Soil Biology & Biochemistry最新文献

{"title":"Sugar palm controls on soil nitrous oxide production during and after severe drought in an experimental tropical rain forest","authors":"Holly M. Andrews,Joseph R. Roscioli,Juliana Gil-Loaiza,Meara Clark,Malak M. Tfaily,Linnea K. Hernandez,Joost van Haren,Katerina Dontsova,Joanne H. Shorter,S. Nemiah Ladd,Christiane Werner,Laura K. Meredith","doi":"10.1016/j.soilbio.2026.110332","DOIUrl":"https://doi.org/10.1016/j.soilbio.2026.110332","url":null,"abstract":"","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"26 1","pages":"110332"},"PeriodicalIF":9.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149208999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Higher Intrinsic Priming Potential in Arctic Tundra Soils During the Cold Season than Growing Season","authors":"Chenxin Feng,Emil Alexander Sherman Andersen,Stephanie Turner,Dominik Merges,Niki Ines Walter Leblans,Josefine Walz,Sara Hallin,Johan Olofsson,Ellen Dorrepaal","doi":"10.1016/j.soilbio.2026.110337","DOIUrl":"https://doi.org/10.1016/j.soilbio.2026.110337","url":null,"abstract":"","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"235 1","pages":"110337"},"PeriodicalIF":9.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microscale quantification of fungal-mediated water redistribution in unsaturated soil pore networks","authors":"Shane M. Franklin,Tomás A. Rush,Scott T. Retterer,Anand Seethepalli,Jennifer L. Morrell-Falvey","doi":"10.1016/j.soilbio.2026.110340","DOIUrl":"https://doi.org/10.1016/j.soilbio.2026.110340","url":null,"abstract":"","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"33 1","pages":"110340"},"PeriodicalIF":9.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calibrating Soil Nitrogen Turnover in Biogeochemical Models with 15N Tracing Data","authors":"Kathrin Fuchs, Clemens Scheer, David Kraus, Andrew Smerald, Fawad Khan, Benjamin Wolf","doi":"10.1016/j.soilbio.2026.110320","DOIUrl":"https://doi.org/10.1016/j.soilbio.2026.110320","url":null,"abstract":"Process-based biogeochemical models dynamically simulate the coupled Carbon (C), nitrogen (N), and water cycles in plant-soil-atmosphere systems, making them useful for understanding and upscaling the effects of management and climate change on N flows in agricultural systems. These models use conceptual pools such as plant tissue, microbial biomass and organic matter with different decomposability, which exchange material according to the selected model structure. The evaluation of model design and the validation of internal turnover fluxes is challenging as datasets typically include only yields and measurements of trace gases leaving the system, with limited information on how specific C and N pools contribute to distinct flows. Regarding the N cycle in particular, microbial immobilization and mineralization have remained largely unconstrained in biogeochemical models. Isotopically enriched, <ce:sup loc=\"pre\">15</ce:sup>N-labeled, mineral fertilizer or slurry can be used as a tracer to quantify N processes and transformations, including plant uptake, soil retention, and losses of fertilizer N. Here, we combine data from a <ce:sup loc=\"pre\">15</ce:sup>N-labelling experiment with the isotope model SIMONE to better constrain N turnover in the biogeochemical model LandscapeDNDC. The results show that LandscapeDNDC overestimated the allocation of applied fertilizer N into the plants while underestimating the retention in the soil pool and contribution to N loss pathways. At the same time, the model underestimated uptake of N from mineralized soil organic matter (SOM). Assuming that the internal mineralization-immobilization-humification cycle was underestimated, the corresponding turnover rates were calibrated based on fertilizer <ce:sup loc=\"pre\">15</ce:sup>N recovery in plants and soil. This calibration not only improved the simulation of plant uptake of <ce:sup loc=\"pre\">15</ce:sup>N for all seasons – the original main objective - but also led to better agreement with mineralization and immobilization rates inferred from <ce:sup loc=\"pre\">15</ce:sup>N measurements in soil and plants. Our results demonstrate how the combination of isotope modeling with <ce:sup loc=\"pre\">15</ce:sup>N