Article
Soil Science
Thiago M. Inagaki, Angela R. Possinger, Steffen A. Schweizer, Carsten W. Mueller, Carmen Hoeschen, Michael J. Zachman, Lena F. Kourkoutis, Ingrid Kogel-Knabner, Johannes Lehmann
Summary: The spatial distribution of organic substrates and microscale soil heterogeneity significantly influence organic matter (OM) persistence as constraints on OM accessibility to microorganisms. However, it is unclear how changes in OM spatial heterogeneity driven by factors such as soil depth affect the relative importance of substrate spatial distribution on OM persistence.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Dedy Antony, Chris D. Collins, Joanna M. Clark, Tom Sizmur
Summary: Soils are the largest terrestrial pool of organic carbon, and the mechanisms by which SOC is stored in subsoils are affected by land use. This study found that woodland land use led to a higher content of mineral-free particulate organic matter (fPOM) in both topsoil and subsoil, while the mineral-associated organic carbon (MinOC) was proportionally higher in the subsoil under all land uses. These findings suggest that land use affects SOC protection, with woodlands containing less protected carbon.
SOIL USE AND MANAGEMENT
(2022)
Article
Environmental Sciences
Yang Wang, Yingjie Yin, Stephen Joseph, Markus Flury, Xiang Wang, Sara Tahery, Baoguo Li, Jianying Shang
Summary: The application of biochar in calcareous farmland increases the organic carbon content in both topsoil and subsoil. It also affects enzyme activity and diversity in the soil. Considering both topsoil and subsoil is important when evaluating the dynamic impacts of biochar on soil organic carbon.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Soil Science
Rounak Patra, Debasish Saha, Sindhu Jagadamma
Summary: Long-term cover-cropping and no-tillage practices can facilitate soil organic carbon accumulation and redistribution in agroecosystems. This study investigated the effects of different management practices on total SOC and SOC fractions in the soil profile using a 40-year replicated field experiment in a continuous cotton system.
SOIL & TILLAGE RESEARCH
(2022)
Article
Environmental Sciences
Wenjuan Yu, Samantha R. Weintraub, Steven J. Hall
Summary: The study found that both climate and geochemical factors play important roles in predicting SOC concentrations, especially in the generalized additive mixed model and random forest model; relationships between water availability and SOC were strongest in very dry ecosystems; and the study challenges the notion that climate is redundant after accounting for geochemistry, demonstrating that considering their nonlinearities and interactions improves spatial predictions of SOC.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Environmental Sciences
Jingwen Chen, Yuanliu Hu, Steven J. Hall, Dafeng Hui, Jianling Li, Guoyin Chen, Lianwei Sun, Deqiang Zhang, Qi Deng
Summary: Atmospheric acid deposition can affect the protection of carbon in soil by altering organo-mineral interactions. This study examined the impacts of acidification on organo-mineral interactions and soil carbon sequestration in naturally acidic tropical soils with a high content of reactive iron phases. The results showed that soil acidification increased the leaching of base cations and changed the solubility and composition of iron and aluminum phases. These changes led to an increase in iron-bound carbon and a decrease in calcium-bound carbon. The findings highlight the importance of pH-sensitive geochemical changes and the key roles of iron in regulating the response of soil organic carbon to acid deposition.
Article
Soil Science
Katharina R. Lenhardt, Hergen Breitzke, Gerd Buntkowsky, Christian Mikutta, Thilo Rennert
Summary: This study investigates the effects of the composition of short-range ordered aluminosilicates (SROAS) on the retention and distribution of dissolved organic matter (DOM) and carbon in soils and sediments. The results show that the composition of SROAS affects the adsorption capacity of DOM and the distribution of carbon components. The interaction between DOM and SROAS also affects the mineral structure and silicon abundance in the co-precipitates.
