荒漠区植被斑块格局演化的生态地质学机制  

Eco-Geology Mechanism of Desert Vegetation Patchs Pattern Evolution

作　　者：古琴[1] 周爱国[2] 邢新丽[1] 

机构地区：[1]中国地质大学研究生院,湖北武汉430074 [2]中国地质大学环境学院,湖北武汉430074

出　　处：《中国水土保持》2007年第1期38-40,共3页Soil and Water Conservation in China

基　　金：国土资源部科技专项计划(200010302)

摘　　要：以植物根群为纽带,分析荒漠区地下生境结构与地表植被结构间的关系,据此推断荒漠区植被斑块格局演化的生态地质学机制。研究证明:荒漠区地下生境结构对地表植被具有控制作用;相对完善和稳定的地下生境结构是植被斑块形成和维持的基础;外力作用下地下生境结构的改变与重建则是植被斑块格局演化的深层机制;生态建设中,地下生境的保护与改善应作为工作重点。It analyzes the relationship of underground habitat pttern and vegetation structure of desert areas based on plant roots mass and deduces the ecological geology mechanism of desert vegetation patches pattern evolution based on that analysis. The study shows that the underground habitat pttern of the desert areas has a control function on vegetation; relative perfect and stable structure of underground habitat is the basis for the formation and keeping the vegetation patch; the changes and rebuilding of underground habitat structure under the outside force action are the deep mechanism of vegetation patch pattern evolvement and; the protection and improvement of underground habitat should be taken as a key work during ecological building.

关 键 词：植被 斑块 地下生境 植物根群 风蚀 荒漠区 

分 类 号：Q948[生物学—植物学]