Article
Environmental Sciences
Sichu Wang, Zhiqiang Wang, Jussi Heinonsalo, Yuanxia Zhang, Gang Liu
Summary: Mollisols in Northeast China have shown relatively stable soil organic carbon (SOC) stocks over the past few decades, with a trend of accumulation. The implementation of conservation tillage and a slowdown in land reclamation have helped maintain and restore SOC stocks, but severe soil erosion has led to an imbalance in SOC redistribution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Soil Science
Rose Z. Abramoff, Bertrand Guenet, Haicheng Zhang, Katerina Georgiou, Xiaofeng Xu, Raphael A. Viscarra Rossel, Wenping Yuan, Philippe Ciais
Summary: The Millennial V2 model is developed to simulate C pools that can be measured by extraction or fractionation, showing improved performance in simulating total soil organic C and fractionation fractions compared to the widely-used Century model. The updated processes in Millennial V2 reflect the current understanding of soil C cycling and demonstrate the importance of microbial activity, mineral association, and aggregation in soil C sequestration.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Biodiversity Conservation
Xiao-Min Zeng, Jiao Feng, Dai-Lin Yu, Shu-Hai Wen, Qianggong Zhang, Qiaoyun Huang, Manuel Delgado-Baquerizo, Yu-Rong Liu
Summary: This study investigated the relative contribution of microbial residue carbon (MRC) to soil organic carbon (SOC) and found that local temperature increases were negatively correlated with MRC and SOC. The analysis further revealed that rising temperature reduced SOC by decreasing MRC, which contributes to future reductions in SOC under climate warming.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biodiversity Conservation
Chenxi Yu, Jianxiang Feng, Weizhong Yue, Long Wei, Yu Ma, Xiaofang Huang, Juan Ling, Junde Dong
Summary: This study quantified the soil organic carbon (SOC) and labile organic carbon (LOC) in different depths of soil at four sites in Yingluo Bay, China. The results showed that the natural expansion of mangroves has a positive impact on SOC and LOC, with the 80-year old mangrove site having the highest concentrations of SOC, LOC, and CMI. Therefore, promoting the natural expansion of mangroves can maximize the storage potential of soil organic carbon.
ECOLOGICAL INDICATORS
(2023)
Article
Soil Science
Nicolas L. Breil, Thierry Lamaze, Vincent Bustillo, Claire-Emmanuelle Marcato-Romain, Benoit Coudert, Solen Queguiner, Nathalie Jarosz-Pelle
Summary: The aim of this study was to understand the impact of the combination of no-till and cover cropping on soil organic carbon (SOC) and soil respiration. The results showed that for soils with high initial SOC contents, there was no significant difference in SOC and respiration between the conservation practices and conventional practices. However, for soils with low initial SOC contents, the conservation practices significantly increased SOC and respiration.
SOIL & TILLAGE RESEARCH
(2023)
Article
Soil Science
Justine Lejoly, Sylvie Quideau, Jerome Laganiere
Summary: The presence of invading earthworms has a significant impact on soil morphological features and carbon stocks in boreal forests, resulting in a decrease in forest floor carbon stocks while potentially increasing mineral soil carbon stocks. Further research is needed to understand the long-term implications of earthworm invasion on boreal soil carbon stocks.
Article
Soil Science
Paul L. Mudge, Jamie Millar, Jack Pronger, Alesha Roulston, Veronica Penny, Scott Fraser, Andre Eger, Thomas Caspari, Balin Robertson, Norman W. H. Mason, Louis A. Schipper
Summary: The study found that irrigation in New Zealand significantly reduced soil carbon and nitrogen stocks, with greater losses observed at greater durations of irrigation and lower aridity levels. The impact of irrigation on soil C and N was negatively related to aridity, with increasingly significant carbon losses observed at sites with higher precipitation levels. The results suggest that a new equilibrium may be reached with lower carbon stocks in irrigated grasslands compared to unirrigated grasslands.
Article
Agriculture, Multidisciplinary
Lingfei Yu, Wenjuan Sun, Yao Huang
Summary: Grazing exclusion has positive effects on plant and topsoil carbon accumulation, but its effects may change due to altered soil water conditions under climate change.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Forestry
Joel Orella, Diana Riza Africa, Catherine Hope Bustillo, Noel Pascua, Conrado Marquez, Henry Adornado, Maricar Aguilos
Summary: This study assessed two contrasting peatland sites in the Philippines to evaluate the impact of disturbances on carbon dynamics. The disturbed site showed significantly lower aboveground biomass and carbon content compared to the undisturbed site. Both sites exhibited an increasing trend of soil carbon content with depth. Additionally, the disturbed site had a higher soil carbon emission rate compared to the undisturbed site.
