Article
Soil Science
Paula Berenstecher, Georgina Conti, Ana Faigon, Gervasio Pineiro
Summary: Recent studies have emphasized the importance of rhizodeposition in soil organic matter (SOM) formation, but quantification in different soil fractions is still uncommon. Through a pot experiment using a dual isotope brush-labeling method, our study evaluated the effectiveness of tracing plant-derived carbon (C) and nitrogen (N) into the soil and demonstrated the significant contribution of rhizodeposition to the formation of mineral-associated organic matter (MAOM).
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Anna M. Cates, Andrea Jilling, Malak M. Tfaily, Randall D. Jackson
Summary: Understanding the effects of temperature and moisture treatments on the composition of soil organic carbon is important for C and climate change modeling. This study analyzed the chemical composition of different aggregate fractions under different temperature and moisture treatments. The results showed that the composition of organic matter varied among different fractions, and both temperature and moisture had significant effects on the abundance of different carbon compounds. Moisture had the most pronounced effect on the composition of carbon within aggregates, while temperature had a stronger influence on carbon content in the silt and clay fractions.
Article
Soil Science
Helen C. S. Amorim, Luis C. C. Hurtarte, Ivan F. Souza, Yuri L. Zinn
Summary: C:N ratios are widely used as indicators for the chemical composition and quality of soil organic matter, but their response to environmental factors is still poorly understood. This study collected data from 74 studies conducted between 1980 and 2019, covering a wide range of environmental settings, and found that soil organic carbon and total nitrogen contents were mainly controlled by macroscale climatic drivers, while soil C:N ratios were more responsive to microscale factors such as soil particle-size distribution.
Article
Geosciences, Multidisciplinary
Xiaojuan Li, Tinghui Yang, Lettice C. Hicks, Bin Hu, Xin Liu, Dandan Wei, Zilong Wang, Weikai Bao
Summary: The variation of organic matter fractions in arid and semi-arid regions along latitudinal gradients is influenced by climate and soil physicochemical factors.
Article
Soil Science
Karin Nikolaus, Judith Schellekens, Steven Mols, Boris Jansen, Maria J. I. Briones, Ellen Desie, Jean-Thomas Cornelis, Samira Absalah, Bart Muys, Karen Vancampenhout
Summary: By comparing the molecular composition and environmental significance of different soil organic matter (SOM) fractions, we found that only HA and BE fractions were successful in capturing the overall processes of soil carbon (C) dynamics. Different SOM fractions can be used complementary to each other to study the environmental and ecological effects of forest stand conversion on soil C dynamics.
Article
Plant Sciences
Ashley K. Lang, Jennifer Pett-Ridge, Karis J. McFarlane, Richard P. Phillips
Summary: Identifying the primary controls of POM and MAOM content in soils is crucial for determining future stocks of soil C and N globally. However, drivers of these soil organic matter fractions are likely to vary among ecosystems due to climate, soil type, and the composition of local biological communities.
JOURNAL OF ECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Zhiyuan Yao, Qian Xu, Yupei Chen, Na Liu, Yangyang Li, Suiqi Zhang, Weidong Cao, Bingnian Zhai, Zhaohui Wang, Dabin Zhang, Sina Adl, Yajun Gao
Summary: The study investigated the impact of introducing leguminous green manure to replace summer fallow on nitrogen distribution in soil and organic matter fractions. It found that leguminous green manure mainly expands the soil organic nitrogen pool by regulating the nitrogen content of coarse particulate organic matter and intra-microaggregate organic matter.
Article
Soil Science
Ignacio Macedo, M. Virginia Pravia, Jesus Castillo, Jose A. Terra
Summary: Research on the impact on soil quality suggests that crop-pasture rotations can maintain soil organic carbon content in the midterm, but substituting perennial pastures with other crops may lead to a reduction in particulate organic matter fractions.
SOIL & TILLAGE RESEARCH
(2021)
Article
Soil Science
Fernanda C. C. Oliveira, Gabriel W. D. Ferreira, Jennifer A. J. Dungait, Elias F. Araujo, Emanuelle M. B. Soares, Ivo R. Silva
Summary: This study indicates that retaining harvest residues and different nitrogen availability significantly affect soil organic matter pools and microbial community structure in short-rotation plantations, contributing to increased SOC concentrations and POM-C content.
SOIL & TILLAGE RESEARCH
(2021)
Article
Soil Science
Yansheng Li, Zhihuang Xie, Zhenhua Yu, Yanhong Wang, Changkai Liu, Guanghua Wang, Junjiang Wu, Jian Jin, Xiaobing Liu
Summary: The application of cattle manure significantly increases soil organic carbon storage, particularly in the top layer of soil. It also impacts microbial biomass and dissolved organic carbon concentrations, positively influencing soil fertility.
SOIL & TILLAGE RESEARCH
(2021)
Article
Environmental Sciences
Fan Ding, Dechang Ji, Kang Yan, Feike A. Dijkstra, Xuelian Bao, Shuangyi Li, Yakov Kuzyakov, Jingkuan Wang
Summary: Nitrogen fertilization and plastic film mulching have different impacts on soil organic matter, with nitrogen showing an increase in soil organic matter mainly in soil with plastic film mulching.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agriculture, Multidisciplinary
Cao Han-bing, Xie Jun-yu, Hong Jie, Wang Xiang, Hu Wei, Hong Jian-ping
Summary: The study found that organic manure (MNPK) significantly increased soil organic carbon (SOC) and total nitrogen (TN) contents, especially within the macroaggregate fractions. The unprotected C fractions were more strongly correlated with SOC increase, especially cPOM-C, suggesting that SOC sequestration mainly occurred via cPOM-C in the calcareous soil studied.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Review
Green & Sustainable Science & Technology
Florian Thomas Payen, Alasdair Sykes, Matt Aitkenhead, Peter Alexander, Dominic Moran, Michael MacLeod
Summary: The research found that adopting specific practices in vineyards can increase the rate of soil organic carbon sequestration, contributing positively to climate change mitigation.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Soil Science
Batande Sinovuyo Ndzelu, Sen Dou, Xiaowei Zhang, Yifeng Zhang
Summary: Corn straw is a significant source of carbon that can alter the accumulation and distribution of organic carbon in soil. This study investigated the chemistry of organic matter in different density fractions of soil treated with corn straw under different tillage practices. The results showed that adding corn straw increased soil organic carbon content compared to conventional tillage without straw return.
