg, Uwe Klinck, Markus Wagner, and Partap K. Khanna
Biogeosciences, 18, 3763–3779, https://doi.org/10.5194/bg-18-3763-2021, https://doi.org/10.5194/bg-18-3763-2021, 2021
Short summary
Short summary
In order to study the fate of litter nitrogen in forest soils, we combined a leaf litterfall exchange experiment using 15N-labeled leaf litter with long-term element budgets at seven European beech sites in Germany. It appears that fructification intensity, which has increased in recent decades, has a distinct impact on N retention in forest soils. Despite reduced nitrogen deposition, about 6 and 10 kg ha−1 of nitrogen were retained annually in the soils and in the forest stands, respectively.
Lorenz Gfeller, Andrea Weber, Isabelle Worms, Vera I. Slaveykova, and Adrien Mestrot
Biogeosciences, 18, 3445–3465, https://doi.org/10.5194/bg-18-3445-2021, https://doi.org/10.5194/bg-18-3445-2021, 2021
Short summary
Short summary
Our incubation experiment shows that flooding of polluted floodplain soils may induce pulses of both mercury (Hg) and methylmercury to the soil solution and threaten downstream ecosystems. We demonstrate that mobilization of Hg bound to manganese oxides is a relevant process in organic-matter-poor soils. Addition of organic amendments accelerates this mobilization but also facilitates the formation of nanoparticulate Hg and the subsequent fixation of Hg from soil solution to the soil.
Yao Zhang, Jocelyn M. Lavallee, Andy D. Robertson, Rebecca Even, Stephen M. Ogle, Keith Paustian, and M. Francesca Cotrufo
Biogeosciences, 18, 3147–3171, https://doi.org/10.5194/bg-18-3147-2021, https://doi.org/10.5194/bg-18-3147-2021, 2021
Short summary
Short summary
Soil organic matter (SOM) is essential for the health of soils, and the accumulation of SOM helps removal of CO2 from the atmosphere. Here we present the result of the continued development of a mathematical model that simulates SOM and its measurable fractions. In this study, we simulated several grassland sites in the US, and the model generally captured the carbon and nitrogen amounts in SOM and their distribution between the measurable fractions throughout the entire soil profile.
Cited articles
Achat, D. L., Bakker, M. R., Saur, E., Pellerin, S., Augusto, L., and Morel,
C.: Quantifying gross mineralisation of P in dead soil organic matter:
Testing an isotopic dilution method, Geoderma, 158, 163–172, https://doi.org/10.1016/j.geoderma.2010.04.027, 2010.
Achat, D. L., Augusto, L., Morel, C., and Bakker, M. R.: Predicting available
phosphate ions from physical-chemical soil properties in acidic sandy soils
under pine forests, J. Soils Sediments, 11, 452–466, https://doi.org/10.1007/s11368-010-0329-9, 2011.
Achat, D. L., Augusto, L., Bakker, M. R., Gallet-Budynek, A., and Morel, C.:
Microbial processes controlling P availability in forest spodosols as
affected by soil depth and soil properties, Soil Biol. Biochem., 44, 39–48, https://doi.org/10.1016/j.soilbio.2011.09.007, 2012.
Achat, D. L., Bakker, M. R., Augusto, L., and Morel, C.: Contributions of
microbial and physical-chemical processes to phosphorus availability in
Podzols and Arenosols under a temperate forest, Geoderma, 211, 18–27, https://doi.org/10.1016/j.geoderma.2013.07.003, 2013.
Achat, D. L., Pousse, N., Nicolas, M., Bredoire, F., and Augusto, L.: Soil
properties controlling inorganic phosphorus availability: general results
from a national forest network and a global compilation of the literature,
Biogeochemistry, 127, 255–272, https://doi.org/10.1007/s10533-015-0178-0, 2016.
Alphei, J. and Scheu, S.: Effects of biocidal treatments on biological and
nutritional properties of a mull-structured woodland soil, Geoderma, 56,
435–448, https://doi.org/10.1016/0016-7061(93)90125-5, 1993.
