Article
Agronomy
Zhenyu Yang, Ying Sha, Amit Kumar, Zhiguo Yu, Junjie Lin, Yan Lei
Summary: Degradable plastics made from plant materials can potentially supplement soil organic carbon (SOC) and act as a substitute for traditional plastics. However, these degradable microplastics can also contribute to SOC loss through priming effects, due to their high microbial availability and nitrogen deficiency. Therefore, it is important to further investigate the feedback relationship between degradable microplastics and soil carbon pools.
Article
Soil Science
Yuan Li, Chuancheng Fu, Lin Zeng, Qian Zhou, Haibo Zhang, Chen Tu, Lianzhen Li, Yongming Luo
Summary: This study found that different land-use types and soil properties influence the storage, stabilization mechanisms, and sources of organic carbon (OC) in topsoil and subsoil. The transition from wetland to farmland affects the accumulation of OC, and different soil layers exhibit distinct distributions and stabilization mechanisms of OC. The red clay layer in the subsoil is capable of stabilizing both fresh and aged OC, contributing to the stratification of OC in the soil profile.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2021)
Article
Environmental Sciences
Junyan Xu, Junli Liu, Qinglin Fu, Ming Zhang, Bin Guo, Hua Li, Xiaodong Chen, Gaoyang Qiu
Summary: Basalt weathering promotes the stabilization of soil inorganic carbon, while kaolinite has the most pronounced impact on the stabilization of soil organic carbon, resulting in a significant increase in soil net carbon balance.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Biodiversity Conservation
Markus Lange, Nico Eisenhauer, Hongmei Chen, Gerd Gleixner
Summary: Soils play a crucial role in ecosystem functioning and service provisioning. Plant diversity has positive effects on soil organic matter, but most studies have focused on topsoil and long-term studies are limited. This study investigated the impacts of plant diversity on soil carbon and nitrogen concentrations and stocks, and found that higher plant diversity increased carbon and nitrogen storage, particularly in the topsoil. The effects of plant diversity on soil organic matter became stronger over time and extended to subsoil layers.
GLOBAL CHANGE BIOLOGY
(2023)
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
Environmental Sciences
Ninghui Xie, Tingting An, Jie Zhuang, Mark Radosevich, Sean Schaeffer, Shuangyi Li, Jingkuan Wang
Summary: In soils with high initial SOM levels, plant residue carbon is more efficiently utilized by microorganisms, potentially promoting soil organic matter formation. However, the addition of root residues may have negative impacts on soil organic matter in both low and high initial SOM level soils.
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
Plant Sciences
Qiufang Zhang, Jiguang Feng, Jian Li, Ching-Yu Huang, Yawen Shen, Weixin Cheng, Biao Zhu
Summary: This study combines two experiments and a meta-analysis to investigate the priming effect (PE) of soil organic carbon (SOC) and its relationship with SOC stability. The results show that the PE increases with the prolongation of soil preincubation, indicating that stable SOC is more vulnerable to PE compared to labile SOC. The meta-analysis supports this finding and reveals that soil C availability plays a crucial role in regulating the difference in PE between labile and stable SOC. These findings highlight the importance of considering the vulnerability of stable SOC to priming in future studies on SOC cycling and global change.
Article
Soil Science
Nicholas O. E. Ofiti, Cyrill U. Zosso, Jennifer L. Soong, Emily F. Solly, Margaret S. Torn, Guido L. B. Wiesenberg, Michael W. Schmidt
Summary: The study found that +4 degrees C whole-soil warming significantly impacted the quantity and quality of SOM, leading to divergent responses in different soil depths. The warming increased the accumulation of plant-derived n-alkanes in deep subsoils, but at the expense of plant- and microorganism-derived fatty acids, indicating accelerated microbial decomposition of plant-derived inputs with warming.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Soil Science
Andrea Jilling, Marco Keiluweit, Jessica L. M. Gutknecht, A. Stuart Grandy
Summary: Root exudates influence the stability of mineral-associated organic matter (MAOM) in soil, causing carbon and nitrogen release through direct and indirect pathways, which significantly impact nutrient availability for microbes and plants.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Zachary Malone, Asmeret Asefaw Berhe, Rebecca Ryals
Summary: Organic matter amendment is used to improve soil quality in agricultural and urban settings, including supporting local food production and reclaiming disturbed soils in urban regions. Compost and biochar had the greatest improvement on soil organic matter content, while biosolids had greater nutrient benefits. The application of organic matter amendments also improved chemical and physical soil quality parameters. However, there are still gaps in the literature regarding the effects of amendments in urban gardens, soil depth greater than 30 cm, and the persistence of soil organic matter.
