Article
Agronomy
Shuang Zhou, Junjie Lin, Peng Wang, Ping Zhu, Biao Zhu
Summary: The study found that root exudates can activate different stages of soil carbon pools, with resistant soil carbon being more susceptible to activation than active soil carbon. Among the tested exudates, oxalic acid induced a stronger activation effect compared to glucose and glycine.
Article
Forestry
Changfu Huo, Jiayu Lu, Liming Yin, Peng Wang, Weixin Cheng
Summary: Rhizosphere effects (REs) of mature trees in natural ecosystems were investigated in this study. The study found that REs had significant positive effects on soil processes, soil microbial biomass, enzyme activities, and soil chemical properties across altitudinal sites. The magnitude of ecosystem-level REs on C-min and net N-min were relatively high and increased with altitude. The results suggest the importance of incorporating REs into land C and N models.
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
Plant Sciences
Yike Wang, Maki Asano, Weifan Gong, Qi Jiang, Geer Teni, Kenji Tamura
Summary: The recovery rates of rare earth element (REE) oxides used as tracers for soil aggregate dynamics are influenced by REE oxide types, labeling methods, and sieving methods. This study optimized the combination of labeling and sieving methods for REE oxides as tracers for Andisols and examined the distribution of REE oxides in soil aggregates. The results showed that the labeling methods and sieving methods significantly impacted the recovery rates of REE oxides, and a linear relationship was observed between the predicted and measured aggregate size proportions.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Environmental Sciences
Jin Hua Li, Yong Wei Han, Lu Feng Ye, Hao Dan Deng, Xin Ting Gao, Andrey V. V. Soromotin, Yakov Kuzyakov, Johannes M. H. Knops, Lynette K. K. Abbott
Summary: The priming effects of soil organic matter (SOM) decomposition influenced by fertilizers affect carbon balance and nutrient release. Nitrogen (N) and phosphorus (P) limitation in Tibetan meadows can retard SOM decomposition, but N and P fertilization can alleviate this limitation and induce priming effects. P fertilization has the highest priming effect and the lowest SOM storage.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Geosciences, Multidisciplinary
Marcus Schiedung, Axel Don, Michael H. Beare, Samuel Abiven
Summary: Increasing soil organic carbon is important for mitigating global climate change. However, new plant inputs can enhance the mineralization of native soil organic carbon through positive priming, which may counteract the sequestration of new carbon. This study found that the addition of fresh root-derived carbon caused a positive priming effect on native soil organic carbon in both topsoils and subsoils. However, this effect was temporary for new topsoils and became more pronounced in buried topsoils over time.
Review
Agronomy
Maire Holz, Eric Paterson, Johanna Pausch
Summary: Soil priming significantly impacts soil N transformation and plant N availability. Future research should focus on the interactions between plant roots and their associated microbiota.
Article
Soil Science
S. Liu, J. Six, H. X. Zhang, Z. B. Zhang, X. H. Peng
Summary: The formation, stabilization, and breakdown of soil aggregates play a crucial role in the sequestration of soil organic carbon (SOC). This study reveals that residue addition decreases the turnover time of soil aggregates and affects the transfer rate between different types of aggregates. The interactions between SOC changes and soil aggregate dynamics are further influenced by residue features and soil texture.
Article
Soil Science
Shaobin Yan, Liming Yin, Feike A. Dijkstra, Peng Wang, Weixin Cheng
Summary: Plant root exudates have a significant positive priming effect on soil organic carbon decomposition, with distinct differences in the magnitude and regulators of this effect. Amino acids induce the highest priming effect, followed by simple sugars, low-molecular-weight organic acids, and phenolics. The specificity of root exudate types and multiple mechanisms play a crucial role in causing this effect. Future studies should focus on long-term experiments with continuous addition of mixed compounds to further understand the modulation of soil C decomposition by changes in root exudates.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Soil Science
Jiayu Lu, Liming Yin, Feike A. Dijkstra, Shaobin Yan, Peng Wang, Weixin Cheng
Summary: Plant traits, specifically higher rhizosphere respiration and root N concentration, play a key role in regulating the rhizosphere priming effect (RPE). Leaf traits and root morphological or architectural traits could not explain the interspecific variation in the RPE. Nitrogen fertilization affects the RPE through its interaction with plant traits and its effect on soil processes. Overall, our results highlight the importance of plant traits in predicting soil organic matter decomposition through plant-soil interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
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
Ecology
Ian D. E. A. Lidbury, Chiara Borsetto, Andrew R. J. Murphy, Andrew Bottrill, Alexandra M. E. Jones, Gary D. Bending, John P. Hammond, Yin Chen, Elizabeth M. H. Wellington, David J. Scanlan
Summary: Bacteroidetes in the plant microbiome play a significant role in pathogen suppression and phosphorus mobilisation in the rhizosphere. Their success in this niche is attributed to their constitutive phosphatase activity, unique phosphatase PafA, and induction of specific outer membrane complexes and transporters under phosphate depletion conditions. The adaptation of Bacteroidetes to the plant microbiome has led to the acquisition of adaptive genomic signatures enhancing their phosphorus scavenging capabilities.