Article
Soil Science
Anna-Reetta Salonen, Helena Soinne, Rachel Creamer, Riitta Lemola, Niina Ruoho, Oona Uhlgren, Ron de Goede, Jussi Heinonsalo
Summary: Soil organic matter (SOM) is essential for sustainable agriculture, and understanding its distribution and accumulation in different soil depths is important for maintaining and increasing SOM throughout the soil profile. In this study, we investigated the distribution of organic carbon (OC) in different fractions (MAOM, POM, and DOM) in a cultivation field and an unmanaged meadow. We found that most of the soil OC was in the MAOM fraction and that soil management did not strongly affect the distribution of OC fractions. The unmanaged meadow had the highest OC stocks, highlighting the role of deep-rooting plants in sequestering OC into the soil. Additionally, we assessed the soil OC saturation state based on clay content and aluminum and iron oxides, and found that aluminum and iron oxides played a crucial role in transporting and stabilizing OC in the soil profile.
Article
Chemistry, Multidisciplinary
Mengqi Gao, Manohar Salla, Yuxi Song, Qing Wang
Summary: This study presents a molecular engineering strategy for AORFBs, in which a pair of anionic organic molecules are used as anode and cathode materials, showing excellent electrochemical stability and cycling stability. Under near-neutral conditions, the flow cell exhibits high voltage and peak power density.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Yang Wang, Stephen Joseph, Xiang Wang, Zhe H. Weng, David R. G. Mitchell, Mitchell Nancarrow, Sarasadat Taherymoosavi, Paul Munroe, Guitong Li, Qimei Lin, Qing Chen, Markus Flury, Annette Cowie, Olivier Husson, Lukas Van Zwieten, Yakov Kuzyakov, Johannes Lehmann, Baoguo Li, Jianying Shang
Summary: Biochar amendments increased total soil carbon by 71%, 182%, and 210% for B30, B60, and B90, respectively. The application of biochar at different rates significantly increased the subsoil inorganic carbon (SIC), mainly occurring in the subsoil below 1 m. The study provided critical knowledge on the impact of biochar application on carbon stocks in subsoil in the long term.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
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
Agriculture, Multidisciplinary
Zhi Liang, Esben Oster Mortensen, Chiara De Notaris, Lars Elsgaard, Jim Rasmussen
Summary: Cover crops have the potential to increase soil carbon stocks and contribute to CO2 reduction. However, there is a lack of studies on the quantification of cover crop carbon inputs, particularly in subsoil layers. This study investigated the short-term carbon inputs from cover crop mixtures in two long-term cropping systems and found that root fragments and net phyllo- and rhizodeposition were significant pools of plant carbon input.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Yuwei Liu, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Cuiting Wang, Chen Zhang, Honghua Ruan
Summary: The frequency and intensity of droughts worldwide pose challenges to the conservation of soil organic carbon. In a 3-year field experiment in a forest plantation, the impacts of drought intensities on microbial necromass at different soil depths were investigated. The results showed that the effects of drought on microbial necromass depend on microbial groups, soil depth, and drought intensity.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Agriculture, Multidisciplinary
Xie Luo, Songmei Shi, Yining Liu, Hongjun Yang, Nannan Li, Zhixin Dong, Bo Zhu, Xinhua He
Summary: Through analyzing the responses of arbuscular mycorrhizal fungi (AMF) in different soil layers under various fertilization conditions, this study found that AMF communities in the topsoil and subsoil of wheat and maize showed different diversity and composition under mineral and organic fertilization. Fertilization and factors such as available nitrogen and phosphorus in the soil significantly affected crop yield, rather than the AMF community structure.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Soil Science
Mariela Garcia Arredondo, Yilin Fang, Morris Jones, Steve Yabusaki, Zoe Cardon, Marco Keiluweit
Summary: The association between minerals and organic matter is a crucial carbon storage mechanism in soils. This study used in-situ rhizosphere microsensor and plant physiological measurements with a 3-D plant-soil reactive transport model to investigate the fate of dissolved organic carbon (DOC) in the rhizosphere, particularly its microbial consumption and interaction with Fe oxide minerals. The findings showed that a large fraction of rhizosphere DOC was rapidly immobilized each day by adsorption to Fe oxides, and microbial Fe reduction did not mobilize significant organic carbon from Fe oxides during the day. This research provides a new mechanistic modeling framework for understanding the dynamics and balance of microbial reactions and mineral interactions controlling carbon storage in soils.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Agronomy
Phimmasone Sisouvanh, Vidhaya Trelo-ges, Supat Isarangkool Na Ayutthaya, Alain Pierret, Naoise Nunan, Norbert Silvera, Khampaseuth Xayyathip, Christian Hartmann
Summary: Organic amendments are beneficial for farmers as they improve maize performance and yield, while also enhancing soil physical properties. The effects of compost and vermicompost were similar under different moisture stress conditions, with no added benefits observed when using vermicompost instead of compost.
