Articles | Volume 17, issue 7
https://doi.org/10.5194/bg-17-2009-2020
© Author(s) 2020. 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-17-2009-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Apr 2020
Research article |
| 15 Apr 2020
| 15 Apr 2020
A comparison of patterns of microbial C : N : P stoichiometry between topsoil and subsoil along an aridity gradient
Yuqing Liu
School of Geography Science, Nanjing Normal University, Nanjing
210023, China
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Wenhong Ma
Department of Ecology, School of Ecology and Environment, Inner
Mongolia University, Hohhot 010021, China
Dan Kou
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Xiaxia Niu
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Department of Ecology, School of Ecology and Environment, Inner
Mongolia University, Hohhot 010021, China
Tian Wang
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Yongliang Chen
College of Resources and Environmental Sciences, China Agricultural University, Beijing 100083, China
Dima Chen
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Xiaoqin Zhu
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Mengying Zhao
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Baihui Hao
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Department of Ecology, School of Ecology and Environment, Inner
Mongolia University, Hohhot 010021, China
Jinbo Zhang
School of Geography Science, Nanjing Normal University, Nanjing
210023, China
Yuanhe Yang
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Huifeng Hu
CORRESPONDING AUTHOR
State Key Laboratory of Vegetation and Environmental Change,
Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
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Earth Syst. Sci. Data, 14, 4339–4350, https://doi.org/10.5194/essd-14-4339-2022, https://doi.org/10.5194/essd-14-4339-2022, 2022
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We used a global-scale dataset for the surface topsoil (>3000 distinct observations of abundance of soil fungi versus bacteria) to generate the first quantitative map of soil fungal proportion across terrestrial ecosystems. We reveal striking latitudinal trends. Fungi dominated in regions with low mean annual temperature (MAT) and net primary productivity (NPP) and bacteria dominated in regions with high MAT and NPP.
Zhenjiao Cao, Yufu Jia, Yue Cai, Xin Wang, Huifeng Hu, Jinbo Zhang, Juan Jia, and Xiaojuan Feng
Biogeosciences, 16, 3605–3619, https://doi.org/10.5194/bg-16-3605-2019, https://doi.org/10.5194/bg-16-3605-2019, 2019
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Using pathway analysis, we demonstrate that past aridity's effect is mediated by differential mechanisms for substrates of varied complexity. While microbial biomass plays a more important role in the decomposition of fresh litter, enzyme-catalyzed extracellular reactions predominantly govern the mineralization of SOC. Our findings have significant implications for assessing and modeling decomposition in different aridity regimes.
Xia Zhao, Yuanhe Yang, Haihua Shen, Xiaoqing Geng, and Jingyun Fang
Biogeosciences, 16, 2857–2871, https://doi.org/10.5194/bg-16-2857-2019, https://doi.org/10.5194/bg-16-2857-2019, 2019
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Surface soils interact strongly with both climate and biota and provide fundamental ecosystem services. However, the quantitative linkages between soil, climate, and biota remain unclear at a global scale. By compiling a large global soil database, we mapped eight major soil properties based on machine learning algorithms and developed a global soil–climate–biome diagram. Our results suggest shifts in soil properties under global climate and land cover change.
Yinghui Wang, Robert G. M. Spencer, David C. Podgorski, Anne M. Kellerman, Harunur Rashid, Phoebe Zito, Wenjie Xiao, Dandan Wei, Yuanhe Yang, and Yunping Xu
Biogeosciences, 15, 6637–6648, https://doi.org/10.5194/bg-15-6637-2018, https://doi.org/10.5194/bg-15-6637-2018, 2018
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With global warming, thawing of permafrost releases dissolved organic matter (DOM) into streams. By analyzing DOM along an alpine stream on the Qinghai–Tibet Plateau, we found DOM was mainly from the active layer, but with deepening of the active layer, the contribution of the deep permafrost layer increased, causing a change in the chemical composition of DOM. From the head- to downstream, DOM is undergoing rapid degradation, but some components are persistent and can be transported downstream.
