Study On The Construction And Control Model Of Ecological Civilization And The Application Of Vegetation Rehabilitation Technology In The Closed Reservoir Of Tailings Reservoir

After the tailings reservoir is closed,a large amount of land resources are idle,which leads to the low utilization rate and low volume of land.Therefore,it is an urgent need to solve the problem of comprehensive treatment and reclamation.The method of fuzzy comprehensive evaluation,limit condition and index and method are adopted to study the ecological treatment mode after closing the reservoir,and the land reclamation and the vegetation restoration of the tailing reservoir are analyzed by means of consulting the literature,the field visits and the research of the subject.The paper puts forward the management mode and the vegetation restoration technology in the form of PPP and BOT,and the following results and conclusions are obtained:(1)On the basis of the present situation of field ecology,the necessity of ecological restoration in closed reservoir area of tailings pond is analyzed.Ecological restoration and vegetation restoration in closed reservoir area are necessary,and it is also an effective way to control water and soil loss and realize reasonable utilization of land resources.(2)Through the analysis of the technical feasibility,economic feasibility and ecoenvironment coordination of the ecological management in the closed reservoir area,the paper puts forward the treatment model of the tailings,including the government-led,the enterprise's participation,the social power,the public assistance and the capital investment.The government-led and social forces are important subjects,and the source of funds is an important means of guarantee,so as to complete the management of the land in the reservoir area,bring benefits to the life of the villagers,and also realize the value utilization of the reservoir in the closed reservoir area of the tailing reservoir.(3)According to the characteristics of the topography and the landform,the construction of the project and the completion and operation of the Donggou mining area,the classification and study are carried out,and the standardized model including the land reclamation and the vegetation restoration with the targeted tailing reservoir is summarized.And provides reference and reference for the ecological environment treatment after the same type of metal tailings pond is closed.(4)The characteristics of grass,irrigation and Joe plants are analyzed,and the vegetation restoration technology in the closed reservoir area is studied,and the suitable soil covering thickness,water and soil and nutrient,runoff erosion power and the growth conditions such as water-retaining agent and the like are required for the mining area.the restoration effect is evaluated by using the minimum limit condition method,and the reclamation suitability secondary evaluation system is formed,and the evaluation results are obtained through six factors such as the terrain slope,the soil texture,the effective soil layer thickness,the drainage condition,the damage range and the irrigation condition,And then the ecological management of the closed reservoir area is analyzed.The research in this paper provides a reference index for effectively improving the greening appearance of tailings reservoir closed reservoir area and increasing the land volume rate,provides a good production and living environment for local residents,promotes the development of local rural economy,and provides ideas for the construction of green mines.At the same time,it plays a certain reference value in guiding and popularizing the development of ecological management within the scope of operation of mining enterprises in our country.