Article
Soil Science
Hao Cui, Chaoyang Mo, Pengfei Chen, Rui Lan, Chao He, Jingdong Lin, Zhenhui Jiang, Jingping Yang
Summary: In the rhizosphere zone, the rhizosphere priming effect (RPE) can stimulate soil microbes to increase the mineralization of soil organic matter (SOM). This study monitored the turnover of carbon fractions (CF-SOC and FF-SOC) and RPEs during the growth of C4 plants (maize and sorghum) in C3 soils (paddy soil and lou soil). Positive RPEs were observed, and there was a net SOC loss in both soils at the end of cultivation. The study provides insights into C fractions and microbial control of SOC turnover during the rhizosphere processes.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Shanshan Li, Shibao Chen, Meng Wang, Xiaoqin Lei, Han Zheng, Xiaoyi Sun, Lifu Wang, Yun Han
Summary: The study found that lowering soil pe + pH values favored the transformation of crystalline Fe oxides into poorly-crystallized and organically-complexed forms, which promoted Cd accumulation and stability in paddy soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Manuel Vergara Sosa, Eva Lehndorff, Andrei Rodionov, Martina Gocke, Alexandra Sandhage-Hofmann, Wulf Amelung
Summary: A novel C-free embedding method using silica gel was introduced for water glass formation, allowing for delta C-13 and C turnover analyses in soil aggregates. Micro-scale heterogeneity in delta C-13 signals within aggregates was observed, increasing with cropping duration. This successful embedding technique enables future micro-scale C dynamic analyses in environmental samples.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Soil Science
Bo Fan, Liming Yin, Feike A. Dijkstra, Jiayu Lu, Shuai Shao, Peng Wang, Qingkui Wang, Weixin Cheng
Summary: The study found that microbial substrate availability is the most important factor influencing potential gross N mineralization (GNM), explaining 51% of its variation. There is a positive non-linear relationship between potential GNM and microbial respiration (MR), indicating their close connection, and MR alone plays a comparable role in explaining the variation in potential GNM compared to the interactive effects of multiple factors.
APPLIED SOIL ECOLOGY
(2022)
Review
Agronomy
Ruzhen Wang, Jiayu Lu, Yong Jiang, Feike A. Dijkstra
Summary: In this study, the authors expanded the conceptual framework of carbon allocation for nutrient acquisition in plants by introducing a new parameter called carbon efficiency for nutrient acquisition (CENA). They found that CENA increases with higher nutrient availability, but reaches a plateau when the availability of one nutrient increases at the expense of another. The relationship between CENA and mycorrhizal plants may differ from non-mycorrhizal plants, with CENA potentially being higher in mycorrhizal plants under low nutrient availability. Additionally, the CENA of nitrogen-fixing plants is independent of soil nitrogen availability but increases with soil phosphorus availability. The researchers conclude that these updated frameworks provide a better understanding of how plants optimize belowground carbon allocation for nutrient acquisition under varying nutrient availability conditions.
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
Environmental Sciences
Ruzhen Wang, Bahareh Bicharanloo, Enqing Hou, Yong Jiang, Feike A. Dijkstra
Summary: The interactions between nitrogen and phosphorus play a crucial role in plant growth and carbon sequestration in ecosystems. Adding phosphorus to soil increases the total nitrogen pool and accelerates nitrogen cycling processes. Additionally, phosphorus supply enhances soil organic carbon content and promotes soil carbon sequestration.
Article
Environmental Sciences
Md Rumainul Islam, Balwant Singh, Feike A. Dijkstra
Summary: Soil organic matter (SOM) plays a crucial role in the global carbon balance and climate change mitigation. Understanding the decomposition and stabilization mechanisms of SOM is important. The physicochemical adsorption of organic matter onto soil minerals is a significant process for SOM stabilization. The new integrated framework emphasizes the interplay between substrate characteristics and the abundance of active clay surfaces.
Article
Agronomy
Dechang Ji, Fan Ding, Feike A. Dijkstra, Zhaojie Jia, Shuangyi Li, Jingkuan Wang
Summary: This study reveals the effects of nitrogen fertilization, plastic film mulching, and residue type on crop residue decomposition and nutrient release. The results show that nitrogen fertilization delays the decomposition of crop residues, while plastic film mulching accelerates it. Different residue types have different effects on decomposition and nutrient release.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Agronomy
Chunlian Qiao, Xiaoguang Wang, Milad Bagheri Shirvan, Claudia Keitel, Timothy R. Cavagnaro, Feike A. Dijkstra
Summary: This study found that drought stress and interspecific competition have significant effects on carbon allocation and nitrogen uptake in legume-grass mixtures. Drought stress increases carbon allocation in legume plants, while interspecific competition increases carbon allocation per unit of nitrogen uptake.
