草地学报2026，Vol.34Issue(8)：3091-3102,12.DOI:10.11733/j.issn.1007-0435.2026.08.031
森林与草地生态系统外生菌根呼吸与丛枝菌根呼吸对土壤呼吸的相对贡献及影响因子—基于数据整合分析
Relative Contributions and Influencing Factors of Ectomycorrhizal Respiration and Arbuscular Mycorrhizal Respiration to Soil Respiration in Forest and Grassland Ecosystems-Based on Data Integration Analysis
摘要
Abstract
Mycorrhizal respiration(RMyc)significantly affects the carbon cycling in terrestrial ecosystems,yet its contribution potential and main influencing factors remain unclear.In this study,a meta-analysis was conducted by using 105 datasets from 41 publications.By employing a mesh exclusion method to distinguish soil respiration components,we quantified the average contribution of RMyc to soil autotrophic respiration(RAuto)and total soil res-piration(RT),and compared the differences between arbuscular mycorrhizal(AM)and ectomycorrhizal(ECM)contributions.The results showed that the average contribution rates of RMyc to RAuto and RT were 38.55%and 16.87%,respectively.Specifically,the average contributions of AM and ECM to RT were 16.78%(ranging from 2.48%to 32.00%)and 16.73%(ranging from 3.00%to 54.47%),respectively.Correlation analysis indicated that the RMyc rate was significantly negatively correlated with absolute longitude,mean annual precipita-tion,soil total nitrogen,and soil total phosphorus,while it was significantly positively correlated with soil pH and fine root biomass.Over all,RMyc is an important component of soil respiration,and is affected by environmental factors,soil nutrient supply,and symbiotic relationships.This study revealed the contribution of mycorrhizal res-piration to soil carbon fluxes at a global scale,providing a scientific basis for improving soil carbon cycle models.关键词
土壤呼吸/菌根呼吸/网格排除法/土壤性质/生态系统Key words
Soil Respiration/Mycorrhiza Respiration/Grid Exclusion Method/Soil Properties/Ecosystem分类
农业科技引用本文复制引用
柳思博,郑翔,何莹莹,虎娟,胡东月,姜姜,邱开阳,海旭莹,薛斌..森林与草地生态系统外生菌根呼吸与丛枝菌根呼吸对土壤呼吸的相对贡献及影响因子—基于数据整合分析[J].草地学报,2026,34(8):3091-3102,12.基金项目
宁夏重点研发项目引才专项(2024BEH04098) （2024BEH04098）
国家自然科学基金项目(42407340)资助 （42407340）
