探讨了河流生态系统健康的概念和评价方法.

The concept and evaluation method of river ecosystem health were discussed.

人类不合理的社会经济活动严重干扰了河流生态系统，河流健康问题引起广泛的重视。

Disturbance from irrational anthropogenic socioeconomic activity has influenced river ecosystem seriously and intensive attention has been paid on issues concerning river health.

本书在系统阐述河流生态系统结构和功能的基础上，分析了水利工程对生态系统的胁迫效应及其机理。

In this book, river ecosystem structure and its functions are described and stresses of hydraulic engineering on river ecosystems are analyzed comprehensively.

从河流的连续性特征出发分析了大坝对于河流生态系统的胁迫问题.

The stresses of dams on river ecosystems are analyzed based on river continuity characteristics.

可见由大宝山矿区排出的酸性矿水对下游溪流的水生生物多样性和河流生态系统造成了严重的破坏。

These indicate that AMD from the Dabaoshan Mine has been causing severe damage of the downstream aquatic ecosystem.

水利工程可能引起河流形态的均一化及非连续化，从而降低生物群落多样性的水平，造成对河流生态系统的一种胁迫。

The existence of water projects may lead to the uniformity and discontinuity of river morphology, which may cause the reduction of diversity of river bio-communities and threaten the river eco-system.