Ting Liu, Liang Wang, Xiaojuan Feng, Jinbo Zhang, Tian Ma, Xin Wang, and Zongguang Liu
Biogeosciences, 15, 1627–1641, https://doi.org/10.5194/bg-15-1627-2018, https://doi.org/10.5194/bg-15-1627-2018, 2018
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Compared to the respiration process, few studies have examined soil carbon leaching possibly enhanced by extreme precipitation events (EPEs). We show that soil carbon leaching was much higher than CO2 loss through respiration under EPEs in grassland soils through incubation experiments. The soil carbon leaching process should be incorporated into soil carbon models when estimating carbon balance in grassland ecosystems, especially considering the projected increase in EPEs with climate change.
Shangshi Liu, Yuanhe Yang, Haihua Shen, Huifeng Hu, Xia Zhao, He Li, Taoyu Liu, and Jingyun Fang
Biogeosciences Discuss., https://doi.org/10.5194/bg-2016-473, https://doi.org/10.5194/bg-2016-473, 2017
Preprint retracted
Xian Yang, Xiulian Chi, Chengjun Ji, Hongyan Liu, Wenhong Ma, Anwar Mohhammat, Zhaoyong Shi, Xiangping Wang, Shunli Yu, Ming Yue, and Zhiyao Tang
Biogeosciences, 13, 4429–4438, https://doi.org/10.5194/bg-13-4429-2016, https://doi.org/10.5194/bg-13-4429-2016, 2016
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Leaf chemical concentrations are key traits in ecosystem functioning. Previous studies were biased for trees and grasses. Here, we explored the patterns of leaf N and P concentrations in relation to climate, soil, and evolutionary history in northern China. We found that climate influenced the community chemical traits through the shift in species composition, whereas soil directly influenced the community chemical traits.
P. Li, J. Zhu, H. Hu, Z. Guo, Y. Pan, R. Birdsey, and J. Fang
Biogeosciences, 13, 375–388, https://doi.org/10.5194/bg-13-375-2016, https://doi.org/10.5194/bg-13-375-2016, 2016
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Our findings suggest that the mechanisms underlying the carbon sinks for natural and planted forests of China differ markedly with various effects from areal expansion and increase in carbon density. The increasing trend in the relative contribution of forest growth to carbon sinks for planted forests highlights that afforestation will continue to increase the carbon sink of China's forests in the future, subject to persistently increasing forest growth after the establishment of plantations.
Z. D. Guo, H. F. Hu, Y. D. Pan, R. A. Birdsey, and J. Y. Fang
Biogeosciences, 11, 4115–4122, https://doi.org/10.5194/bg-11-4115-2014, https://doi.org/10.5194/bg-11-4115-2014, 2014
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Biogeosciences, 22, 1543–1556, https://doi.org/10.5194/bg-22-1543-2025, https://doi.org/10.5194/bg-22-1543-2025, 2025
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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.
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Biogeosciences, 22, 1341–1354, https://doi.org/10.5194/bg-22-1341-2025, https://doi.org/10.5194/bg-22-1341-2025, 2025
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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.
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Biogeosciences, 22, 135–151, https://doi.org/10.5194/bg-22-135-2025, https://doi.org/10.5194/bg-22-135-2025, 2025
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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
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EGUsphere, https://doi.org/10.5194/egusphere-2024-3324, https://doi.org/10.5194/egusphere-2024-3324, 2024
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While laboratory studies have identified many drivers and their effects on the carbon emission pulse after rewetting of dry soils, a validation with field data is still missing. Here, we show that the carbon emission pulse in the laboratory and in the field increases with soil organic carbon and temperature, but their trends with pre-rewetting dryness and moisture increment at rewetting differ. We conclude that the laboratory findings can be partially validated.
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
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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.
Jet Rijnders, Arthur Vienne, and Sara Vicca
EGUsphere, https://doi.org/10.5194/egusphere-2024-3022, https://doi.org/10.5194/egusphere-2024-3022, 2024
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A mesocosm experiment was set-up to investigate how maize responds to basalt, concrete fines and steel slags application, using a dose-response approach. Biomass increased with basalt application, but did not change with concrete fines or steel slags, except for increased tassel biomass. Mg, Ca and Si generally increased in the crops, while heavy metal concentrations remained unaffected or even decreased in the plants. Overall, crops were positively affected by application of silicate materials.