JOURNAL OF CLEANER PRODUCTION
(2023)
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
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
Ecology
Qinghui Yu, Zixu Zhang, Yuan He, Ming Hao, Guifang Wang, Xingjian Dun, Qicong Wu, Peng Gao
Summary: This study investigated the impact mechanism of changes in soil properties on the priming effect (PE) after vegetation restoration. The contribution of different turnover rates of carbon pools to the PE was also explored. The results showed that the secondary shrub (SB) mainly enhanced the PE by increasing soil fungal diversity and mineralization of particulate organic carbon (POC). This increase in PE may lead to an increase in soil carbon emissions.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2023)
Article
Soil Science
Changfu Huo, Junyi Liang, Weidong Zhang, Peng Wang, Weixin Cheng
Summary: This study used meta-analysis and boosted regression tree analysis to evaluate the relative contribution of multiple drivers to the priming effect (PE) on fast and slow soil organic carbon (SOC) pools. The results showed larger variability of PE in the fast SOC pool. Important drivers of PE for the fast SOC pool included soil total nitrogen content, substrate C:N ratio, soil moisture, soil clay content, soil pH, substrate addition rate, and SOC content. For the slow SOC pool, soil pH and soil total nitrogen content substantially explained the variation in PE.
Article
Environmental Sciences
Bouchra El Hayany, Loubna El Fels, Marie-France Dignac, Katell Quenea, Cornelia Rumpel, Mohamed Hafidi
Summary: The study aimed to characterize the co-composting process of sewage sludge and green waste mixtures, focusing on physicochemical parameters and organic matter biodegradation. Results showed high compost maturity of the three co-composting mixtures after 200 days. Pyrolysis-GCMS analysis revealed different evolution of compound classes during composting, suggesting specific new ratios of peak areas to evaluate compost maturity.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Plant Sciences
Rodrigo Neculman, Francisco Matus, Roberto Godoy, Maria de la Luz Mora, Cornelia Rumpel
Summary: The experiment showed that microbial activity is lower in the subsoils of Andisols, with decreased SOC persistence at depth. While native SOC mineralization was observed in subsoil horizons after the addition of labile organic carbon and nutrients, the topsoils did not display this behavior, indicating differences in carbon turnover rates between top- and subsoil horizons. This suggests that the physicochemical soil characteristics evolving during pedogenesis play a crucial role in controlling SOC stabilization and destabilization processes in Andisols under temperate old-growth rain forests.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2021)
Article
Agronomy
Thuy Thu Doan, Phimmasone Sisouvanh, Thanyakan Sengkhrua, Supranee Sritumboon, Cornelia Rumpel, Pascal Jouquet, Nicolas Bottinelli
Summary: Organic amendments such as compost and biochar were found to improve soil organic carbon content and enhance soil chemical properties, particularly for sandy soils in Thailand. However, the combination of both amendments may reduce nutrient availability in the soil.
Article
Agronomy
Marie-Liesse Aubertin, Cyril Girardin, Sabine Houot, Cecile Nobile, David Houben, Sarah Bena, Yann Le Brech, Cornelia Rumpel
Summary: Adding biochar to compost as a soil amendment is increasingly popular, but little is known about the evolution of material properties of biochar-compost mixtures after exposure to physical weathering. This study found that biochar-compost interactions can reduce mass loss and retain fixed carbon, leading to positive effects on plant growth. As weathering progresses, carbon mineralization of biochar-compost mixtures increases, potentially benefiting plant growth.
Article
Soil Science
Thao Pham, Cornelia Rumpel, Yvan Capowiez, Pascal Jouquet, Celine Pelosi, Anne Pando, Hanane Aroui Boukbida, Nicolas Bottinelli
Summary: This study used MIR spectroscopy and DAPC to investigate whether the biogeochemical composition of earthworms is determined by their species belonging or the soil they inhabit. The results showed that MIR spectra of earthworms varied according to species and sampling site, and were influenced by the properties of the soil ingested during an incubation experiment. DAPC allowed for accurate identification of earthworm species, with a mean accuracy of 78%.
APPLIED SOIL ECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
N. Bottinelli, J. L. Maeght, R. D. Pham, C. Valentin, C. Rumpel, Q. Pham, T. T. Nguyen, D. H. Lam, A. D. Nguyen, T. M. Tran, R. Zaiss, P. Jouquet
Summary: The research showed that earthworms contribute to soil generation and counteract the effects of soil erosion through their cast forming activity. In the studied catchment, there was a high and variable production of casts, which helped reduce soil erosion.
Article
Ecology
Esther Guillot, Isabelle Bertrand, Cornelia Rumpel, Claudia Gomez, Didier Arnal, Josiane Abadie, Philippe Hinsinger
Summary: Alley cropping agroforestry systems were found to improve soil quality compared to monocropping systems, especially in terms of microbiological soil quality indicators. The introduction of tree rows in the system led to spatial heterogeneity in chemical indicators, microbial biomass, activities, and community structure at the plot scale. The overall soil quality index of the entire alley cropping plot significantly increased relative to the monocropping plot after 21 years of agroforestry practice.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
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
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
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
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)