Article
Forestry
Ewa Blonska, Wojciech Prazuch, Jaroslaw Lasota
Summary: The main objective of this study was to determine the role of deadwood in the formation of soil organic matter fractions in mountain forest soils. By comparing the properties of decomposing deadwood and the soils beneath it, conclusions were drawn about the influence of deadwood on soil organic matter fractions and carbon storage in different climate conditions. Heavily decomposed deadwood had a stronger impact on soil organic matter stabilization, while the light fraction of organic matter was more sensitive to deadwood effects. The release of nutrients from decaying wood stimulated enzymatic activity in the influenced soils.
Article
Soil Science
C. Beraud, F. Piola, J. Gervaix, G. Meiffren, C. Creuze des Chatelliers, A. Delort, C. Boisselet, S. Poussineau, E. Lacroix, A. A. M. Cantarel
Summary: This study investigated the soil factors influencing the development of biological denitrification inhibition (BDI) and found that initial soil moisture, ammonium concentration, and the initial abundance of certain microbial genes play significant roles in BDI development. Additionally, the research highlighted the relevance of biotic factors in explaining BDI and proposed the use of procyanidin concentration from plant belowground system as a new proxy for measuring BDI intensity.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Yizhu Qiao, Tingting Wang, Qiwei Huang, Hanyue Guo, He Zhang, Qicheng Xu, Qirong Shen, Ning Ling
Summary: Soil microbial community coalescence, the mixing and interaction of microbial communities, has been found to enhance the stability and complexity of rhizobacterial networks, leading to improved plant health and biomass. This study investigated the effects of different degrees of bacterial community coalescence on plant disease resistance by mixing soils from healthy and diseased habitats for watermelon planting. The results showed that mixing in more healthy soil reduced the plant disease index and increased biomass by improving the stability and complexity of the rhizobacterial network. Core taxa Nitrospirillum and Singulisphaera were enriched in the rhizosphere from healthy soils and played important roles in disease suppression and regulating the positive cohesion and modularity of the networks. Overall, these findings provide insights into the potential mechanism of microbial community coalescence for improving plant microbial community function and suggest new tools for enhancing plant fitness via soil microbiota mixing.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Mengqiu He, Shending Chen, Lei Meng, Xiaoqian Dan, Wenjie Wang, Qinying Zhu, Zucong Cai, Jinbo Zhang, Pierfrancesco Nardi, Christoph Mueller
Summary: Maize genotypes directly affect gene expression and nitrogen uptake capacity. The feedback between maize genotypes and soil nitrogen transformations, as well as their regulations on nitrogen uptake capacity, have been studied. The findings suggest that maize genotypes play a central role in regulating these feedbacks, which are important for maize breeding and enhancing maize production.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Ke Shi, Jiahui Liao, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Zhengming Yan, Tingting Ren, Honghua Ruan
Summary: Through rewilding, microbial extracellular and cellular residues can continuously accumulate in soils and significantly contribute to soil organic carbon sequestration. Extracellular residues are mainly driven by fine root biomass, while cellular residues are mainly driven by soil nitrogen and organic carbon content.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Sensen Chen, Ying Teng, Yongming Luo, Eiko Kuramae, Wenjie Ren
Summary: This study comprehensively assesses the effects of NMs on the soil microbiome through a global meta-analysis. The results reveal significant negative impacts of NMs on soil microbial diversity, biomass, activity, and function. Metal NMs, especially Ag NMs, have the most pronounced negative effects on various soil microbial community metrics.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Shareen K. D. Sanders, Gerard Martinez-De Leon, Ludovico Formenti, Madhav P. Thakur
Summary: Collembolans, the diverse group of soil invertebrates, are affected by anthropogenic climate warming, which alters their diversity and density. In addition to abiotic stressors, changes in food availability, specifically the abundance of saprotrophic and mycorrhizal fungi, influence Collembola responses to climate warming. Collembolans prefer saprotrophic fungi but rely on mycorrhizal fungi when food sources are scarce. Understanding the mechanisms behind these dietary shifts in warm-dry and warm-wet soil conditions is crucial for predicting the impact of climate change on Collembola-fungal interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Wimonsiri Pingthaisong, Sergey Blagodatsky, Patma Vityakon, Georg Cadisch
Summary: A study found that mixing high-C/N ratio rice straw with low-C/N ratio groundnut stover can improve the chemical composition of the input, stimulate microbial growth, decrease the loss of residue-derived carbon in the soil, and reduce native soil carbon and nitrogen consumption.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Jiachen Wang, Jie Zhao, Rong Yang, Xin Liu, Xuyuan Zhang, Wei Zhang, Xiaoyong Chen, Wende Yan, Kelin Wang
Summary: Nitrogen is vital for ecosystem productivity, restoration, and succession processes. This study found that legume intercropping was more effective than chemical nitrogen fertilizers in promoting the complexity and stability of the soil micro-food web, as it increased microbial and nematode communities and enhanced energy flow patterns.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)