关键种在生态系统中的现状分析及保护对策

针对目前我国生态系统关键种生存受到严重威胁的问题，阐述了关键种的概念、起源及关键种在生态系统中的重要地位。同时从关键种在生态系统中所具有的理论和实践价值等多角度进行了分析，以及对怎样有效保护生态系统关键种进行了有益的探讨。为促进我国生态系统保护具有一定的理论指导和现实意义。

The Analysis and Protects the Countermeasure Key Species in the Ecosystem

Aiming at the current our country ecosystem key species to exist the problem that suffer to the serious threat. Key species concept, origins and the key species' important positions that sow in the e-cosystem inside are explained. At the same time, from many the angles of the theories and practice worth of key species and so on proceeded the analysis and how to protect effectively the ecosystem key species and proceeded the beneficial study are presented. It has a certain theories guides with realistic meaning to protect our country ecosystem.