recovery data can be used to effectively constrain biogeochemical process parameters.","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"42 1","pages":"110320"},"PeriodicalIF":9.7,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to ‘Continuous acceleration of soil heterotrophic respiration over 16 years of soil warming in a sub-boreal forested peatland’ [Soil Biology and Biochemistry volume 221 (2026) 110212]","authors":"Ruiqi Ma, Kentaro Takagi, Toshiaki Kondo, Jun Koarashi, Mariko Atarashi-Andoh, Kobayashi Makoto, Maricar Aguilos, Kira Ryhti-Laine, Lifei Sun, Yoshiyuki Takahashi, Takashi Hirano, Naishen Liang","doi":"10.1016/j.soilbio.2026.110237","DOIUrl":"https://doi.org/10.1016/j.soilbio.2026.110237","url":null,"abstract":"","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"12 1","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148384534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil microbial metabolic strategies and the imbalance between available phosphorus and nitrogen controls the root exudate-induced priming effect by grassland tumbleweed (Cleistogenes squarrosa and Saposhnikovia divaricata) root exudates","authors":"Guisen Yang ,&nbsp;Jirui Gong ,&nbsp;Shangpeng Zhang ,&nbsp;Ruijing Wang ,&nbsp;Tong Wang ,&nbsp;Yaohong Yu ,&nbsp;Qin Xie ,&nbsp;Zihe Zhang","doi":"10.1016/j.soilbio.2026.110116","DOIUrl":"10.1016/j.soilbio.2026.110116","url":null,"abstract":"<div><div>Root exudate-induced priming effect (<em>PE</em>) is a key process that regulates soil organic carbon (<em>SOC</em>) turnover. Our comprehensive study provides mechanistic insights into how soil microbial community structure and its metabolic characteristics for carbon and nutrients of carbon and nutrients regulate <em>PE</em> induced by root exudates from grassland tumbleweeds. We investigated these processes through controlled incubation experiments with soils from four grazing intensities (grazing exclusion vs. light, moderate, and heavy grazing) and exudates obtained from two tumbleweeds (<em>Cleistogenes squarrosa</em> and <em>Saposhnikovia divaricata</em>) and the dominant perennial <em>Leymus chinensis</em>. The tumbleweed exudates consistently produced <em>PE</em> that averaged 45.9% lower per unit exudate carbon than with <em>L. chinensis</em> across grazing intensities, primarily due to their substantially higher organic acid content (particularly fumaric and oxalic acids), which suppressed Gram-negative and Gram-positive bacteria biomass, thereby alleviating the soil available phosphorus (P) and nitrogen (N) radio imbalance. <em>PE</em> had pronounced temporal dynamics, transitioning from an initial phase (day 3) characterized by high microbial metabolism and minimal <em>PE</em>, through an intermediate stage (day 10) of positive <em>PE,</em> to a final phase (day 21) of strongly positive <em>PE</em> as labile carbon substrates were depleted and microbial communities progressively shifted from bacterial-dominated to fungal-dominated, thereby intensifying nutrient mining for nitrogen (N) and phosphorus (P). The available P: N imbalance consistently increased <em>PE</em> throughout the incubation period, with progressively strengthening effects over time, ultimately emerging as the primary regulator of <em>SOC</em> mineralization. These findings establish that tumbleweeds create distinctive “low-<em>PE</em> patches” through exudate-mediated microbial community restructuring and stoichiometric balance regulation, thereby offering a promising nature-based solution for increasing soil carbon sequestration and facilitating ecological restoration in degraded grassland ecosystems.</div></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"216 ","pages":"Article 110116"},"PeriodicalIF":10.