土壤学报2025，Vol.62Issue(3)：870-880,11.DOI:10.11766/trxb202402180071
实验增温对土壤微生物的影响:基于Meta分析
Effects of Experimental Warming on Soil Microorganisms:A Meta-Analysis
摘要
Abstract
[Objective]Microbial community plays an important role in soil ecological activities.It can regulate soil nutrient supply by changing the structure and function of the soil ecosystem.At present,the response of soil microbial community to warming and the main influencing factors are not well understood.[Method]This study collected 1 020 sets of data from 206 published domestic and foreign research literature and synthesized them to evaluate the effects of experimental warming on soil microbial community(microbial biomass,community diversity,and soil enzyme activity)using meta-analysis.The different responses of soil microbial communities to different magnitudes,durations and methods of warming,as well as planting habits and ecosystem types were evaluated and discussed.Also,the relationship between the response of soil microbial communities to warming treatment and environmental factors(annual mean precipitation,annual mean temperature,and mean altitude)was explored.[Result]It was found that experimental warming decreased the soil microbial community diversity by 6.7%,increased the activities of soil antioxidant enzymes,enzymes related to carbon(C),and nitrogen(N)conversion by 7.5%,10.8%,and 19.7%,respectively.A high magnitude of warming(≥4℃)significantly reduced soil microbial biomass and increased the activities of soil antioxidant enzymes and enzymes related to C conversion.Low-temperature increase(≤2℃)had more significant effects on soil microbial community diversity and soil enzymes related to N and phosphorus(P)conversion.Also,long-term warming(>2 years)had significant effects on soil microbial biomass,community diversity,antioxidant enzymes and enzymes related to C conversion.The responses of enzymes related to N and P conversion to medium-term warming(0.5 to 2 years)were more significant and the response of soil microorganisms to experimental warming was different among different ecosystems.Further analysis revealed that the response of enzyme activities related to P conversion to warming was positively correlated with annual mean temperature and annual precipitation.The response of soil microbial community diversity was negatively correlated with mean annual temperature,annual precipitation and mean altitude.[Conclusion]In summary,the experimental warming significantly reduced the diversity of soil microbial communities while increasing soil enzyme activity.The warming amplitude,warming duration,and ecosystem type all affect the effects of experimental warming on soil microbes.关键词
实验增温/土壤/微生物生物量/微生物群落多样性/土壤酶活性/环境因子Key words
Experimental warming/Soil/Microbial biomass/Diversity of microbial community/Soil enzyme activity/Environmental factors分类
生物科学引用本文复制引用
赵雯钰,苗润,程诚,王琪..实验增温对土壤微生物的影响:基于Meta分析[J].土壤学报,2025,62(3):870-880,11.基金项目
江苏省科技厅碳达峰碳中和专项(BE2023400)资助Supported by the Carbon Peak and Carbon Neutrality Special Project of Department of Science and Technology of Jiangsu Province,China(No.BE2023400) （BE2023400）
