菌根生物技术在退化草地生态系统中的意义

综述了草地生态系统退化的现状、原因及其恢复途径;综述了菌根在草地生态系统中的功能和作用的研究进展,表明菌根是草地生态系统中不可忽视的重要组成部分。菌根对草原生态系统的作用是多样的,重点讨论的是菌根对生物多样性的影响,提出维持草原生态系统的生物多样性是防止草地进一步退化的关键,菌根与植物的共生是是草场健康发展的关键。菌根生物技术在我国草地保护和草场恢复上具有重要的位置。

Significance of Mycorrhizas Biology Technique on Degenerating Grassland Ecosystem

The present condition, causations ,and the ways of recover of degenerative grassland ecosystem is reviewed in this paper, and the recent advance of research on the function and ability of mycorrhizal fungi in grassland ecosystem is reviewed, it is shown that mycorrhizal fungi are important component in grassland ecosystem. The function of mycorrhizal fungi is diverse to the grassland ecosystem, in this paper the main point is discussing the influence of the mycorrhiza upon plant diversity, pointing out that maintaining the diversity of grassland is a key point in preventing the further deterioration of grassland. Enforcing research on mycorrhizal fungal roles in grassland ecology will facilitate conservation and sustainable development of grassland and grassland ecological projects in China.