Anderson, B. H. and Magdoff, F. R.: Autoclaving soil samples affects
algal-available phosphorus, J. Environ. Qual., 34, 1958–1963, https://doi.org/10.2134/jeq2005.0024, 2005.
Berns, A. E., Philipp, H., Narres, H. D., Burauel, P., Vereecken, H., and
Tappe, W.: Effect of gamma-sterilization and autoclaving on soil organic
matter structure as studied by solid state NMR, UV and fluorescence
spectroscopy, Eur. J. Soil Sci., 59, 540–550, https://doi.org/10.1111/j.1365-2389.2008.01016.x, 2008.
Blankinship, J. C., Becerra, C. A., Schaeffer, S. M., and Schimel, J. P.:
Separating cellular metabolism from exoenzyme activity in soil organic matter
decomposition, Soil Biol. Biochem., 71, 68–75, https://doi.org/10.1016/j.soilbio.2014.01.010,
2014.
Booth, M. S., Stark, J. M., and Rastetter, E.: Controls on nitrogen cycling
in terrestrial ecosystems: A synthetic analysis of literature data,
Ecol. Monogr., 75, 139–157, 2005.
Braun, J., Mooshammer, M., Wanek, W., Prommer, J., Walker, T. W. N., Rutting,
T., and Richter, A.: Full N-15 tracer accounting to revisit major assumptions
of N-15 isotope pool dilution approaches for gross nitrogen mineralization,
Soil Biol. Biochem., 117, 16–26, https://doi.org/10.1016/j.soilbio.2017.11.005, 2018.
Bühler, S., Oberson, A., Sinaj, S., Friesen, D. K., and Frossard, E.:
Isotope methods for assessing plant available phosphorus in acid tropical
soils, Eur. J. Soil Sci., 54, 605–616, https://doi.org/10.1046/j.1365-2389.2003.00542.x,
2003.
Bünemann, E. K., Marschner, P., McNeill, A. M., and McLaughlin, M. J.:
Measuring rates of gross and net mineralisation of organic phosphorus in
soils, Soil Biol. Biochem., 39, 900–913, https://doi.org/10.1016/j.soilbio.2006.10.009, 2007.
Bünemann, E. K., Oberson, A., Liebisch, F., Keller, F., Annaheim, K. E.,
Huguenin-Elie, O., and Frossard, E.: Rapid microbial phosphorus
immobilization dominates gross phosphorus fluxes in a grassland soil with low
inorganic phosphorus availability, Soil Biol. Biochem., 51, 84–95, https://doi.org/10.1016/j.soilbio.2012.04.012, 2012.
Bünemann, E. K.: Assessment of gross and net mineralization rates of soil
organic phosphorus – A review, Soil Biol. Biochem., 89, 82–98, https://doi.org/10.1016/j.soilbio.2015.06.026, 2015.
Bünemann, E. K., Augstburger, S., and Frossard, E.: Dominance of either
physicochemical or biological phosphorus cycling processes in temperate
forest soils of contrasting phosphate availability, Soil Biol. Biochem., 101,
85–95, https://doi.org/10.1016/j.soilbio.2016.07.005, 2016.
Carter, D. O., Yellowlees, D., and Tibbett, M.: Autoclaving kills soil
microbes yet soil enzymes remain active, Pedobiologia, 51, 295–299, https://doi.org/10.1016/j.pedobi.2007.05.002, 2007.
Condron, L. M., Moir, J. O., Tiessen, H., and Stewart, J. W. B.:
Critical-Evaluation Of Methods For Determining Total Organic Phosphorus In
Tropical Soils, Soil Sci. Soc. Am. J., 54, 1261–1266, https://doi.org/10.2136/sssaj1990.03615995005400050010x, 1990.
D'Angelo, E., Crutchfield, J., and Vandiviere, M.: Rapid, sensitive,
microscale determination of phosphate in water and soil, J. Environ. Qual.,
30, 2206–2209, 2001.
Demaria, P., Flisch, R., Frossard, E., and Sinaj, S.: Exchangeability of
phosphate extracted by four chemical methods, J. Plant Nutr. Soil Sc., 168, 89–93, https://doi.org/10.1002/jpin.200421463, 2005.
