试论河流生态系统健康及其评价方法

河流生态系统是与人类密切相关的生态系统,它的健康与否直接关系到人类健康和社会经济的发展.在此介绍了生态系统健康的概念,并以河流生态系统为例,将生态系统健康评价指标分为系统本身特性指标和社会发展与人类健康指标两大类.着重阐述了系统本身特性中的生态指标,列举了以着生藻类、底栖无脊椎动物和鱼类为指示生物的评价方法.最后指出生态系统健康评价的难点.

Definition and Assessment of River Ecosystem Health

River ecosystem makes an important role in people health and development of society and economy.This paper introduced the conception of ecosystem health and took the river ecosystem for example to diversify estimate index to index of instinctual characteristic and index of deveJ.opment of society and people health.The paper also emphasized the zoology index that belongs to ecosystem instinctual characteristic and introduced the estimate methods that used algae,benthic invertebrate and fish as indicator.The difficulties of estimating ecosystem were pointed out at the end.