Articles | Volume 15, issue 14
https://doi.org/10.5194/bg-15-4481-2018
© Author(s) 2018. 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-15-4481-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jul 2018
Research article |
| 24 Jul 2018
| 24 Jul 2018
Understory vegetation plays the key role in sustaining soil microbial biomass and extracellular enzyme activities
Yang Yang
College of Geographic Science, Harbin Normal University, Harbin, 150025, China
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Xinyu Zhang
CORRESPONDING AUTHOR
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Chuang Zhang
Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang, 050021, Hebei, China
Huimin Wang
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Xiaoli Fu
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Fusheng Chen
College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China
Songze Wan
College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China
Xiaomin Sun
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Xuefa Wen
Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
Jifu Wang
CORRESPONDING AUTHOR
College of Geographic Science, Harbin Normal University, Harbin, 150025, China
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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.
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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
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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.
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
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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
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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
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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
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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
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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
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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
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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
Allison, S. D.: Cheaters, diffusion and nutrients constrain decomposition by
microbial enzymes in spatially structured environments, Ecol. Lett., 8, 626–635, 2005.
Allison, S. D. and Vitousek, P. M.: Responses of extracellular enzymes to simple
and complex nutrient inputs, Soil Biol. Biochem., 37, 937–944, 2005.
Bao, S. D.: Soil and Agricultural Chemistry Analysis, 3rd Edn., Agricultrue
Press, Beijing, 2008.
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.
Bouajila, A. and Gallali, T.: Land use effect on soil and particulate organic
carbon, and aggregate stability in some soils in Tunisia, Afr. J. Agric. Res.,
5, 764–774, 2010.
Bradley, K., Hancock, J. E., Giardina, C. P., and Pregitzer, K. S.: Soil microbial
community responses to altered lignin biosynthesis in Populus tremuloides
vary among three distinct soils, Plant Soil, 294, 185–201, 2007.
Brant, J. B., Myrold, D. D., and Sulzman, E. W.: Root controls on soil microbial
community structure in forest soils, Oecologia, 148, 650–659, 2006.
Burns, R. G., DeForest, J. L., Marxsen, J., Sinsabaugh, R. L., Stromberger,
M. E., Wallenstein, M. D., Weintraub, M. N., and Zoppini, A.: Soil enzymes in
a changing environment: current knowledge and future directions, Soil Biol.
Biochem., 58, 216–234, 2013.
De Deyn, G. B., Cornelissen, J. H. C., and Bardgett, R. D.: Plant functional
traits and soil carbon sequestration in contrasting biomes, Ecol. Lett.,
11, 516–531, 2008.
DeForest, J. L.: The influence of time, storage temperature, and substrate age
on potential soil enzyme activity in acidic forest soils using MUB-linked
substrates and L-DOPA, Soil Biol. Biochem., 41, 1180–1186, 2009.
Denef, K., Roobroeck, D., Wadu, M. C. W. M., Lootens, P., and Boeckx, P.:
Microbial community composition and rhizodeposit-carbon assimilation in
differently managed temperate grassland soils, Soil Biol. Biochem., 44, 144–153, 2009.
Dijkstra, F. A., Carrillo, Y., Pendall, E., and Morgan, J. A.: Rhizosphere
priming: a nutrient, Front. Microbiol., 4, 1–8, 2013.
Fekete, I., Varga, C., Kotroczó, Z., Tóth, J. A., and Várbíró,
G.: The relation between various detritus inputs and soil enzyme activities in
a Central European deciduous forest, Geoderma, 167, 15–21, 2011.
Fu, X. L., Yang, F. T., Wang, J. L., Di, Y. B., Dai, X. Q., Zhang, X. Y., and
Wang, H. M.: Understory vegetation leads to changes in soil acidity and in
microbial communities 27 years after reforestation, Sci. Total Environ.,
502, 280–286, 2015.