Di, H. J., Condron, L. M., and Frossard, E.: Isotope techniques to study
phosphorus cycling in agricultural and forest soils: A review, Biol. Fertil.
Soils, 24, 1–12, https://doi.org/10.1007/bf01420213, 1997.
Di, H. J., Cameron, K. C., and McLaren, R. G.: Isotopic dilution methods to
determine the gross transformation rates of nitrogen, phosphorus, and sulfur
in soil: a review of the theory, methodologies, and limitations, Aust. J.
Soil Res., 38, 213–230, 2000.
Fardeau, J. C., Morel, C., and Boniface, R.: Why the Olsen method should be
used to estimate available soil phosphorus?, Agronomie, 8, 577–584, https://doi.org/10.1051/agro:19880702, 1988.
Fardeau, J. C., Morel, C., and Boniface, R.: Phosphate Ion Transfer From Soil
To Soil Solution – Kinetic-Parameters, Agronomie, 11, 787–797, https://doi.org/10.1051/agro:19910909, 1991.
Fardeau, J. C.: Le phosphore assimilable des sols : sa représentation par
un modèle fonctionnel à plusieurs compartiments Agronomie, 13,
317–331, 1993.
Fontaine, S., Henault, C., Aamor, A., Bdioui, N., Bloor, J. M. G., Maire, V.,
Mary, B., Revaillot, S., and Maron, P. A.: Fungi mediate long term
sequestration of carbon and nitrogen in soil through their priming effect,
Soil Biol. Biochem., 43, 86–96, https://doi.org/10.1016/j.soilbio.2010.09.017,
2011.
Frossard, E., Fardeau, J. C., Brossard, M., and Morel, J. L.: Soil
isotopically exchangeable phosphorus – a comparison between E and L-values,
Soil Sci. Soc. Am. J., 58, 846–851, 1994.
Frossard, E., Achat, D. L., Bernasconi, S. M., Bünemann, E. K., Fardeau,
J. C., Jansa, J., Morel, C., Rabeharisoa, L., Randriamanantsoa, L., Sinaj,
S., Tamburini, F., and Oberson, A.: The Use of Tracers to Investigate
Phosphate Cycling in Soil-Plant Systems, in: Phosphorus in Action: Biological
Processes in Soil Phosphorus Cycling, edited by: Bunemann, E. K., Oberson,
A., and Frossard, E., Soil Biology, 59–91, 2011.
Goldberg, S. and Sposito, G.: On the mechanism of specific
phosphate-adsorption by hydroxylated mineral surfaces – a review, Commun.
Soil Sci. Plant Anal., 16, 801–821, https://doi.org/10.1080/00103628509367646, 1985.
Green, V. S., Stott, D. E., and Diack, M.: Assay for fluorescein diacetate
hydrolytic activity: Optimization for soil samples, Soil Biol. Biochem., 38,
693–701, https://doi.org/10.1016/j.soilbio.2005.06.020, 2006.
Hart, S. C., Nason, G. E., Myrold, D. D., and Perry, D. A.: Dynamics of gross
nitrogen transformations in an old-growth forest: the carbon connection,
Ecology, 75, 880–891, 1994.
Hinsinger, P.: Bioavailability of soil inorganic P in the rhizosphere as
affected by root-induced chemical changes: a review, Plant Soil, 237,
173–195, https://doi.org/10.1023/a:1013351617532, 2001.
Horta, M. D. and Torrent, J.: The Olsen P method as an agronomic and
environmental test for predicting phosphate release from acid soils, Nutr. Cycl. Agroecosys., 77, 283–292, https://doi.org/10.1007/s10705-006-9066-2, 2007.
Hu, Y. T., Zheng, Q., and Wanek, W.: Flux Analysis of Free Amino Sugars and
Amino Acids in Soils by Isotope Tracing with a Novel Liquid
Chromatography/High Resolution Mass Spectrometry Platform, Anal.
Chem., 89, 9192–9200, https://doi.org/10.1021/acs.analchem.7b01938, 2017.
