AM真菌对植物群落组成和物种多样性的调控机理  

Regulation of plant community composition and plant diversity by arbuscular mycorrhizal fungi

作　　者：张涛[1] 丁效东[2] 冯固[3] 

机构地区：[1]东北师范大学草地科学研究所,植被生态科学教育部重点实验室,吉林长春130024 [2]广东省生态环境与土壤研究所,广东广州510650 [3]中国农业大学资源与环境学院,北京100193

出　　处：《生态环境学报》2012年第12期2024-2030,共7页Ecology and Environmental Sciences

基　　金：中央高校基本科研业务费专项资金(12QNJJ017);国家自然科学基金项目(30770341)

摘　　要：植物群落的形成机制一直是植物种群生态学的核心问题,尽管对植物群落的形成和物种的共存机制投入了大量的研究工作,但是关于植物群落的形成机制一直存在争议。近年来大量的研究工作证实丛枝菌根真菌(简称,AM真菌)可以影响植物的群落组成和物种多样性,但是对于AM真菌改变植物群落组成的机制并不清楚。文章总结了有关AM真菌对植物群落组成影响的研究进展,并对相关研究结果进行分析,探讨了AM真菌对植物种间相互作用的调节;AM真菌引起植物群落组成发生改变的可能机制;影响AM真菌改变植物群落的因素。通过分析研究发现AM真菌对土壤中养分资源在不同物种间分配的差异是AM真菌影响或决定植物群落组成的重要原因,此外,AM真菌对植物群落组成的调控受土壤中AM真菌组成、养分资源(组成、多样性和含量)以及植物群落组成影响。The formation mechanism of plant community is always a key issue to plant population ecologist. Although many studies have done to explain the mechanism of plant community and species coexistence, the controversy on plant community composition is still present. A lot of research work demonstrated that arbuscular mycorrhizal fungi （abbr., AM fungi） can alter plant community composition and plant diversity, but the mechanisms that AM fungi influence plant community composition are not clear. The advance in effects of AM fungi on plant community were summarized and analyzed in this paper. We deeply discussed the possible mechanism and the factors that AM fungi influence plant community composition. The results found that the differences of nutrients resource allocation among different species via AM fungi play a key role in determining plant community composition. Besides that, the influences of AM fungi on plant community were determined by AM fungi composition, resource composition and diversity, plant community.

关 键 词：AM真菌 多样性 群落组成 调控 陆地生态系统 

分 类 号：Q948[生物学—植物学]