Garten, C. T., Post, W. M., Hanson, P. J., and Cooper, L. W.: Forest soil carbon
inventories and dynamics along an elevation gradient in the southern Appalachian
Mountains, Biogeochemistry, 42, 115–145, 1999.
Hart, M. M., Reader, R. J., and Klironomos, J. N.: Life-history strategies of
arbuscular mycorrhizal fungi in relation to their successional dynamics,
Mycologia, 93, 1186–1194, 2001.
Huang, Y. M., Yang, W. Q., Zhang, J., Lu, C. T., Liu, X., Wang, W., Guo, W.,
and Zhang, D. J.: Response of soil microorganism and soil enzyme activity to
understory plant removal in the subalpine coniferous plantation of western
Sichuan, Acta Ecol. Sin., 34, 4183–4192, 2014.
Huang, Z. Q., He, Z. M., Wan, X. H., Hu, Z. H., Fan, S. H., and Yang, Y. S.:
Harvest residue management effects on tree growth and ecosystem carbon in a
Chinese fir plantation in subtropical China, Plant Soil, 364, 303–314, 2013.
Jones, D. L. and Willett, V. B.: Experimental evaluation of methods to quantify
dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) in soil,
Soil Biol. Biochem., 38, 991–999, 2006.
Kaiser, C., Koranda, M., Kitzler, B., Fuchslueger, L., Schnecker, J., Schweiger,
P., Rasche, F., Zechmeister-Boltenstern, S., Sessitsch, A., and Richter, A.:
Belowground carbon allocation by trees drives seasonal patterns of extracellular
enzyme activities by altering microbial community composition in a beech forest
soil, New Phytol., 187, 843–858, 2010.
Kuzyakov, Y. and Blagodatskaya, E.: Microbial hotspots and hot moments in soil:
Concept & review, Soil Biol. Biochem., 83, 184–199, 2015.
Lamb, E. G., Kennedy, N., and Siciliano, S. D.: Effects of plant species richness
and evenness on soil microbial community diversity and function, Plant Soil,
338, 483–495, 2011.
Li, L., Zhou, G. Y., Liu, J. A., and Li, H.: The resource investigation and
community structure characteristics of mycorrhizal fungi associated with
Chinese fir, Afr. J. Biotechnol., 10, 5719–5724, 2011.
Li, M. H., Du, Z., Pan, H. L., Yan, C. F., Xiao, W. F., and Lei, J. P.: Effects
of neighboring woody plants on target trees with emphasis on effects of
understory shrubs on overstory physiology in forest communities: a mini-review,
Commun. Ecol., 13, 117–128, 2016.
Li, Y. F., Zhang, J. J., Chang, S. X., Jiang, P. K., Zhou, G. M., Fu, S. L.,
Yan, E. R., Wu, J. S., and Lin, L.: Long-term intensive management effects on
soil organic carbon pools and chemical composition in Moso bamboo (Phyllostachys
pubescens) forests in subtropical China, Forest Ecol. Manage., 303, 121–130, 2013.
Lin, G., Zhao, Q., Zhao, L., Li, H. C., and Zeng, D. H.: Effects of understory
removal and nitrogen addition on the soil chemical and biological properties of
Pinus sylvestris var. mongolica plantation in Keerqin Sandy
Land, Chin. J. Appl. Ecol., 23, 1188–1194, 2012.
Liu, Z. F., Wu, J. P., Zhou, L. X., Lin, Y. B., and Fu, S. L.: Effect of
understory fern (Dicranopteris dichotoma) removal on substrate utilization
patterns of culturable soil bacterial communities in subtropical Eucalyptus
plantations, Pedobiologia, 55, 7–13, 2012.
Loeppmann, S., Biagodatskaya, E., Pausch, J., and Kuzyakov, Y.: Enzyme properties
down the soil profile – A matter of substrate quality in rhizosphere and
detritusphere, Soil Biol. Biochem., 103, 274–283, 2016a.
Loeppmann, S., Semenov, M., Blagodatskaya, E., and Kuzyakov, Y.: Substrate
quality affects microbial- and enzyme activities in rooted soil, J. Plant Nutr.