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
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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
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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.
Claude Raoul Müller, Johan Six, Daniel Mugendi Njiru, Bernard Vanlauwe, and Marijn Van de Broek
EGUsphere, https://doi.org/10.5194/egusphere-2024-2796, https://doi.org/10.5194/egusphere-2024-2796, 2024
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We studied how different organic and inorganic nutrient inputs affect soil organic carbon (SOC) down to 70 cm in Kenya. After 19 years, all organic treatments increased SOC stocks as compared to the control, but mineral nitrogen had no significant effect. Manure was the organic treatment that significantly increased SOC the deepest as its effect could be observed down to 60 cm. Manure was the best strategy to limit SOC loss in croplands and maintain soil quality after deforestation.
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
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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.
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
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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
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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.
Xuemei Yang, Jie Zhang, Khan M. G. Mostofa, Mohammad Mohinuzzaman, H. Henry Teng, Nicola Senesi, Giorgio S. Senesi, Jie Yuan, Yu Liu, Si-Liang Li, Xiaodong Li, Baoli Wang, and Cong-Qiang Liu
EGUsphere, https://doi.org/10.5194/egusphere-2023-2994, https://doi.org/10.5194/egusphere-2023-2994, 2024
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The solubility characteristics of soil humic acids (HA), fulvic acids (FA), and protein-like substances (PLS) at different pH values remain uncertain. The key findings includes: HA solubility increases with increasing pH and decreases with decreasing pH; HApH6 and HApH1 contribute to 39.1–49.2 % and 3.1–24.1 % of total DOM, respectively; and HApH2, FA, and PLS are highly soluble at acidic pH values and are transported by ambient water. These issues are vital for sustainable soil management.
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
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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
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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
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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
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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.
Marleen Pallandt, Marion Schrumpf, Holger Lange, Markus Reichstein, Lin Yu, and Bernhard Ahrens
EGUsphere, https://doi.org/10.5194/egusphere-2024-186, https://doi.org/10.5194/egusphere-2024-186, 2024
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As soils get warmer due to climate change, SOC decomposes faster because of higher microbial activity, but only with sufficient soil moisture. We modelled how microbes decompose plant litter and microbial residues at different soil depths. We found that deep soil layers are more sensitive than topsoils. SOC is lost from the soil with warming, but this can be mitigated or worsened depending on the type of litter and its sensitivity to temperature. Droughts can reduce warming-induced SOC losses.
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
Cited articles
Achbergerová, L. and Nahálka, J.: Polyphosphate – an ancient energy
source and active metabolic regulator, Microb. Cell Fact., 10, 63, https://doi.org/10.1186/1475-2859-10-63,
2011.
Aponte, C., Marañón, T., García, L. V., Johnson, D., Vile, M.,
and Wieder, K.: Microbial C, N and P in soils of Mediterranean oak forests:
influence of season, canopy cover and soil depth, Biogeochemistry, 101,
77–92, 2010.
Blume, E., Bischoff, M., Reichert, J. M., Moorman, T., Konopka, A., and
Turco, R. F.: Surface and subsurface microbial biomass, community structure
and metabolic activity as a function of soil depth and season, Appl. Soil
Ecol., 20, 171–181, https://doi.org/10.1016/S0929-1393(02)00025-2, 2002.
Bossio, D. A. and Scow, K. M.: Impacts of Carbon and Flooding on Soil
Microbial Communities: Phospholipid Fatty Acid Profiles and Substrate
Utilization Patterns, Microb. Ecol., 35, 265–278, 1998.
Butterbach-Bahl, K., Baggs Elizabeth, M., Dannenmann, M., Kiese, R., and
Zechmeister-Boltenstern, S.: Nitrous oxide emissions from soils: how well do
we understand the processes and their controls?, Philos. T.
R. Soc. B, 368, 20130122,
https://doi.org/10.1098/rstb.2013.0122, 2013.