Jayachandran, K., Schwab, A. P., and Hetrick, B. A. D.: Partitioning
dissolved inorganic and organic phosphorus using acidified molybdate and
isobutanol, Soil Sci. Soc. Am. J., 56, 762–765, 1992.
Kedi, B., Sei, J., Quiquampoix, H., and Staunton, S.: Persistence of
catalytic activity of fungal phosphatases incubated in tropical soils, Soil
Biol. Biochem., 56, 69–74, https://doi.org/10.1016/j.soilbio.2012.02.005, 2013.
Kellogg, L. E., Bridgham, S. D., and Lopez-Hernandez, D.: A comparison of
four methods of measuring gross phosphorus mineralization, Soil Sci. Soc. Am.
J., 70, 1349–1358, https://doi.org/10.2135/sssaj2005.0300, 2006.
Kirkham, D. and Bartholomew, W. V.: Equations for following nutrient
transformations in soil, utilizing tracer data, Soil Sci. Soc. Am. Pro., 18, 33–34, 1954.
Kleinman, P. J. A., Sharpley, A. N., Gartley, K., Jarrell, W. M., Kuo, S.,
Menon, R. G., Myers, R., Reddy, K. R., and Skogley, E. O.: Interlaboratory
comparison of soil phosphorus extracted by various soil test methods,
Commun. Soil Sci. Plan, 32, 2325–2345, https://doi.org/10.1081/css-120000376, 2001.
Lopez-Hernandez, D., Brossard, M., and Frossard, E.: P-isotopic exchange
values in relation to Po mineralisation in soils with very low P-sorbing
capacities, Soil Biol. Biochem., 30, 1663–1670, https://doi.org/10.1016/s0038-0717(97)00255-1, 1998.
Lotrario, J. B., Stuart, B. J., Lam, T., Arands, R. R., Oconnor, O. A., and
Kosson, D. S.: Effects Of Sterilization Methods On The Physical
Characteristics Of Soil – Implications For Sorption Isotherm Analyses, B. Environ. Contam. Tox., 54, 668–675, 1995.
Mander, C., Wakelin, S., Young, S., Condron, L., and O'Callaghan, M.:
Incidence and diversity of phosphate-solubilising bacteria are linked to
phosphorus status in grassland soils, Soil Biol. Biochem., 44, 93–101, https://doi.org/10.1016/j.soilbio.2011.09.009, 2012.
Marx, M. C., Wood, M., and Jarvis, S. C.: A microplate fluorimetric assay for
the study of enzyme diversity in soils, Soil Biol. Biochem., 33, 1633–1640,
2001.
Messiga, A. J., Ba, Y. X., Ziadi, N., Belanger, G., and Lafond, J.: Assessing
the depletion of soil P following sequential extractions with Mehlich-3 and
Olsen solutions, Arch. Agron. Soil Sci., 60, 1445–1458, https://doi.org/10.1080/03650340.2014.884709, 2014.
Miller, W. and Miller, D.: A micropipette method for soil mechanical
analysis, Commun. Soil Sci. Plan, 18, 1–15, 1987.
Mooshammer, M., Wanek, W., Schnecker, J., Wild, B., Leitner, S., Hofhansl,
F., Blochl, A., Hammerle, I., Frank, A. H., Fuchslueger, L., Keiblinger, K.
M., Zechmeister-Boltenstern, S., and Richter, A.: Stoichiometric controls of
nitrogen and phosphorus cycling in decomposing beech leaf litter, Ecology,
93, 770–782, 2012.
Mooshammer, M., Hofhansl, F., Frank, A. H., Wanek, W., Hammerle, I., Leitner,
S., Schnecker, J., Wild, B., Watzka, M., Keiblinger, K. M.,
Zechmeister-Boltenstern, S., and Richter, A.: Decoupling of microbial carbon,
nitrogen, and phosphorus cycling in response to extreme temperature events,
Sci. Adv., 3, e1602781, https://doi.org/10.1126/sciadv.1602781, 2017.
Müller, C. and Bünemann, E. K.: A P-33 tracing model for quantifying
gross P transformation rates in soil, Soil Biol. Biochem., 76, 218–226, https://doi.org/10.1016/j.soilbio.2014.05.013, 2014.