Soil Sci., 179, 39–47, 2016b.
Margalef, O., Sardans, J., Fernandez-Martinez, M., Molowny-Horas, R., Janssens,
I. A., Ciais, P., Goll, D., Richter, A., Obersteiner, M., Asensio, D., and
Penuelas, J.: Global patterns of phosphatase activity in natural soils, Sci.
Rep., 7, 1337, https://doi.org/10.1038/s41598-017-01418-8, 2017.
McNear Jr., D. H.: The rhizosphere roots soil and everything in between, Nat.
Educ. Know., 4, 1, 2013.
Mganga, K. Z., Razavi, B. S., and Kuzyakov, Y.: Microbial and enzymes response
to nutrient additions in soils of Mt. Kilimanjaro region depending on land use,
Eur. J. Soil Biol., 69, 33–40, 2015.
Murugan, R., Beggi, F., and Kumar, S.: Belowground carbon allocation by trees,
understory vegetation and soil type alter microbial community composition and
nutrient cycling in tropical Eucalyptus plantation, Soil Biol. Biochem.,
76, 257–267, 2014.
Nannipieri, P., Trasar-Cepeda, C., and Dick, R. P.: Soil enzyme activity: a
brief history and biochemistry as a basis for appropriate interpretations and
meta-analysis, Biol. Fertil. Soils, 54, 11–19, 2018.
Nilsson, M. C. and Wardle, D. A.: Understory vegetation as a forest ecosystem
driver: evidence from the northern Swedish boreal forest, Front. Ecol. Environ.,
3, 421–428, 2005.
Rosling, A., Midgley, M. G., Cheeke, T., Urbina, H., Fransson, P., and Phillips,
R. P.: Phosphorus cycling in deciduous forest soil differs between stands
dominated by ecto- and arbuscular mycorrhizal trees, New Phytol., 209, 1184–1195, 2016.
Saiya-Cork, K. R., Sinsabaugh, R. L., and Zak, D. R.: The effects of long term
nitrogen deposition on extracellular enzyme activity in an Acer saccharum forest
soil, Soil Biol. Biochem., 34, 1309–1315, 2002.
Sinsabaugh, R. L.: Phenol oxidase, peroxidase and organic matter dynamics of
soil, Soil Biol. Biochem., 24, 391–401, 2010.
Soil Survey Staff: Soil taxonomy: a basic system of soil classification for
making and interpreting soil surveys, 2nd Edn., Government Printing Office,
Washington, D.C., 1999.
Stone, M. M., DeForest, J. L., and Plante, A. F.: Changes in extracellular
enzyme activity and microbial community structure with soil depth at the
Luquillo Critical Zone Observatory, Soil Biol. Biochem., 75, 240–241, 2014.
Trasar-Cepeda, C., Leiros, M. C., and Gil-Sotres, F.: Hydrolytic enzyme
activities in agricultural and forest soils. Some implications for their use as
indicators of soil quality, Soil Biol. Biochem., 40, 2146–2155, 2008.
Urcelay, C., Diaz, S., Gurvich, D. E., Chapin, F. S., Cuevas, E., and Dominguez,
L. S.: Mycorrhizal community resilience in response to experimental plant
functional type removals in a woody ecosystem, J. Ecol., 97, 1291–1301, 2009.
Wang, F. M., Zou, B., Li, H. F., and Li, Z. A.: The effect of understory removal
on microclimate and soil properties in two subtropical lumber plantations, J.
Forest Res., 19, 238–243, 2014.
Wang, Q. K., He, T. X., Wang, S. L., and Liu, L.: Carbon input manipulation
affects soil respiration and microbial community composition in a subtropical
coniferous forest, Agr. Forest. Meteorol., 178, 152–160, 2013.
Wang, X. L., Zhao, J., Wu, J. P., Chen, H., Lin, Y. B., Zhou, L. X., and Fu, S.
