草地学报2026，Vol.34Issue(9)：3141-3151,11.DOI:10.11733/j.issn.1007-0435.2026.09.001
碳输入与氮添加对草地生态系统丛枝菌根真菌影响的研究进展
Research Progress on the Effects of Carbon Inputs and Nitrogen Addition on Arbuscular Mycorrhizal Fungi in Grassland Ecosystems
摘要
Abstract
Arbuscular mycorrhizal fungi(AMF)are key symbiotic microorganisms that support nutrient acquisi-tion by grassland plants and contribute to soil structure maintenance.This review synthesizes current progress on how different forms of carbon input,nitrogen addition,and their interactions influence AMF in grassland eco-systems,focusing on colonization,hyphal growth,community composition,and symbiotic network structure.Elevated atmospheric CO2 mainly promotes AMF hyphal growth and biomass accumulation by increasing belowground carbon allocation in plants.Biochar application and organic fertilizer addition improve soil physical properties and nutrient retention,thereby facilitating AMF colonization and community recovery.In contrast,the effects of soluble organic carbon inputs are moderated by plant functional group identity and nitrogen-phos-phorus availability.Long-term or high-intensity nitrogen addition generally suppresses AMF,a response closely associated with soil acidification,reduced carbon allocation to mycorrhizae,and reorganization of AMF communities.The interactive effects of carbon inputs and nitrogen addition are constrained by carbon source characteristics,nitrogen legacy effects,and the availability of soil nutrients.Future research should increase the comparability of carbon input studies,clarify the combined regulatory roles of carbon source,nitrogen addition intensity and duration on AMF responses,and provide theoretical support for soil nutrient management and degraded grassland restoration.关键词
丛枝菌根真菌/草地生态系统/碳输入/氮添加/菌根共生Key words
Arbuscular mycorrhizal fungi/Grassland ecosystem/Carbon input/Nitrogen addition/Mycorrhizal symbiosis分类
生物科学引用本文复制引用
刘思彤,高英志..碳输入与氮添加对草地生态系统丛枝菌根真菌影响的研究进展[J].草地学报,2026,34(9):3141-3151,11.基金项目
中央引导地方科技发展资金(ZYYD2025QY07)资助 （ZYYD2025QY07）