Murphy, D. V., Recous, S., Stockdale, E. A., Fillery, I. R. P., Jensen, L.
S., Hatch, D. J., and Goulding, K. W. T.: Gross nitrogen fluxes in soil:
Theory, measurement and application of 15N pool dilution techniques, Adv. Agron., 79, 69–118, 2003.
Murphy, J. and Riley, J. P.: A modified single solution method for
determination of phosphate in natural waters, Anal. Chim. Acta, 26,
31–36, 1962.
O'Halloran, I. P., and Cade-Menun, B. J.: Total
and Organic Phosphorus, chap. 24, in: Soil Sampling and Methods of Analysis, 2nd edn., edited by: Carter, M. R. and Gregorich, E. G., CRC Press, Taylor
& Francis, Boca Raton, FL, USA, 265–291, 2008.
Oberson, A., Friesen, D. K., Rao, I. M., Buhler, S., and Frossard, E.:
Phosphorus Transformations in an Oxisol under contrasting land-use systems:
The role of the soil microbial biomass, Plant Soil, 237, 197–210, https://doi.org/10.1023/a:1013301716913, 2001.
Oehl, F., Oberson, A., Probst, M., Fliessbach, A., Roth, H. R., and Frossard,
E.: Kinetics of microbial phosphorus uptake in cultivated soils, Biol.
Fertil. Soils, 34, 31–41, 2001a.
Oehl, F., Oberson, A., Sinaj, S., and Frossard, E.: Organic phosphorus
mineralization studies using isotopic dilution techniques, Soil Sci. Soc. Am.
J., 65, 780–787, 2001b.
Oehl, F., Frossard, E., Fliessbach, A., Dubois, D., and Oberson, A.: Basal
organic phosphorus mineralization in soils under different farming systems,
Soil Biol. Biochem., 36, 667–675, https://doi.org/10.1016/j.soilbio.2003.12.010, 2004.
Ohno, T. and Zibilske, L. M.: Determination of low concentrations of
phosphorus in soil extracts using malachite green, Soil Sci. Soc. Am. J., 55,
892–895, 1991.
Olsen, S. R., Cole, C. V., Watanabe, F. S., and Dean, L. A.: Estimation of
Available Phosphorus in Soils by Extraction with Sodium Bicarbonate, USDA
Circ. 939, US Government Printing Office, Washington, DC, 1954.
Penuelas, J., Sardans, J., Rivas-Ubach, A., and Janssens, I. A.: The
human-induced imbalance between C, N and P in Earth's life system, Glob.
Change Biol., 18, 3–6, https://doi.org/10.1111/j.1365-2486.2011.02568.x, 2012.
Penuelas, J., Poulter, B., Sardans, J., Ciais, P., van der Velde, M., Bopp,
L., Boucher, O., Godderis, Y., Hinsinger, P., Llusia, J., Nardin, E., Vicca,
S., Obersteiner, M., and Janssens, I. A.: Human-induced nitrogen-phosphorus
imbalances alter natural and managed ecosystems across the globe, Nat.
Commun., 4, 2934, https://doi.org/10.1038/ncomms3934, 2013.
Randhawa, P. S., Condron, L. M., Di, H. J., Sinaj, S., and McLenaghen, R. D.:
Effect of green manure addition on soil organic phosphorus mineralisation,
Nutr. Cycl. Agroecosyst., 73, 181–189, https://doi.org/10.1007/s10705-005-0593-z, 2005.
Randriamanantsoa, L., Morel, C., Rabeharisoa, L., Douzet, J. M., Jansa, J.,
and Frossard, E.: Can the isotopic exchange kinetic method be used in soils
with a very low water extractable phosphate content and a high sorbing
capacity for phosphate ions?, Geoderma, 200, 120–129, https://doi.org/10.1016/j.geoderma.2013.01.019, 2013.
Randriamanantsoa, L., Frossard, E., Oberson, A., and Bünemann, E. K.:
Gross organic phosphorus mineralization rates can be assessed in a Ferralsol
using an isotopic dilution method, Geoderma, 257, 86–93, https://doi.org/10.1016/j.geoderma.2015.01.003, 2015.
