论文部分内容阅读
对人类生存和发展所依赖的生态系统之健康性的讨论,迄今已引起多个学科的重视。到目前为止,对几乎所有的生态系统类型都各自进行过健康评价。但是,由于生态系统健康研究是一个新领域,有关它的概念、评价等方面存在各种争论,故急需一种更能被普遍接受的、用来定义、分析、评价生态系统健康的理论与方法。论文阐述了生态系统健康的内涵以及评价生态系统健康的基础前提,依据统计学理论,通过因子分析和正态分布理论,提出了评价生态系统健康的一个新视角。最后通过模拟实例对100个生态系统群进行生态系统健康评价,找到了其中不健康的11个生态系统。该方法能通用于各种类型的生态系统健康评价,为生态系统健康的定量分析与评价提供了新的途径。
Discussions on the health of ecosystems on which human survival and development depend have so far attracted the attention of many disciplines. To date, health assessments have been conducted on almost every type of ecosystem. However, since ecosystem health research is a new field and there are various controversies about its concept, evaluation, etc., there is an urgent need for a more universally accepted theory and method for defining, analyzing and evaluating ecosystem health . The paper expounds the connotation of ecosystem health and the basic preconditions for evaluating ecosystem health. Based on the statistical theory, this paper presents a new perspective for evaluating ecosystem health through factor analysis and normal distribution theory. Finally, the ecosystem health evaluation of 100 ecosystem groups was conducted through simulation examples, and 11 unhealthy ecosystems were found out. This method can be applied to all kinds of ecosystem health assessment and provides a new way for the quantitative analysis and evaluation of ecosystem health.