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146184364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Warming increases viral diversity and the relative abundance of virulent viruses in deep soils","authors":"Yiqing Lv ,&nbsp;Xiaomin Fan ,&nbsp;Xiangyu Fan ,&nbsp;Wenkuan Qin ,&nbsp;Xudong Wang ,&nbsp;Xin Sun ,&nbsp;Biao Zhu ,&nbsp;Linwei Wu","doi":"10.1016/j.soilbio.2026.110128","DOIUrl":"10.1016/j.soilbio.2026.110128","url":null,"abstract":"<div><div>Viruses are diverse and functionally significant members of the soil community, but how they respond to climate warming remains underexplored, especially in deeper soil layers. Here, we utilized a whole-soil-profile warming experiment (∼4 °C above ambient across the top 1 m of soil) in an alpine grassland to investigate how warming influences soil viral diversity and potential activity across different soil depths. Through the integration of short- and long-read metagenomics with viromics, we discovered numerous novel viruses. Additionally, our findings revealed that after 5 years of warming, viral diversity decreased in surface soils but increased in deeper soils, mirroring but accentuating changes in host diversity. Warming increased the relative abundance of virulent viruses, possibly due to the alleviation of nutrient limitations. This study revealed the depth-dependent responses of soil viruses to climate warming, suggesting that deeper soils may become hotspots for viral diversity and activity under warming scenarios.</div></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"216 ","pages":"Article 110128"},"PeriodicalIF":10.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147279063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diversity and activity of group 5/1h high-affinity H2 oxidizing bacteria is non-responsive to pH","authors":"Lijun Hou ,&nbsp;Philippe Constant ,&nbsp;Joann K. Whalen","doi":"10.1016/j.soilbio.2026.110111","DOIUrl":"10.1016/j.soilbio.2026.110111","url":null,"abstract":"<div><div>Biological high-affinity H₂ uptake in soil is the largest global sink for atmospheric H₂. Soil pH often influences soil biological activity but the impact of pH on high-affinity H₂ oxidizing bacteria (HOB) was not confirmed. We compared the activity and diversity of group 5/1h HOB in agricultural and forest soils across a gradient from pH 4 to pH 8. The potential H₂ uptake activity was approximately 2 times higher in agricultural soil than in forest soil across the pH gradient. Both H₂ oxidizing activity and HOB community structure were non-responsive to pH adjustment in these soils, and no pH optima was observed. Greater H₂ oxidizing activity was associated with higher iron content and lower carbon and nitrogen concentrations in soil. Catabolic repression of HOB was likely triggered when more organic carbon was present, due to the mixotrophic metabolism in the HOB community. A few <em>hhyL</em> genotypes (5%) responded to pH manipulation, but preference for acidic or alkaline pH was not consistent at the HOB taxonomic level. We conclude that pH preference is not an ecological trait that predicts group 5/1h HOB distribution in soil.</div></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"216 ","pages":"Article 110111"},"PeriodicalIF":10.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating ecomorphological groups into compound-specific isotope analysis of amino acids refines trophic niches of forest soil macrofauna","authors":"André Junggebauer ,&nbsp;Ronja Wenglein ,&nbsp;Stefan Scheu ,&nbsp;Melanie M. Pollierer","doi":"10.1016/j.soilbio.2026.110126","DOIUrl":"10.1016/j.soilbio.2026.110126","url":null,"abstract":"<div><div>Soil macrofauna detritivores and predators play central roles in decomposition, nutrient cycling and predator – prey interactions, but resolving their trophic positions (TPs) and basal resource use in different forest types has long been challenging due to methodological constraints. Compound-specific isotope analysis of amino acids (CSIA-AA) overcomes these challenges by quantifying the contributions of bacteria, fungi and plants to consumer diets, and by providing baseline-independent trophic position estimates. However, most recent CSIA-AA studies of soil animals analyzed trophic niches only at high-rank taxonomic levels, which may obscure trophic variations among species that differ in morphology and microhabitat use. Here, we collected 19 species from near-natural beech forests and spruce monocultures in Germany, representing major high-rank taxonomic groups of detritivores (Lumbricidae, Diplopoda, Isopoda) and predators (Chilopoda). Using CSIA-AA we quantified TPs and basal resource contributions from bacteria, fungi and plants, and compared patterns across high-rank