水土保持学报2025，Vol.39Issue(5)：13-23,32,12.DOI:10.13870/j.cnki.stbcxb.2025.05.002
菌根对土壤呼吸影响的研究进展
Progress in the Study of the Effects of Mycorrhiza on Soil Respiration
摘要
Abstract
[Objective]Mycorrhiza,as a bridge connecting plants and soil,play a crucial role in soil carbon(C)budget.They absorb mineral nutrients from the soil in exchange for C fixed by plant photosynthesis,while simultaneously contributing to soil C loss through respiration.Although the roles of mycorrhiza in soil C input,C stability,and C sequestration are relatively well understood,knowledge of the effects of mycorrhiza on soil respiration remains less explored.[Methods]Using network exclusion and comparison methods,this review synthesizes current knowledge on the influence of mycorrhiza on soil respiration and its regulatory factors.[Results]Using the mesh exclusion method,researchers have successfully isolated and quantified mycorrhizal respiration,and found that it accounted for an average of 16.8%of soil respiration.Specifically,the contributions of arbuscular mycorrhizal respiration and ectomycorrhizal respiration to soil respiration are 18.4%(2.5%-32.0%)and 15.1%(3.0%-62.1%),respectively.Compared to mycorrhizal-free plants,mycorrhizal-inoculated plants increased soil respiration by an average of 26.0%.Mycorrhizal respiration responds differently to soil temperature and soil moisture across various ecosystems,with mycorrhizal respiration appearing to be more sensitive to changes in soil moisture.Soil nutrient availability regulates the symbiotic relationship between mycorrhizal fungi and plants by affecting the nutrient acquisition strategies of plants,thereby regulating mycorrhizal respiration.Additionally,biological factors such as fine root biomass,extraradical hyphal length density,and the substrates supplied by plants also have significant effects on mycorrhizal respiration.[Conclusion]As an important component of both soil respiration and autotrophic respiration,mycorrhizal respiration contributes substantially to soil C loss,which cannot be overlooked.More advanced methods are needed to isolate and quantify mycorrhizal respiration,and incorporate it into global C models to more accurately assess soil C cycling dynamics,thus providing a scientific basis for global C management and mitigating climate change.关键词
菌根呼吸/土壤呼吸/土壤温度/土壤湿度/生物因子Key words
mycorrhizal respiration/soil respiration/soil temperature/soil moisture/biological factors分类
农业科技引用本文复制引用
郑翔,柳思博,何莹莹,姜姜,蔡延江,张萍,田佳,邱开阳..菌根对土壤呼吸影响的研究进展[J].水土保持学报,2025,39(5):13-23,32,12.基金项目
国家自然科学基金项目(42407340) （42407340）
宁夏重点研发项目引才专项(2024BEH04098) （2024BEH04098）
