以地处黄土高原的黑岱沟露天煤矿生态修复为例,从宏观、微观两个角度对生态脆弱区露天煤矿生态修复效应进行探讨,结果表明:受露天采煤的影响,区域景观格局发生了较大变化,斑块数量增加,抗干扰能力降低,斑块间影响程度复杂;人工植被土壤质量关联度为"油松林+柳+沙棘"(三级)〉果树(三级)〉锦鸡儿(三级)〉羊草(三级)〉纯杨树(人工)(三级)〉油松林(四级)〉"杨+沙棘"(四级);景观格局中植被覆盖面积的增加,在一定程度上消除了区域景观格局变化对区域生态系统产生的影响;生态脆弱区生态修复经历了生态破坏阶段、生态雏形阶段,正在向生态重建阶段进行。研究结果可以为矿区土壤生境构建、植被群落构建及调控提供理论支持。
According to the example of ecological restoration area of Heidaigou open- pit coal mine in Loess Plateau,the paper discussed the ecological rehabilitation effects of open- pit mine in ecologically fragile area from macro and micro views,the results show that: Due to open- pit mining,regional landscape pattern changed greatly,number of patches increased,anti- interference ability weakened, and the inter- patch influence was complex; Artificial soil quality vegetation correlation: Pinus tabulaeformis, Salix matsudana and Hippophae rhamnoides( three) 〉Orchard( three) 〉Caragana intermdia( three) 〉Chinensis( three) 〉Pure poplar( artificial)( three) 〉Pine oil( four)〉 Pure poplar and sea buckthorn( four); Vegetation cover in landscape pattern increases,to a certain extent,eliminated the effects of landscape structure change on regional ecosystems; Ecologically fragile areas experienced ecological damage,ecological restoration,ecological prototype stage,and was on the way to ecological reconstruction.