L.: Impacts of understory species removal and/or addition on soil respiration
in a mixed forest plantation with native species in southern China, Forest Ecol.
Manage., 261, 1053–1060, 2011.
Wu, J. P., Liu, Z. F., Wang, X. L., Sun, Y. X., Zhou, L. X., Lin, Y. B., and Fu,
S. L.: Effects of understory removal and tree girdling on soil microbial community
composition and litter decomposition in two Eucalyptus plantations in South
China, Funct. Ecol., 25, 921–931, 2011.
Xiong, Y. M., Xia, H. P., Li, Z. A., Cai, X. A., and Fu, S. L.: Impacts of
litter and understory removal on soil properties in a subtropical Acacia
mangium plantation in China, Plant Soil, 304, 179–188, 2008.
Xu, Z. W., Yu, G. R., Zhang, X. Y., He, N. P., Wang, Q. F., Wang, S. Z., Wang,
R. L., Zhao, N., Jia, Y. L., and Wang, C. Y.: Soil enzyme activity and
stoichiometry in forest ecosystems along the North-South Transect in eastern
China (NSTEC), Soil Biol. Biochem., 104, 152–163, 2017.
Yu, G. R., Chen, Z., Piao, S. L., Peng, C. H., Ciais, P., Wang, Q. F., Li, X. R.,
and Zhu, X. J.: High carbon dioxide uptake by subtropical forest ecosystems in
the East Asian monsoon region, P. Natl. Acad. Sci. USA, 111, 4910–4915, 2014.
Zhang, C., Zhang, X.-Y., Zou, H.-T., Kou, L., Yang, Y., Wen, X.-F., Li, S.-G.,
Wang, H.-M., and Sun, X.-M.: Contrasting effects of ammonium and nitrate
additions on the biomass of soil microbial communities and enzyme activities
in subtropical China, Biogeosciences, 14, 4815–4827, https://doi.org/10.5194/bg-14-4815-2017, 2017.
Zhang, J. J., Li, Y. F., Chang, S. X., Jiang, P. K., Zhou, G. M., Liu, J., Wu,
J. S., and Shen, Z. M.: Understory vegetation management affected greenhouse
gas emissions and labile organic carbon pools in an intensively managed Chinese
chestnut plantation, Plant Soil, 376, 363–375, 2014.
Zhang, X. Y., Dong, W. Y., Dai, X. Q., Schaeffer, S., Yang, F. T., Radosevich,
M., Xu, L. L., and Sun, X. M.: Responses of absolute and specific soil enzyme
activities to long term additions of organic and mineral fertilizer, Sci. Total
Environ., 536, 59–67, 2015.
Zhao, J., Wang, X. L., Shao, Y. H., Xu, G. L., and Fu, S. L.: Effects of
vegetation removal on soil properties and decomposer organisms, Soil Biol.
Biochem., 45, 954–960, 2011.
Zhao, J., Wan, S. Z., Fu, S. L., Wang, X. L., Wang, M., Liang, C. F., Chen, Y.
Q., and Zhu, X. L.: Effects of understory removal and nitrogen fertilization
on soil microbial communities in Eucalyptus plantations, Forest Ecol. Manage.,
310, 80–86, 2013.
Zhou, L. L., Cai, L. P., He, Z. M., Wang, R. W., Wu, P. F., and Ma, X. Q.:
Thinning increases understory diversity and biomass, and improves soil properties
without decreasing growth of Chinese fir in southern China, Environ. Sci. Pollut.
Res., 23, 24135–24150, 2016.
Short summary
In this study, we established a long-term field experiment to assess how the soil abiotic properties, PLFAs, and enzyme activities in a Chinese fir plantation changed when the understory vegetation was removed. We found that understory vegetation plays a key role in sustaining soil carbon content, microbial biomass, and extracellular enzyme activities. We therefore proposed that, to sustain soil quality in subtropical Chinese fir plantations, understory vegetation should be maintained.
In this study, we established a long-term field experiment to assess how the soil abiotic...
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