景观破碎化梯度下内蒙古草原群落构建机制——功能性状与系统发育信息相结合

景观破碎化是影响生物多样性的最主要原因之一，但景观破碎化对群落构建机制的研究略显薄弱。将功能性状和系统发育信息整合到群落生态学研究中，为探讨群落构建机制提供了新的视角和思路。本研究以内蒙古草原群落为研究对象，设置对照流域，通过野外考察与室内实验相结合的方法，完成景观破碎化的度量，并获得物种多样性、功能多样性、系统发育多样性信息。一方面探讨三种多样性对景观破碎化的响应，另一方面基于植物功能性状与系统发育相结合的方法深入揭示景观破碎化梯度下群落构建过程及机制。该研究不仅将加深对景观破碎化与生物多样性关系的认识，而且也将丰富群落构建机制的研究，同时可为该区生物多样性保护和植被恢复提供科学指导。

Landscape fragmentation is one of the most important factors affecting biodiversity, but the study on the effect of landscape fragmentation on community assembly is still weak. The combination of functional traits and phylogenetic information into community ecology could provide a novel perspective for exploring community assembly. This project will be carried out in the Inner Mongolia grassland, and comparison between two watersheds are considered. Combined with vegetation survey and laboratory experiment, we will measure landscape fragmentation, soil factors, species diversity, functional diversity and phylogenetic diversity. These datasets would allow us to explore the responses of three dimensions of diversity to landscape fragmentation, reveal the community assembly along the landscape fragmentation gradient based on the combination of functional traits and phylogenetic information. This study is expected to deepen understanding of landscape fragmentation on biodiversity, and enrich the study of community assembly. It would also provide scientific support for guidance of biodiversity conservation and degraded grassland restoration.