Camenzind, T., Hättenschwiler, S., Treseder, K. K., Lehmann, A., and
Rillig, M. C.: Nutrient limitation of soil microbial processes in tropical
forests, 88, 4–21, https://doi.org/10.1002/ecm.1279, 2018.
Chadwick, O. A., Derry, L. A., Vitousek, P. M., Huebert, B. J., and Hedin,
L. O.: Changing sources of nutrients during four million years of ecosystem
development, Nature, 397, 491–497, https://doi.org/10.1038/17276, 1999.
Chen, D., Mi, J., Chu, P., Cheng, J., Zhang, L., Pan, Q., Xie, Y., and Bai,
Y.: Patterns and drivers of soil microbial communities along a precipitation
gradient on the Mongolian Plateau, Landscape Ecol., 30, 1669–1682, 2014.
Chen, Y. L., Chen, L. Y., Peng, Y. F., Ding, J. Z., Li, F., Yang, G. B.,
Kou, D., Liu, L., Fang, K., and Zhang, B. B.: Linking microbial C : N : P
stoichiometry to microbial community and abiotic factors along a 3500 km
grassland transect on the Tibetan Plateau, Global Ecol. Biogeogr.,
25, 1416–1427, 2016.
Cherwin, K. and Knapp, A.: Unexpected patterns of sensitivity to drought in
three semi-arid grasslands, Oecologia, 169, 845–852,
https://doi.org/10.1007/s00442-011-2235-2, 2012.
Cleveland, C. C. and Liptzin, D.: C : N : P Stoichiometry in Soil: Is There a
“Redfield Ratio” for the Microbial Biomass?, Biogeochemistry, 85, 235–252,
2007.
Delgado-Baquerizo, M., Powell, J. R., Hamonts, K., Reith, F., Mele, P.,
Brown, M. V., Dennis, P. G., Ferrari, B. C., Fitzgerald, A., and Young, A.:
Circular linkages between soil biodiversity, fertility and plant
productivity are limited to topsoil at the continental scale, New
Phytol., 215, 1186–1196, https://doi.org/10.1111/nph.14634, 2017.
Delgado-Baquerizo, M., Maestre, F. T., Gallardo, A., Bowker, M. A.,
Wallenstein, M. D., Quero, J. L., Ochoa, V., Gozalo, B.,
Garcíagómez, M., and Soliveres, S.: Decoupling of soil nutrient
cycles as a function of aridity in global drylands, Nature, 502, 672–676, https://doi.org/10.1038/nature12670, 2013.
Elser, J. J., Fagan, W. F., Denno, R. F., Dobberfuhl, D. R., Folarin, A.,
Huberty, A., Interlandi, S., Kilham, S. S., Mccauley, E., and Schulz, K. L.:
Nutritional constraints in terrestrial and freshwater food webs, Nature,
408, 578–580, 2000a.
Elser, J. J., Sterner, R. W., Gorokhova, E., Fagan, W. F., Markow, T. A.,
Cotner, J. B., Harrison, J. F., Hobbie, S. E., Odell, G. M., and Weider, L.
W.: Biological stoichiometry from genes to ecosystems, Ecol. Lett., 3, 540–550, 2000b.
Fanin, N., Fromin, N., Buatois, B., and Hättenschwiler, S.: An experimental test of the hypothesis of non-homeostatic consumer stoichiometry in a plant litter-microbe system, Ecol. Lett., 16, 764–772, https://doi.org/10.1111/ele.12108, 2013.
Fierer, N., Schimel, J. P., and Holden, P. A.: Variations in microbial
community composition through two soil depth profiles, Soil Biol.
Biochem., 35, 167–176, 2003.
Fierer, N., Bradford, M. A., and Jackson, R. B.: Toward an ecological
classification of soil bacteria, Ecology, 88, 1354–1364, 2007.
Fierer, N., Strickland, M. S., Liptzin, D., Bradford, M. A., and Cleveland,
C. C.: Global patterns in belowground communities, Ecol. Lett., 12,
1238–1249, 2010.
