我国西南岩溶地区自然植被群落与小生境耦合关系研究

生境是植物生长的具体环境，而群落环境是有机体和生境共同作用的结果。关于岩溶地区植物对不同生境的利用已成为近年来研究的热点。文中系统地总结了岩溶地区小生境类型特征、不同石漠化等级、坡位等因素对自然植被群落分布特征的影响，结合前人研究成果进一步分析了岩溶地区不同生境条件、坡位以及石漠化等级下自然植被群落结构、优势种、物种多样性、生物量以及生活型谱结构的差异，以期为岩溶地区植被与生境耦合程度以及不同生境下植被资源的配置提供理论参考，对岩溶生态环境保护、石漠化防治和石漠化地区植被恢复具有重要意义。

A Study of the Coupling Relationship Between Natural Vegetation Community and Micro-habitat in Karst Ecosystem of Southwest China

Habitat is a specific environment for plant growth, and the community environment is the result of the interaction of organisms and habitats. The different habitats of plants in karst regions have become the hot topic of research in recent years. This paper systematically summarizes the effects of the types of karst regions micro-habitat and their characteristics, different rocky desertification grades, slope positions and other factors on the distribution characteristics of natural vegetation communities. Based on the previous research results, the paper further analyzes the differences in natural vegetation community structure, dominant species, species diversity, biomass and life spectrum structure under different habitat conditions, slope positions and rocky desertification grades in karst region, which is aimed to provide theoretic references for the coupling degree between vegetation and habitat and for the allocation of vegetation resources under different habitats. The research results are of great significance for protecting karst ecological environment, preventing and controlling rocky desertification and restoring vegetation in rocky desertification areas.