Finally,it could developed constructed wetland,it is not only treatment well wastewater in coal mine collapse basin,and its effluent can be reused for irrigating water of main crops or retreated reused.

Thus,treatment of coal mine collapse basin was very significant for either improving the life and environment of local people or promoting industry transformation.

With the field research,the paper reveals the seriousness of coal mine collapse in resource-based cities: coal mine collapse has affected countless people living and livelihoods.

Study on terracing dynamic reclamation of mining collapsed area;

The authors choose two types of waters of which one is mining subsidence lake and another is a general lake which are not affected by mining,to study the environment conditions of Chrysophyta and Xanthophyta growing with comparative analysis method.