喀斯特地区石材开采迹地生态复垦研究——以贵州花江示范区为例

STUDY ON ECOLOGICAL RECULTIVATION OF ABANDONED LIMESTONE QUARRY IN KARST AREA——With a Special Reference to the Huajiang Area,Guizhou

针对花江喀斯特石材开采造成的生态环境问题,设计出自然状态、简易立体化和工程化3种复垦模式,并由此而形成特殊的技术示范。研究结果表明:从植被覆盖率来看,自然状态复垦模式的效果比较明显;但是从对3种模式的预期经济收益分析来看,简易立体化复垦模式的效益相对较好,人力、物力的投入也没有工程化复垦模式那么昂贵,比较适合贵州花江地区实际情况,是农户比较乐意接受的方式。

The limestone quarrying results in problems of the eco-environment in Huajiang karst area. In terms of the factor, three models for ecologic recultivation are designed-the natural model, the simple stereoscopic model and the engineering model, and special technique norms going with them are put forward. The results show that there is a distinct improvement of the natural model on ecological effects, but considering the prospective economic benefits, the simple stereoscopic model is the best, to which the devotion of the manpower and material resources are less than that of the engineering model, and which is also a way that the peasants accept with pleasure, in keeping with the actual situation in Huajiang, Guizhou.