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研究表明 ,采用覆土造田对铜矿尾矿库进行开发利用 ,经济效益显著。在粗放耕作下 ,种植单茬冬小麦单产可达 130 0 kg/ hm2 ～ 16 0 0 kg/ hm2 ,冬小麦复播大豆单产可达 180 0kg/ hm2以上 ,春玉米单产可达 4 80 0 kg/ hm2。在精耕细作下 ,种植露地蔬菜 ,年纯收入可达 2 4 0 0元 / hm2 以上 ,产投比 17.4∶ 1;建日光温室种菜 ,年纯收益可达 570 0 0余元 / hm2 。尾矿库复垦的覆土厚度标准 ,以 80 cm为宜 ;土地利用方向 ,以种植蔬菜和瓜类为主导 ;土壤培肥是复垦利用的重要环节 ,培肥方法以发展绿肥为主要方向
The research shows that the use of overburden land for copper mine tailings development and utilization, significant economic benefits. Under extensive tillage, the yield of single cropped winter wheat reached 130 0 kg / hm2 ~ 160 kg / hm2, that of winter sowing soybean exceeded 180 0kg / hm2, and that of spring maize reached 4 80 0 kg / hm2. Under intensive cultivation, the planted open-field vegetables will have an annual net income of more than 2400 yuan / hm2 and a production-to-investment ratio of 17.4: 1. For vegetables grown in solar greenhouse, annual net income will reach 570,000 yuan / hm2. Tailings pond reclamation cover soil thickness standards to 80 cm is appropriate; the direction of land use to grow vegetables and melons dominated; soil fertility is reclamation and utilization of an important part of the fertilization method to develop green manure as the main direction