丛枝菌根真菌及在石漠化治理中的应用探讨

丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)是一类能与绝大部分植物的根系形成互惠共生体的微生物。近年来,以AMF主导的菌根共生系统已成为一种新型生物修复主体,它可以显著提高受损和退化生态系统修复重建的成功率、缩短修复周期,并保证修复效果的稳定性。石漠化是制约我国西南喀斯特地区可持续发展的重大生态环境问题。AMF独特的生理生态功能与石漠化地区生态恢复亟待克服的障碍之间有良好的对应关系,这表明AMF在石漠化治理中具有重要的潜在应用价值。本文在对AMF生理生态功能进行综述的基础上,探讨了AMF在石漠化治理中的可利用性和应用途径,旨在为从AMF这一全新角度系统探讨植物对喀斯特生境的适应对策以及为岩溶生态系统退化与恢复机理奠定基础,最终在实践上为我国西南地区的石漠化治理及生态经济可持续发展提供一条崭新有效的新途径。

Arbuscular Mycorrhizal Fungi and Their Application in Karst Rocky Desertification Control

Arbuscular mycorrhizal fungi(AMF) are a sort of microbe which could form mutualistic symbionts with most of the terrestrial plant roots.Recently,the mycorrhizal symbiosis system dominated by AMF has been a new subject of bioremediation,which could significantly enhance the success rates and shorten the cycle in the restore process of degraded ecosystem,and ensure the stability of restored result.Karst rocky desertification is a critical environmental problem which could restrict the sustainable development of karst regions in Southwest China.The characteristic eco-physiological functions of AMF have good corresponding relations with the urgent obstacles in karst rocky desertification control,which makes AMF possess important potential application value in this restore process.The paper summarized the eco-physiological functions of AMF and discussed the availability and application way of AMF in karst rocky desertification control.This study aims at studying the adaptation measure of karst plants and laying a theoretical basis for karst ecosystem degradation and restoration,and finally finding a new effective practical way for karst rocky desertification control and sustainable development of ecological economy.