Fritze, H., Pietikäinen, J., and Pennanen, T.: Distribution of
microbial biomass and phospholipid fatty acids in Podzol profiles under
coniferous forest, Eur. J. Soil Sci., 51, 565–573,
https://doi.org/10.1111/j.1365-2389.2000.00346.x, 2000.
Griffiths, B. S., Spilles, A., and Bonkowski, M.: C : N : P stoichiometry and
nutrient limitation of the soil microbial biomass in a grazed grassland site
under experimental P limitation or excess, Ecol. Process., 1, 6, https://doi.org/10.1186/2192-1709-1-6, 2012.
Hartman, W. H. and Richardson, C. J.: Differential Nutrient Limitation of
Soil Microbial Biomass and Metabolic Quotients (qCO2): Is There a
Biological Stoichiometry of Soil Microbes?, PloS one, 8, e57127, https://doi.org/10.1371/journal.pone.0057127, 2013.
Hedley, M. J. and Stewart, J. W. B.: Method to measure microbial
phosphate in soils, Soil Biol. Biochem., 14, 377–385, 1982.
Heuck, C., Weig, A., and Spohn, M.: Soil microbial biomass C : N : P
stoichiometry and microbial use of organic phosphorus, Soil Biol.
Biochem., 85, 119–129, 2015.
Jaleel, C. A., Manivannan, P., Wahid, A., Farooq, M., Al-Juburi, H. J., Somasundaram, R., and Panneerselvam, R.: Drought stress in plants: a review on morphological characteristics and pigments composition, Int. J. Agr. Biol., 11, 100–105, 2009.
Jenkinson, D. S. and Powlson, D. S.: The effects of biocidal treatments on metabolism in soil – I. Fumigation with chloroform, Soil Biol. Biochem., 8, 167–177, https://doi.org/10.1016/0038-0717(76)90001-8, 1976.
Joergensen, R. G.: The fumigation-extraction method to estimate soil
microbial biomass: Calibration of the kEC value, Soil Biol.
Biochem., 28, 25–31, https://doi.org/10.1016/0038-0717(95)00102-6, 1996.
Kooijman, A. M., van Mourik, J. M., and Schilder, M. L. M.: The relationship
between N mineralization or microbial biomass N with micromorphological
properties in beech forest soils with different texture and pH, Biol.
Fert. Soils, 45, 449, https://doi.org/10.1007/s00374-009-0354-2, 2009.
Kou, D., Ma, W. H., Ding, J. Z., Zhang, B. B., Fang, K., Hu, H., Yu, J. C., Wang, T., Qin, S. Q., Zhao, X., Fang, J. Y., and Yang, Y. H.: Dryland soils in northern China sequester carbon during the early 2000s warming hiatus period, Funct. Ecol., 32, 1620–1630, https://doi.org/10.1111/1365-2435.13088, 2018.
Li, H., Zhang, J., Hu, H., Chen, L., Zhu, Y., Shen, H., and Fang, J.: Shift
in soil microbial communities with shrub encroachment in Inner Mongolia
grasslands, China, Eur. J. Soil Biol., 79, 40–47, 2017.
Li, P., Yang, Y., Han, W., and Fang, J.: Global patterns of soil microbial
nitrogen and phosphorus stoichiometry in forest ecosystems, Global Ecol.
Biogeogr., 23, 979–987, 2015.
Li, X. Z. and Chen, Z. Z.: Soil microbial biomass C and N along a climatic
transect in the Mongolian steppe, Biol. Fert. Soils, 39,
344–351, 2004.
Li, Y., Wu, J., Liu, S., Shen, J., Huang, D., Su, Y., Wei, W., and Syers, J.
K.: Is the C : N : P stoichiometry in soil and soil microbial biomass related to
the landscape and land use in southern subtropical China?, Global
Biogeochem. Cy., 26, GB4002, https://doi.org/10.1029/2012gb004399, 2012.
