黄土高原小流域生态系统健康评价指标体系研究

Study on Metrics System for Ecosystem Health Assessment in a Small Watershed Scale on the Loess Plateau in China

小流域是黄土高原地理环境与生态系统的基本单元,建立健康的小流域生态系统是该区可持续发展的基础。文章在深入理解小流域生态系统健康概念的基础上,阐述了黄土高原小流域生态系统健康评价体系构建思路与指标选取原则,并将评价体系分解为活力、组织结构、恢复力、生态系统服务功能和人类健康五个要素,建立了适于黄土高原小流域生态系统健康评价的指标体系,以期为黄土高原小流域生态系统健康建设与区域可持续发展提供科学依据。

A small watershed is the basic geographical and ecological unit on the Loess Plateau of China, and healthy ecosystem in a small watershed is the foundation of the sustainable development of this region. In this paper, firstly, the definition of ecosystem health in a small watershed was given, then, the method and principle of the assessment indicator system were discussed, and finally, five factors （including vigor, organization structure, resilience, service functions of ecosystem and human health） were chosen to build an assessment indicator system. This work could provide scientific evidence for building healthy ecosystems and sustainable development of this region.