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随着煤炭的不断开采,造成地表塌陷,土地破坏越来越严重。然而,利用煤矿开采的废料——煤矸石和电厂的废渣——粉煤灰,输送到采煤塌陷区,填平后可成复田。这样一方面可解决煤矿和电厂的废物处理,降低生产成本,减少环境污染;另一方面,恢复了耕地面积。对恢复后的土地如何开发利用,是摆在我们面前的重要课题。根据柳树具有用途广,繁殖容易,适应性强等特点,我们1986年用4个柳树品种在不同基质上进行了育苗试验。为矿区造林绿化,改善和恢复生态环境提供科学依据。
With the continuous exploitation of coal, resulting in surface subsidence, land destruction is more and more serious. However, the use of coal mining waste - coal gangue and power plant waste - fly ash, coal mining subsidence area, filling can be completed after the field. This will solve the waste treatment of coal mines and power plants on the one hand, reduce production costs and reduce environmental pollution; on the other hand, restore the arable land. How to develop and utilize the restored land is an important issue before us. According to Willow has wide use, easy propagation, adaptability and other characteristics, we use four willow varieties on different substrates in 1986 nursery experiments. It provides a scientific basis for afforestation and greening in the mining area and improvement and restoration of the ecological environment.