Review
Soil Science
Na Zhang, Naoise Nunan, Penny R. Hirsch, Bo Sun, Jizhong Zhou, Yuting Liang
Summary: A healthy soil-plant continuum is crucial for sustainable agricultural development and food security. The diversity of soil microorganisms plays a vital role in nutrient cycling, plant growth promotion, and stress alleviation in agroecosystems. Utilizing modern coexistence theory can help in designing and constructing microbial communities for the biological improvement of agroecosystems, particularly in the face of challenges posed by human activities and global climate change.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Soil Science
Bruno Mbe, Olivier Monga, Valerie Pot, Wilfred Otten, Frederic Hecht, Xavier Raynaud, Naoise Nunan, Claire Chenu, Philippe C. Baveye, Patricia Garnier
Summary: This study aimed to use the Mosaic simulator to analyze carbon mineralization under different microscale environmental conditions and determine how soil structure descriptors could explain CO2 emissions.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Soil Science
Alexandre Coche, Tristan Babey, Alain Rapaport, Laure Vieuble Gonod, Patricia Garnier, Naoise Nunan, Jean-Raynald de Dreuzy
Summary: The bacterial traits in soils play a significant role in the decomposition of organic matter, but have received little attention. A bioreactive transport model was developed to investigate the interactive impacts of spatial dispersion and bacterial traits on mineralization. The study found that bacterial dispersion and traits have a substantial influence on the mineralization process of organic substances in soils.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
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
Biodiversity Conservation
Frederique Changey, Naoise Nunan, Anke M. Herrmann, Thomas Z. Lerch
Summary: Recent advances in molecular ecology have improved our understanding of soil microbial diversity and provided new indicators of soil quality. This study investigated the effect of taxonomic resolution on alpha- and beta-diversity indices of bacterial communities in response to different soil organic matter management. The results showed that higher taxonomic resolution increased the discrimination potential for beta-diversity but not for alpha-diversity indices. The relative importance of hierarchical drivers of soil microbial communities also varied depending on the taxonomic resolution. Molecular fingerprints were consistent indicators for monitoring the effect of agricultural management on beta-diversity but not on alpha-diversity. These findings contribute to the efficiency and robustness of using sequencing data in soil biodiversity monitoring.