Article
Agronomy
Derong Xiao, Yun Zhang, Pengfei Zhan, Zhenya Liu, Kun Tian, Xingzhong Yuan, Hang Wang
Summary: The study found that rooting by Tibetan pigs significantly reduced plant biomass carbon, soil organic carbon, microbial biomass carbon, and ecosystem carbon in alpine meadows on the Qinghai-Tibetan Plateau. Soil moisture was identified as a key factor negatively affecting carbon stocks, and decreased soil moisture also indirectly impacted microbial biomass carbon through reducing plant biomass.
Article
Environmental Sciences
Catarina Jakovac, Katarzyna A. Korys, Aline F. Rodrigues, Amanda Ronix, Fernanda Tubenchlak, Lara M. Monteiro, Luisa Lemgruber, Herlle Souza Santos, Maiara Mendes, Andre B. Junqueira, Renato Crouzeilles, Veronica Maioli, Agnieszka E. Latawiec
Summary: Ecosystem restoration strategies vary in techniques and ecological contexts. Success in restoring plants, animals, and soils varies, as well as across ecological indicators. Assisted natural regeneration has higher success compared to other strategies, but restoring converted and degraded areas poses challenges.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Biodiversity Conservation
Chuancheng Fu, Yuan Li, Lin Zeng, Haibo Zhang, Chen Tu, Qian Zhou, Kuanxu Xiong, Jiaping Wu, Carlos M. Duarte, Peter Christie, Yongming Luo
Summary: The study reveals that Chinese mangrove, salt marsh and seagrass habitats have relatively low OC stocks with burial rates, and the variability in soil OC stocks is linked to biogeographic factors but mostly impacted by sedimentary processes and anthropic activities. All habitats have experienced significant losses, resulting in estimated emissions of 94.2-395.4 Tg CO(2)e over the past 70 years. Conservation and restoration measures are seen as potential solutions to mitigate climate change and provide additional benefits.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Jingjing Tao, Sajjad Raza, Mengzhen Zhao, Jiaojiao Cui, Peizhou Wang, Yueyu Sui, Kazem Zamanian, Yakov Kuzyakov, Minggang Xu, Zhujun Chen, Jianbin Zhou
Summary: Recent studies have shown that Chinese croplands have lost 27-38% of soil inorganic carbon density (SICD) over the past 30 years, with a simultaneous decrease in soil pH. These losses are associated with the ratio of precipitation to potential evapotranspiration and nitrogen fertilization. SICD decreases are more prominent in humid and semiarid regions, but increase in very arid regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Yong Zhou, Jenia Singh, John R. Butnor, Corli Coetsee, Peter B. Boucher, Madelon F. Case, Evan G. Hockridge, Andrew B. Davies, A. Carla Staver
Summary: This study provides one of the first direct estimates of the impact of over 60 years of fire exclusion in African savannas, showing that fire suppression can increase whole-ecosystem carbon storage but to a lesser extent than previously assumed, with significant belowground carbon reserves being overlooked.
Article
Geosciences, Multidisciplinary
Xiaojun Li, Yunfei Li, Ting Xie, Zongqiang Chang, Xinrong Li
Summary: This study investigated the effect of afforestation with xerophytic shrubs on soil organic carbon (SOC) and total nitrogen (STN) storage in the Tengger Desert. The results showed that afforestation significantly enhanced SOC and STN accumulation, primarily in the upper 0-20 cm soil layer. However, there was an asynchrony in the increase of STN stocks compared to SOC, leading to nitrogen limitations on SOC accumulation during the restoration processes.