taxonomic groups, ecomorphological groups (high-rank taxonomic groups subdivided by body size, body shape and vertical distribution in soil) and species. Ecomorphological groups included Epigeic, Endogeic and Anecic Lumbricidae, Slender and Globular Diplopoda, Small and Large Isopoda, and Litter and Soil Predators in Chilopoda. TPs and basal resource use varied little between forests but differed strongly among ecomorphological groups. In Lumbricidae, TPs increased from Anecic (1.7) to Epigeic (2.1) to Endogeic (2.5), accompanied by shifts in bacterial and plant contributions. Slender Diplopods occupied higher TPs than Globular Diplopods (2.8 vs. 2.5), while Small Isopods reached TPs similar to predators (3.5). Among Chilopoda, Litter Predators had higher TPs and incorporated more bacterial resources (41%) than Soil Predators (17%), suggesting differences in prey use between litter and soil. Hierarchical models confirmed that ecomorphological groups explained substantially more variation in trophic positions and resource use than high-rank taxonomic groups, while species identity added little explanatory power, except for Lumbricidae and Chilopoda. Our findings indicate that trophic niches of soil macrofauna are more linked to morphology and microhabitat preferences than to forest type. Therefore, assigning soil macrofauna taxa to ecomorphological groups represents a powerful approach for future CSIA-AA studies that compensates for information loss when analyzing high-rank taxonomic groups rather than species due to biomass restrictions.</div></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"216 ","pages":"Article 110126"},"PeriodicalIF":10.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146184363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distinct successional strategies and assembly dynamics of soil microbial community utilizing carbon derived from plant shoot versus root residues","authors":"Peng He ,&nbsp;Jianing Wang ,&nbsp;Xuewei Wang ,&nbsp;Tengfei Ma ,&nbsp;Ning Ling","doi":"10.1016/j.soilbio.2026.110122","DOIUrl":"10.1016/j.soilbio.2026.110122","url":null,"abstract":"<div><div>Soil organic carbon (SOC) dynamics is strongly influenced by plant residue inputs, yet the microbial mechanisms—particularly the identity, activity, and temporal dynamics of microbial communities assimilating shoot-versus root-derived carbon (C)—remain poorly understood. This study employed DNA-based stable isotope probing (DNA-SIP) combined with amplicon sequencing to trace the incorporation of ¹³C-labeled shoot and root residues from alfalfa into soil microbial communities across a time series of 1, 7, 14, 30, and 48 days. We identified distinct bacterial and fungal taxa actively involved in residue decomposition and classified their temporal response strategies as rapid, intermediate, or delayed based on peak activity. Shoot and root residues differed in elemental stoichiometry, which contributed to divergent bacterial and fungal responses during residue-derived C assimilation. Fungal community composition was more strongly influenced by residue type than bacterial communities. Bacterial assembly was predominantly stochastic, with rapid responders (e.g., <em>Lysobacter</em> and <em>Streptomyces</em>), exhibiting conserved functional potentials in nitrogen (N) assimilation and phosphorus (P) cycling, dominating both residue types. In contrast, fungal communities were governed primarily by deterministic processes and exhibited distinct residue-specific metabolic strategies: shoot C assimilation was driven by rapid, often pathogenic taxa (e.g., <em>Fusarium</em>), whereas root C assimilation favored intermediate and delayed saprotrophic and symbiotic fungi (e.g., <em>Orbilia</em> and <em>Cochlonema</em>). These findings suggest that shoot and root residue quality (e.g., elemental stoichiometry) selects for distinct successional strategies and functional traits in microbial decomposers, offering a mechanistic basis for predicting residue-specific contributions to soil C and nutrient cycling.</div></div>","PeriodicalId":21888,"journal":{"name":"Soil Biology & Biochemistry","volume":"216 ","pages":"Article 110122"},"PeriodicalIF":10.3,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}