Article
Plant Sciences
Jiayu Lu, Jinfeng Yang, Claudia Keitel, Liming Yin, Peng Wang, Weixin Cheng, Feike A. Dijkstra
Summary: This study investigated the differences in carbon efficiency for nitrogen and phosphorus acquisition between ryegrass and clover. It found that clover had higher carbon efficiency for nitrogen and phosphorus acquisition compared to ryegrass. Phosphorus fertilization increased the carbon efficiency for phosphorus acquisition but decreased the carbon efficiency for nitrogen acquisition. These findings suggest that species-specific belowground carbon allocation and nutrient uptake efficiency depend on the limiting nutrient.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Xing Yu, Claudia Keitel, Yu Zhang, Alex Njugi Wangeci, Feike A. Dijkstra
Summary: Almost half of global nitrogen fertilizer is applied to rice, wheat, and maize, but a large proportion is not directly taken up, causing detrimental effects on the environment. Fertilizer management, climate, and soil factors have important influences on nitrogen fertilizer use efficiency (REN) in these crops. Organic fertilizer and single applications generally have low values of REN. REN increases with growing season temperature for rice and wheat, but decreases for maize. Soil factors such as organic carbon content, pH, and clay content also affect REN, but this depends on the crop type.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Soil Science
Md Rumainul Islam, Balwant Singh, Feike A. Dijkstra
Summary: Microbial carbon use efficiency (CUE) plays a significant role in the decomposition and stabilisation of soil organic matter (SOM). The type of substrate and soil properties such as pH, soil organic C (SOC), and clay content affect microbial CUE. In this meta-analysis, we found that the CUE varied among different substrates and was influenced by the amount of substrate applied, clay content, soil pH, and SOC content. The CUE of glucose increased with decreasing amount of substrate applied and increasing clay content. Furthermore, an increase in soil pH and a decrease in SOC content also led to a significant increase in glucose CUE, although these relationships were relatively weak.
APPLIED SOIL ECOLOGY
(2023)
Article
Agronomy
Hana Husain, Feike A. Dijkstra
Summary: Plant residue amendments can improve soil aggregation and organic carbon content, but their effects depend on the type of plant residue and soil properties. Soils with low organic carbon content and neutral pH show greater improvement due to plant residue amendments. Both fresh and charred plant residues are effective in forming soil aggregates, but charred residues are more effective in increasing total soil organic carbon.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2023)
Article
Environmental Sciences
Chiara Pasut, Fiona H. M. Tang, Budiman Minasny, Charles R. Warren, Feike A. Dijkstra, William J. Riley, Federico Maggi
Summary: In this study, the turnover time of soil organic carbon (SOC) pools in global wetlands and the governing processes were quantified using a comprehensive process-based biogeochemical model. The results showed that SOC turnover time ranged from 1 to 1,000 years and was mainly controlled by anaerobic and aerobic respiration, as well as abiotic destabilization from soil minerals. The findings also revealed seasonal variability in SOC turnover, indicating the need for better accounting of seasonal fluctuations to estimate carbon exchanges between wetlands and the atmosphere at geographic scales.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Agronomy
Bahareh Bicharanloo, Matthias Johannes Salomon, Timothy R. Cavagnaro, Claudia Keitel, Chris Brien, Nathaniel Jewell, Bettina Berger, Thomas Lines, Feike A. Dijkstra
Summary: The study found that non-mycorrhizal plants were as successful as mycorrhizal plants in terms of N and water uptake under reduced and variable water availability. However, mycorrhizal plants showed lower water use efficiency and shoot N recovery, potentially due to their higher requirements for water and N. Non-mycorrhizal plants had greater specific root exudation, resulting in relatively greater uptake of N than P across all watering conditions.
Article
Soil Science
Shaobin Yan, Liming Yin, Feike A. Dijkstra, Peng Wang, Weixin Cheng
Summary: Plant root exudates have a significant positive priming effect on soil organic carbon decomposition, with distinct differences in the magnitude and regulators of this effect. Amino acids induce the highest priming effect, followed by simple sugars, low-molecular-weight organic acids, and phenolics. The specificity of root exudate types and multiple mechanisms play a crucial role in causing this effect. Future studies should focus on long-term experiments with continuous addition of mixed compounds to further understand the modulation of soil C decomposition by changes in root exudates.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Plant Sciences
Jinfeng Yang, Jiayu Lu, Mingqi Liu, Feike A. Dijkstra
Summary: Remobilization of carbon and nitrogen from roots and crowns to regrowing shoots is a crucial strategy for grassland plants to tolerate herbivory. The continuous remobilization of carbon and nitrogen even after plants are fully regrown has significant effects on long-term productivity and carbon sequestration.
JOURNAL OF ECOLOGY
(2023)
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)