Reed, S. C., Yang, X. J., and Thornton, P. E.: Incorporating phosphorus
cycling into global modeling efforts: a worthwhile, tractable endeavor, New
Phytol., 208, 324–329, https://doi.org/10.1111/nph.13521, 2015.
Regelink, I. C., Weng, L., Lair, G. J., and Comans, R. N. J.: Adsorption of
phosphate and organic matter on metal (hydr)oxides in arable and forest soil:
a mechanistic modelling study, Eur. J. Soil Sci., 66, 867–875, https://doi.org/10.1111/ejss.12285, 2015.
Richardson, A. E. and Simpson, R. J.: Soil Microorganisms Mediating
Phosphorus Availability, Plant Physiol., 156, 989–996, https://doi.org/10.1104/pp.111.175448, 2011.
Ryan, P. R., Delhaize, E., and Jones, D. L.: Function and mechanism of
organic anion exudation from plant roots, Annu. Rev. Plant Physiol. Plant
Molec. Biol., 52, 527–560, https://doi.org/10.1146/annurev.arplant.52.1.527, 2001.
Salonius, P. O., Robinson, J. B., and Chase, F. E.: A Comparison Of
Autoclaved And Gamma-Irradiated Soils As Media For Microbial Colonization
Experiments, Plant Soil, 27, 239–248, https://doi.org/10.1007/bf01373392, 1967.
Schneider, K. D., Voroney, R. P., Lynch, D. H., Oberson, A., Frossard, E.,
and Bünemann, E. K.: Microbially-mediated P fluxes in calcareous soils as
a function of water-extractable phosphate, Soil Biol. Biochem., 106, 51–60, https://doi.org/10.1016/j.soilbio.2016.12.016, 2017.
Schnurer, J. and Rosswall, T.: Fluorescein diacetate hydrolysis as a measure
of total microbial activity in soil and litter, Appl. Environ. Microbiol.,
43, 1256–1261, 1982.
Schoenau, J. J. and O'Halloran, I. P.: Sodium Bicarbonate-Extractable
Phosphorus, in: Soil Sampling and Methods of Analysis, edited by: Carter, M.
R. and Gregorich, E. G., CRC Press, Boca Raton, FL, 89–94, 2008.
Serrasolsas, I. and Khanna, P. K.: Changes in heated and autoclaved forest
soils of SE Australia, 2. Phosphorus and phosphatase activity,
Biogeochemistry, 29, 25–41, 1995a.
Serrasolsas, I. and Khanna, P. K.: Changes in heated and autoclaved forest
soils of SE Australia, 1. Carbon and nitrogen, Biogeochemistry, 29, 3–24,
1995b.
Serrasolsas, I., Romanya, J., and Khanna, P. K.: Effects of heating and
autoclaving on sorption and desorption of phosphorus in some forest soils,
Biol. Fertil. Soils, 44, 1063–1072, https://doi.org/10.1007/s00374-008-0301-7, 2008.
Setia, R., Verma, S. L., and Marschner, P.: Measuring microbial biomass
carbon by direct extraction – Comparison with chloroform
fumigation-extraction, Eur. J. Soil Biol., 53, 103–106, https://doi.org/10.1016/j.ejsobi.2012.09.005, 2012.
Shin, Y.-J., Kwak, J. I., and An, Y.-J.: Evidence for the inhibitory effects
of silver nanoparticles on the activities of soil exoenzymes, Chemosphere,
88, 524–529, https://doi.org/10.1016/j.chemosphere.2012.03.010, 2012.
Sirova, D., Rejmankova, E., Carlson, E., and Vrba, J.: Current standard
assays using artificial substrates overestimate phosphodiesterase activity,
Soil Biol. Biochem., 56, 75–79, https://doi.org/10.1016/j.soilbio.2012.02.008, 2013.
Six, L., Pypers, P., Degryse, F., Smolders, E., and Merckx, R.: The
performance of DGT versus conventional soil phosphorus tests in tropical
soils – An isotope dilution study, Plant Soil, 359, 267–279, https://doi.org/10.1007/s11104-012-1192-9, 2012.