Article
Soil Science
Vincent J. M. N. L. Felde, Steffen A. Schweizer, Danh Biesgen, Angela Ulbrich, Daniel Uteau, Claudia Knief, Markus Graf-Rosenfellner, Ingrid Koegel-Knabner, Stephan Peth
Summary: Different methods of isolating soil microaggregates were compared in terms of mechanical stability, organic carbon contents, and microbial community composition. Dry crushing method showed higher stability and bacterial diversity compared to wet sieving, with a stronger correlation between bacterial community composition and clay content.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2021)
Article
Soil Science
Vera L. Baumert, Stefan J. Forstner, Jeroen H. T. Zethof, Cordula Vogel, Julian Heitkoetter, Stefanie Schulz, Ingrid Kogel-Knabner, Carsten W. Mueller
Summary: Tree roots and associated rhizosphere development increase macroaggregate formation in subsoils, enhancing carbon sequestration potential by boosting fungal growth. However, rooting treatment decreases macroaggregate abundance in topsoils, potentially through disruption of preexisting aggregates. The study highlights different mechanisms governing organic carbon dynamics in topsoil versus subsoil.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Agriculture, Multidisciplinary
Stefanie Mayer, Martin Wiesmeier, Eva Sakamoto, Rico Huebner, Remi Cardinael, Anna Kuehnel, Ingrid Koegel-Knabner
Summary: Improved agricultural practices such as agroforestry systems have the potential to sequester significant amounts of soil organic carbon (SOC) in temperate climate zones, with higher sequestration rates in topsoils and subsoils, making them an effective measure for climate change mitigation and adaptation.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Environmental Sciences
Steffen A. Schweizer, Carsten W. Mueller, Carmen Hoschen, Pavel Ivanov, Ingrid Kogel-Knabner
Summary: Correlations between organic carbon (OC) and fine mineral particles play a significant role in binding and increasing the persistence of organic matter (OM). The study shows that finer mineral particles may influence the storage of OC in agricultural soils through a thicker accrual of OM at the same mineral surface area within fine fractions, regardless of clay content limitations.
Review
Environmental Sciences
Peter M. Kopittke, Asmeret Asefaw Berhe, Yolima Carrillo, Timothy R. Cavagnaro, Deli Chen, Qing-Lin Chen, Mercedes Roman Dobarco, Feike A. Dijkstra, Damien J. Field, Michael J. Grundy, Ji-Zheng He, Frances C. Hoyle, Ingrid Kogel-Knabner, Shu Kee Lam, Petra Marschner, Cristina Martinez, Alex B. McBratney, Eve McDonald-Madden, Neal W. Menzies, Luke M. Mosley, Carsten W. Mueller, Daniel V. Murphy, Uffe N. Nielsen, Anthony G. O'Donnell, Elise Pendall, Jennifer Pett-Ridge, Cornelia Rumpel, Iain M. Young, Budiman Minasny
Summary: Healthy soils play a crucial role in planetary survivability, providing not only calories but also other essential functions. However, intensive agriculture is rapidly degrading soils and diminishing their capacity to deliver vital functions, highlighting the need to focus on the multiple functions of soils for long-term human welfare and the survivability of the planet.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Soil Science
Julien Guigue, Christopher Just, Siwei Luo, Marta Fogt, Michael Schloter, Ingrid Koegel-Knabner, Eleanor Hobley
Summary: This study investigated the molecular changes of particulate organic matter (POM) during decomposition in soil, revealing the roles of POM chemistry and morphology in the early stages of organic matter decomposition cascade. By combining laboratory imaging visible-near-infrared (VNIR) spectroscopy with machine learning, high-resolution mapping of the spatial distribution of molecular characteristics of organic particles in soil cores was achieved at a sub-millimetre scale.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Soil Science
Livia Urbanski, Peter Schad, Karsten Kalbitz, Jan van Mourik, Ernst Gehrt, Ingrid Koegel-Knabner
Summary: Plaggic Anthrosols are anthropogenic soils with high OC concentrations and improved soil conditions for plant growth. The addition of plaggen material increased soil volume and OC concentrations in the Ap horizons, resulting in significantly higher OC stocks in Plaggic Anthrosols compared to reference soils.
Article
Soil Science
Lydia Pohl, Angelika Koelbl, Daniel Uteau, Stephan Peth, Werner Haeusler, Luke Mosley, Petra Marschner, Rob Fitzpatrick, Ingrid Koegel-Knabner
Summary: The study demonstrated a close association between jarosite and organic matter in areas with high jarosite concentration, while the pore space near the root was almost completely filled by jarosite, encapsulating organic matter. This poor accessibility of organic matter is likely to significantly slow down the remediation processes of sulfuric soils after re-submergence.