Maestre, F. T., Delgado-Baquerizo, M., Jeffries, T. C., Eldridge, D. J.,
Ochoa, V., Gozalo, B., Quero, J. L., García-Gómez, M., Gallardo,
A., Ulrich, W., Bowker, M. A., Arredondo, T., Barraza-Zepeda, C., Bran, D.,
Florentino, A., Gaitán, J., Gutiérrez, J. R., Huber-Sannwald, E.,
Jankju, M., Mau, R. L., Miriti, M., Naseri, K., Ospina, A., Stavi, I., Wang,
D., Woods, N. N., Yuan, X., Zaady, E., and Singh, B. K.: Increasing aridity
reduces soil microbial diversity and abundance in global drylands,
P. Natl. Acad. Sci. USA, 112, 15684, https://doi.org/10.1073/pnas.1516684112, 2015.
Manzoni, S., Trofymow, J. A., Jackson, R. B., and Porporato, A.:
Stoichiometric controls on carbon, nitrogen, and phosphorus dynamics in
decomposing litter, Ecol. Monogr., 80, 89–106, 2010.
Maria, M., Wolfgang, W., Sophie, Z. B., and Andreas, R.: Stoichiometric
imbalances between terrestrial decomposer communities and their resources:
mechanisms and implications of microbial adaptations to their resources,
Front. Microbiol., 5, 22, https://doi.org/10.3389/fmicb.2014.00022, 2014.
McGroddy, M. E., Daufresne, T., and Hedin, L. O.: Scaling of C : N : P
stoichiometry in forests worldwide: Implications of terrestrial
redfield-type ratios, Ecology, 85, 2390–2401, 2004.
Mooshammer, M., Wanek, W., Hämmerle, I., Fuchslueger, L., Hofhansl, F.,
Knoltsch, A., Schnecker, J., Takriti, M., Watzka, M., Wild, B., Keiblinger,
K. M., Zechmeister-Boltenstern, S., and Richter, A.: Adjustment of microbial
nitrogen use efficiency to carbon : nitrogen imbalances regulates soil
nitrogen cycling, Nat. Commun., 5, 3694, https://doi.org/10.1038/ncomms4694, 2014.
Mouginot, C., Kawamura, R., Matulich, K. L., Berlemont, R., Allison, S. D.,
Amend, A. S., and Martiny, A. C.: Elemental stoichiometry of Fungi and
Bacteria strains from grassland leaf litter, Soil Biol. Biochem.,
76, 278–285, 2014.
Nielsen, P. L., Andresen, L. C., Michelsen, A., Schmidt, I. K., and
Kongstad, J.: Seasonal variations and effects of nutrient applications on N
and P and microbial biomass under two temperate heathland plants, Appl.
Soil Ecol., 42, 279–287, https://doi.org/10.1016/j.apsoil.2009.05.006,
2009.
Otten, W., Gilligan, C. A., Watts, C. W., Dexter, A. R., and Hall, D.:
Continuity of air-filled pores and invasion thresholds for a soil-borne
fungal plant pathogen, Rhizoctonia solani, Soil Biol. Biochem.,
31, 1803–1810, 1999.
Peng, X. and Wang, W.: Stoichiometry of soil extracellular enzyme activity
along a climatic transect in temperate grasslands of northern China, Soil
Biol. Biochem., 98, 74–84, 2016.
Reich, P. B. and Oleksyn, J.: Global patterns of plant leaf N and P in
relation to temperature and latitude, P. Natl. Acad.
Sci. USA, 101, 11001, https://doi.org/10.1073/pnas.0403588101, 2004.
Sardans, J., Rivas-Ubach, A., and Peñuelas, J.: The elemental
stoichiometry of aquatic and terrestrial ecosystems and its relationships
with organismic lifestyle and ecosystem structure and function: a review and
perspectives, Biogeochemistry, 111, 1–39, 2012.
Sterner, R. W. and Elser, J. J.: Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere, Princeton University Press, Princeton, 2002.
Strickland, M. S. and Rousk, J.: Considering fungal:bacterial dominance in
soils – Methods, controls, and ecosystem implications, Soil Biol.
Biochem., 42, 1385–1395, https://doi.org/10.1016/j.soilbio.2010.05.007,
2010.
Tian, H. Q., Chen, G. S., Zhang, C., Melillo, J. M., and Hall, C. A. S.:
Pattern and variation of C : N : P ratios in China's soils: a synthesis of
observational data, Biogeochemistry, 98, 139–151, 2010.