Skipper, H. D. and Westermann, D. T.: Comparative effects of propylene
oxide, sodium azide, and autoclaving on selected soil properties, Soil Biol.
Biochem., 5, 409–414, 1973.
Spohn, M., Ermak, A., and Kuzyakov, Y.: Microbial gross organic phosphorus
mineralization can be stimulated by root exudates – A P-33 isotopic dilution
study, Soil Biol. Biochem., 65, 254–263, https://doi.org/10.1016/j.soilbio.2013.05.028, 2013.
Spohn, M. and Kuzyakov, Y.: Phosphorus mineralization can be driven by
microbial need for carbon, Soil Biol. Biochem., 61, 69–75, https://doi.org/10.1016/j.soilbio.2013.02.013, 2013.
Tanaka, S., Kobayashi, T., Iwasaki, K., Yamane, S., Maeda, K., and Sakurai,
K.: Properties and metabolic diversity of microbial communities in soils
treated with steam sterilization compared with methyl bromide and
chloropicrin fumigations, Soil Sci. Plant Nutr., 49, 603–610, 2003.
Tiwari, S. C., Tiwari, B. K., and Mishra, R. R.: Enzyme activities in soils –
effects of leaching, ignition, autoclaving and fumigation, Soil Biol.
Biochem., 20, 583–585, https://doi.org/10.1016/0038-0717(88)90079-x, 1988.
Tran, T. S., Fardeau, J. C., and Giroux, M.: Effects of soil properties on
plant-available phosphorus determined by the isotopic dilution phosphorus-32
method, Soil Sci. Soc. Am. J., 52, 1383–1390, 1988.
Turner, B. L., Condron, L. M., Richardson, S. J., Peltzer, D. A., and
Allison, V. J.: Soil organic phosphorus transformations during pedogenesis,
Ecosystems, 10, 1166–1181, 2007.
Vitousek, P. M. and Farrington, H.: Nutrient limitation and soil
development: Experimental test of a biogeochemical theory, Biogeochemistry,
37, 63–75, 1997.
Wanek, W., Mooshammer, M., Blöchl, A., Hanreich, A., and Richter, A.:
Determination of gross rates of amino acid production and immobilization
in decomposing leaf litter by a novel 15N isotope pool dilution technique,
Soil Bio. Biochem., 42, 1293–1302, 2010.
Wolf, D. C., Dao, T. H., Scott, H. D., and Lavy, T. L.: Influence of
sterilization methods on selected soil microbiological, physical, and
chemical properties, J. Environ. Qual., 18, 39–44, 1989.
Wyngaard, N., Cabrera, M. L., Jarosch, K. A., and Bünemann, E. K.:
Phosphorus in the coarse soil fraction is related to soil organic phosphorus
mineralization measured by isotopic dilution, Soil Biol. Biochem., 96,
107–118, https://doi.org/10.1016/j.soilbio.2016.01.022, 2016.
Yang, X. and Post, W. M.: Phosphorus transformations as a function of pedogenesis: A synthesis of soil phosphorus data using Hedley fractionation method, Biogeosciences, 8, 2907–2916, https://doi.org/10.5194/bg-8-2907-2011, 2011.
Yang, X., Post, W. M., Thornton, P. E., and Jain, A.: The distribution of soil phosphorus for global biogeochemical modeling, Biogeosciences, 10, 2525–2537, https://doi.org/10.5194/bg-10-2525-2013, 2013.
Short summary
Efforts to understand the global phosphorus (P) cycle are limited by the scarcity of global data on rates of soil P processes, as well as on its environmental controls. Here, we present a novel approach using radiophosphorus labeling of soils, which allows for the measurement of fluxes of abiotic and biotic soil P processes. This approach is also suitable for strongly weathered and P-depleted soils. Biotic processes are corrected for abiotic processes by comparing live and sterile soils.
Efforts to understand the global phosphorus (P) cycle are limited by the scarcity of global data...
Altmetrics
Final-revised paper
Preprint