ECOLOGICAL INDICATORS
(2022)
Article
Soil Science
Patricia Poblete-Grant, Paula Cartes, Sofia Pontigo, Philippe Biron, Maria de La Luz Mora, Cornelia Rumpel
Summary: This study investigated the effects of organic fertilizer (poultry manure compost), mineral fertilizer (rock phosphate), and their mixture on the transfer of organic carbon (OC) from plants to soil. It found that poultry manure compost and its mixture with rock phosphate increased root biomass and root-derived OC transfer to active pools compared to rock phosphate alone. Soil amended with poultry manure compost also had higher microbial biomass contents than soil with mineral fertilization.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Editorial Material
Environmental Sciences
Abad Chabbi, Cornelia Rumpel, Frank Hagedorn, Marion Schrumpf, Philippe C. Baveye
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Soil Science
Louis J. P. Dufour, Anke M. Herrmann, Julie Leloup, Cedric Przybylski, Ludovic Foti, Luc Abbadie, Naoise Nunan
Summary: This study investigates how the properties of readily available organic matter affect the metabolic activity of microbial communities in soils. The findings suggest that microbial communities preferentially use organic matter with a high potential energetic return on investment.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Gabin Colombini, Cornelia Rumpel, Sabine Houot, Philippe Biron, Marie -France Dignac
Summary: The input of microplastics into agroecosystems, especially through compost application, is a major concern. This study evaluates the impact of different composts derived from urban waste on the quantity of coarse microplastics in soils. The results indicate that composts made from municipal solid waste result in the highest quantity of plastic particles in soils, highlighting the need to reduce plastic use and improve waste sorting.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
I. Nogues, C. Rumpel, M. Sebilo, V. Vaury, R. Moral, M. A. Bustamante
Summary: This study assessed the fate of C and N compounds during the composting process of cattle and pig slurry anaerobic digestates. It found that there was no isotopic discrimination during composting, indicating the previous stabilization of the manure. Additionally, the composts increased N values and delta N-15 soil values, and the plants grown on compost-amended soils showed higher N and delta N-15 abundance compared to control and inorganic fertilized plants. Overall, the delta N-15 abundance of anaerobic digestate composts could be a useful tool for detecting the type of fertilizer used in agricultural production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Microbiology
Eulalia Sans-Serramitjana, Carla Gallardo-Benavente, Francisco Melo, Jose M. Perez-Donoso, Cornelia Rumpel, Patricio Javier Barra, Paola Duran, Maria de La Luz Mora
Summary: This study examined the biosynthesis and characterization of selenium nanoparticles (SeNPs) using two endophytic selenobacteria. The results showed that both strains were suitable for producing SeNPs with different properties. The SeNPs were surrounded by the proteins, lipids, and polysaccharides of bacterial cells, and the functional groups present in SeNPs from one strain were higher in number than in the other strain. The findings support the potential of these endophytic strains as biocatalysts for producing high-quality Se-based nanoparticles, and future efforts should focus on evaluating their bioactivity and determining how the different features of each SeNP modulate their biological action and stability.
Article
Environmental Sciences
Francisco Ruiz, Jose Lucas Safanelli, Fabio Perlatti, Mauricio Roberto Cherubin, Jose A. M. Dematte, Carlos Eduardo Pellegrino Cerri, Xose Luis Otero, Cornelia Rumpel, Tiago Osorio Ferreira
Summary: It is estimated that if all legal active mining sites in Brazil are exploited over the next decades, it could result in the emission of 2.55 Gt CO2eq, largely due to the loss of vegetation and soil. To offset these emissions, the construction of soils from mine and other wastes (Technosols) is proposed, which could potentially offset up to 60% (1.00 Gt CO2eq) of soil-related CO2 emissions and restore important soil-related ecosystem services.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Imen Louati, Naoise Nunan, Kevin Tambosco, Cecile Bernard, Jean-Francois Humbert, Julie Leloup
Summary: This study investigated the correlation between bacterioplankton composition and phytoplankton dynamics in a shallow lake known for recurrent cyanobacterial blooms. Changes in bacterial community occurred before the development of the phytoplankton bloom, suggesting that the environmental changes were first sensed by the bacterial community. The study also highlighted the relevance of spatial organization within different microenvironments in shaping these communities.
Article
Soil Science
Francisco Ruiz, Cornelia Rumpel, Marie-France Dignac, Francois Baudin, Tiago Osorio Ferreira
Summary: In this study, the biological and thermal stability of mixed-nature soil organic matter (SOM) derived from grass litter and kerogen was assessed. The results showed that the chemical recalcitrance of kerogen compounds had a significant impact on short-term biological stability and was strongly correlated with thermal stability indices.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
