Hua Chai, Michelle C. Mack, Jie Li, Guiyao Zhou, Jing Wang, Ruiqiang Liu, Zhenggang Du, Hongyang Chen, Yanghui He, Guang Yang, Long Sun, Xuhui Zhou
{"title":"火灾严重程度强烈影响陆地生态系统中土壤酶活动:来自荟萃分析的见解","authors":"Hua Chai, Michelle C. Mack, Jie Li, Guiyao Zhou, Jing Wang, Ruiqiang Liu, Zhenggang Du, Hongyang Chen, Yanghui He, Guang Yang, Long Sun, Xuhui Zhou","doi":"10.1007/s11104-025-07552-x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Background and aims</h3><p>Fire has profound consequences for biogeochemical processes, largely mediated by soil enzyme activities (EAs). As climate-induced wildfire activity intensifies, understanding the influence of fire severity on soil EAs has become increasingly critical due to the dual role of fire in disrupting and restructuring ecosystem functions.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>In this study, a meta-analysis was conducted to assess the impact of fire severity on soil EAs with 368 field studies across 86 publications. Based on this, further analysis was conducted on the differences in soil EAs across ecosystems following varying fires severities. Additionally, the driving mechanisms of soil EAs in response to fires of different severities were explored.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The results revealed that fire severity (low, moderate, and high) was the dominant factor influencing soil EAs, with increasingly negative effects observed along the gradient low- to high-severity fires. Among ecosystem type, forest and shrubland ecosystems exhibited greater sensitivity to fire severity, whereas grasslands showed comparatively minimal response. Fire effects on soil EAs were primarily driven by fire-induced reductions in soil microbial biomass and organic matter, with soil EAs showing a significant positive correlation to both variables. Notably, moderate-severity fires were associated with post-fire recovery, with soil EAs recovering and eventually exceeding pre-fire levels.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>This study provides critical insights into how fire severity shapes soil EAs, advancing our understanding of soil functional dynamics and ecosystem recovery following fire disturbances. These findings offer a theoretical foundation for the development of ecosystem restoration strategies to mitigate the impacts of fire severity.\n</p>","PeriodicalId":20223,"journal":{"name":"Plant and Soil","volume":"22 1","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fire severity strongly shapes soil enzyme activities in terrestrial ecosystems: insights from a meta-analysis\",\"authors\":\"Hua Chai, Michelle C. Mack, Jie Li, Guiyao Zhou, Jing Wang, Ruiqiang Liu, Zhenggang Du, Hongyang Chen, Yanghui He, Guang Yang, Long Sun, Xuhui Zhou\",\"doi\":\"10.1007/s11104-025-07552-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Background and aims</h3><p>Fire has profound consequences for biogeochemical processes, largely mediated by soil enzyme activities (EAs). As climate-induced wildfire activity intensifies, understanding the influence of fire severity on soil EAs has become increasingly critical due to the dual role of fire in disrupting and restructuring ecosystem functions.</p><h3 data-test=\\\"abstract-sub-heading\\\">Methods</h3><p>In this study, a meta-analysis was conducted to assess the impact of fire severity on soil EAs with 368 field studies across 86 publications. Based on this, further analysis was conducted on the differences in soil EAs across ecosystems following varying fires severities. Additionally, the driving mechanisms of soil EAs in response to fires of different severities were explored.</p><h3 data-test=\\\"abstract-sub-heading\\\">Results</h3><p>The results revealed that fire severity (low, moderate, and high) was the dominant factor influencing soil EAs, with increasingly negative effects observed along the gradient low- to high-severity fires. Among ecosystem type, forest and shrubland ecosystems exhibited greater sensitivity to fire severity, whereas grasslands showed comparatively minimal response. Fire effects on soil EAs were primarily driven by fire-induced reductions in soil microbial biomass and organic matter, with soil EAs showing a significant positive correlation to both variables. 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Fire severity strongly shapes soil enzyme activities in terrestrial ecosystems: insights from a meta-analysis
Background and aims
Fire has profound consequences for biogeochemical processes, largely mediated by soil enzyme activities (EAs). As climate-induced wildfire activity intensifies, understanding the influence of fire severity on soil EAs has become increasingly critical due to the dual role of fire in disrupting and restructuring ecosystem functions.
Methods
In this study, a meta-analysis was conducted to assess the impact of fire severity on soil EAs with 368 field studies across 86 publications. Based on this, further analysis was conducted on the differences in soil EAs across ecosystems following varying fires severities. Additionally, the driving mechanisms of soil EAs in response to fires of different severities were explored.
Results
The results revealed that fire severity (low, moderate, and high) was the dominant factor influencing soil EAs, with increasingly negative effects observed along the gradient low- to high-severity fires. Among ecosystem type, forest and shrubland ecosystems exhibited greater sensitivity to fire severity, whereas grasslands showed comparatively minimal response. Fire effects on soil EAs were primarily driven by fire-induced reductions in soil microbial biomass and organic matter, with soil EAs showing a significant positive correlation to both variables. Notably, moderate-severity fires were associated with post-fire recovery, with soil EAs recovering and eventually exceeding pre-fire levels.
Conclusion
This study provides critical insights into how fire severity shapes soil EAs, advancing our understanding of soil functional dynamics and ecosystem recovery following fire disturbances. These findings offer a theoretical foundation for the development of ecosystem restoration strategies to mitigate the impacts of fire severity.
期刊介绍:
Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.