The problems of eco-environment of Shiyang valley are serious. The main factors of them are high pressure of population to environment and irrational utilization of water resources and so on.
石羊河流域生态环境存在着严重的问题,主要是由于人口对生态环境的压力过大、水资源利用不当等因素引起的;
The problems of eco-environment of Shiyang valley are serious. The main factors of them are high pressure of population to environment and irrational utilization of water resources and so on.
石羊河流域生态环境存在着严重的问题,主要是由于人口对生态环境的压力过大、水资源利用不当等因素引起的;
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