大余县矿区的尾砂流失及治理

开采钨矿获得了巨大的经济效益和社会效益、但是开采与精选钨砂产生的尾砂流失会严重淤积河床；废水会污染环境，大余县没有及时治理对生态环境——农业生态环境造成了极大的危害。造成危害后再去治理要付出巨大的代价。希望吸取大余县的教训，提出在今后开发矿业等工程时要严格按照水土保持法规的要求，加强《水土保持方案》的审批与监督，切实把好主体工程与水土保持防护工程的“三同时”关，防止先破坏后治理，为子秤后代造福。

The Loss and Control of Tail Sediment in Mine Area in Dayu County

From exploiting tungsten, great economic and social effectiveness have been acquired Nevertheless, tail sediment loss which come from exploiting is the severe, waste water will pollute environment. Not being managed in time does great harms to agriculture ecological environment in Dayu. After harms have taken place, we have to pay too much for managing. To learn the lesson from Dayu county, this article suggests that in mining industry in the future, we must comply with the requirements of soil and water conservation’s codes, reinforce examining and approving and monitoring procedures to soil and water conservations, exactly hold the gate of u three synchronism" between main body engineerings and soil and water conservationengineerings, avoid managing after damaging. and try to do good to the future generations.