Tischer, A., Potthast, K., and Hamer, U.: Land-use and soil depth affect
resource and microbial stoichiometry in a tropical mountain rainforest
region of southern Ecuador, Oecologia, 175, 375–393, 2014.
Trabucco, A. and Zomer, R. J.: Global Aridity Index (Global-Aridity)
and Global Potential Evapo-Transpiration (Global-PET) Geospatial Database,
CGIAR Consortium for Spatial Information, CGIAR-CSI GeoPortal, available at: https://cgiarcsi.community/data/global-aridity-and-pet-database/ (last access: 10 April 2020), 2009.
Vance, E. D., Brookes,
P. C., and Jenkinson, D. S.: An extraction method for measuring soil
microbial biomass C, Soil Biol. Biochem., 19, 703–707, 1987.
Veraart, A. J., de Klein, J. J. M., and Scheffer, M.: Warming Can Boost
Denitrification Disproportionately Due to Altered Oxygen Dynamics, PLOS ONE,
6, e18508, https://doi.org/10.1371/journal.pone.0018508, 2011.
Vitousek, P. M. and Farrington, H. J. B.: Nutrient limitation and soil
development: Experimental test of a biogeochemical theory, Biogeochemistry, 37, 63–75, https://doi.org/10.1023/A:1005757218475, 1997.
Vitousek, P. M., Porder, S., Houlton, B. Z., and Chadwick, O. A.: Terrestrial
phosphorus limitation: mechanisms, implications, and nitrogen-phosphorus
interactions, Ecol. Appl., 20, 5–15, https://doi.org/10.1890/08-0127.1, 2010.
Walker, T. W. and Syers, J. K.: The fate of phosphorus during pedogenesis,
Geoderma, 15, 1–19, 1976.
Wang, C., Wang, X., Liu, D., Wu, H., Lü, X., Fang, Y., Cheng, W., Luo,
W., Jiang, P., Shi, J., Yin, H., Zhou, J., Han, X., and Bai, E.: Aridity
threshold in controlling ecosystem nitrogen cycling in arid and semi-arid
grasslands, Nat. Commun., 5, 4799, https://doi.org/10.1038/ncomms5799, 2014.
Wu, J., Joergensen, R. G., Pommerening, B., Chaussod, R., and Brookes, P. C.:
Measurement of soil microbial biomass C by fumigation-extraction – an
automated procedure, Soil Biol. Biochem., 22, 1167–1169, 1990.
Xu, X., Thornton, P. E., and Post, W. M.: A global analysis of soil microbial
biomass carbon, nitrogen and phosphorus in terrestrial ecosystems, Global
Ecol. Biogeogr., 22, 737–749, 2013.
Yuan, Z. Y., Chen, H. Y. H., and Reich, P. B.: Global-scale latitudinal
patterns of plant fine-root nitrogen and phosphorus, Nat. Commun.,
2, 344, https://doi.org/10.1038/ncomms1346, 2011.
Zechmeister-Boltenstern, S., Keiblinger, K. M., Mooshammer, M.,
Peñuelas, J., Richter, A., Sardans, J., and Wanek, W.: The application of
ecological stoichiometry to plant–microbial–soil organic matter
transformations, Ecol. Monogr., 85, 133–155, 2016.
Zomer, R. J., Trabucco, A., Bossio, D. A., and Verchot, L. V.: Climate change mitigation: A spatial analysis of global land suitability for clean development mechanism afforestation and reforestation, Agr. Ecosyst. Environ., 126, 67–80, doi:10.1016/j.agee.2008.01.014, 2008.
Short summary
The microbial C : N ratio increased with aridity, while the microbial N : P ratio decreased with aridity, which implied that drought-stimulated microbes tend to be more N conservative. Among all examined ecological factors, substrate supply and microbial structure together controlled the microbial stoichiometry. Overall, these results illustrated N and P limitation in microbial biomass at deeper soil depths along the aridity gradient and limited responses to ecological factors in the subsoil.
The microbial C : N ratio increased with aridity, while the microbial N : P ratio decreased with...
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