Article
Soil Science
Franziska B. Bucka, Vincent J. M. N. L. Felde, Stephan Peth, Ingrid Koegel-Knabner
Summary: The interaction between mineral particles and soil organic matter plays a key role in the complex process of soil structure formation. The decomposition of organic matter residues by microbes stabilizes particle connections and induces aggregate formation. Different sizes of organic matter residues lead to the formation of water-stable aggregates, with microbial communities playing a crucial role in the process.
Article
Biodiversity Conservation
Simon Zech, Steffen A. Schweizer, Franziska B. Bucka, Nadja Ray, Ingrid Koegel-Knabner, Alexander Prechtel
Summary: The structure of soil aggregates plays a crucial role in the turnover of particulate organic matter (POM) and organic carbon (OC) dynamics. Dynamic rearrangement of soil aggregates influences POM-related OC turnover and can stimulate mineralization of old POM.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biodiversity Conservation
Gerrit Angst, Jan Frouz, Jan Willem van Groenigen, Stefan Scheu, Ingrid Kogel-Knabner, Nico Eisenhauer
Summary: Microbial necromass is an important component of soil organic matter (SOM), and managing its production is essential for mitigating climate change. The current consensus is that the production of microbial necromass depends on the carbon use efficiency of microorganisms and the quality of organic matter inputs. However, the role of earthworms in this process has been overlooked. Earthworms accelerate the formation of microbial necromass by creating transient hotspots with high levels of bioavailable substrate, promoting the build-up and turnover of microbial biomass. This conversion of soil organic matter into a more resistant state can help combat climate change.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Laura E. Skadell, Florian Schneider, Martina I. Gocke, Julien Guigue, Wulf Amelung, Sara L. Bauke, Eleanor U. Hobley, Dietmar Barkusky, Bernd Honermeier, Ingrid Kogel-Knabner, Urs Schmidhalter, Kathlin Schweitzer, Sabine J. Seidel, Stefan Siebert, Michael Sommer, Yavar Vaziritabar, Axel Don
Summary: Agricultural management can impact soil organic carbon stocks, with the depth to which these impacts reach remaining uncertain. It is crucial to consider depth effects in order to accurately assess changes in SOC stocks, particularly when evaluating carbon farming measures that are increasingly important in the face of climate change.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Review
Agronomy
Wulf Amelung, Ni Tang, Nina Siebers, Michaela Aehnelt, Karin Eusterhues, Vincent J. M. N. L. Felde, Georg Guggenberger, Klaus Kaiser, Ingrid Koegel-Knabner, Erwin Klumpp, Claudia Knief, Jens Kruse, Eva Lehndorff, Robert Mikutta, Stephan Peth, Nadja Ray, Alexander Prechtel, Thomas Ritschel, Steffen A. Schweizer, Susanne K. Woche, Bei Wu, Kai U. Totsche
Summary: The functions of soils are closely related to their pore space and biogeochemical interfaces. The study of soil microaggregates can provide insights into their structure and functions. Advanced techniques allow us to assess the size, composition, and porosity of microaggregates and explore their role in element cycling. However, these techniques have specific requirements and limitations in sample preparation and analysis.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2023)
Article
Soil Science
Noelia Garcia-Franco, Roswitha Walter, Martin Wiesmeier, Luis Carlos Colocho Hurtarte, Bernd Josef Berauer, Vincent Buness, Marcus Zistl-Schlingmann, Ralf Kiese, Michael Dannenmann, Ingrid Kogel-Knabner
Summary: The study reveals that the storage of soil organic carbon (SOC) in alpine and prealpine grasslands is related to soil aggregation, with factors such as elevation and soil composition influencing the distribution and fixation of organic carbon. Earthworms play different roles in different elevation zones, contributing to the formation of soil aggregates in grassland soils.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Ecology
Irina Tanuwidjaja, Cordula Vogel, Geertje J. Pronk, Anne Scholer, Susanne Kublik, Gisle Vestergaard, Ingrid Kogel-Knabner, Mirna Mrkonjic Fuka, Michael Schloter, Stefanie Schulz
Summary: Nutrient turnover in soils is influenced by soil properties, particularly clay mineral composition. This study found that microorganisms in soils with different clay mineral compositions developed different strategies to access phosphorus, leading to similar total phosphorus concentrations. Genes related to phosphate uptake and utilization were more abundant in montmorillonite soil, indicating more effective phosphorus acquisition and utilization.