经济系统和自然环境通过物质与能量流动相互联系，而物质流与能量流的失衡是环境问题产生的关键原因。
Economy and environment are linked by material and energy flow, while the imbalance of the flow is the key cause inducing environmental problems.
结构指标分为资源系统指标，社会经济系统指标和环境系统指标。功能性指标引入协调度的概念来进行描述，并给出了协调度计算的两种方法。
The structural index can be divided into the system index of resources, the system index of social economy and the system index of environment.
在现代流域环境中，由于人类活动规模和强度在不断的提高，社会经济系统已相当深入地影响了水资源系统和生态系统。
In modern basin in the environment, due to human activity in size and strength, improving the social economic system has quite deep influence on the water resources system and ecological system.
应用推荐