Analysis on evaluation method of ecological restoration and landform remodeling effect in open-pit mines
The landform landscape and land resources would be destroyed in the process of open pit mining,forming a large area of bare concave lack of landform,and changing the original terrain. As an important part of the evaluation of mine ecological restoration effect,it is necessary to evaluate the landform remodeling effect of mine after adopting appropriate engineering and technical measures for ecological restoration of mine. For reference,slope,slope,topographic relief and elevation variation among geomorphic factors were selected as evaluation indexes for geomorphic remodeling. Throughhorizontalcomparison,the coordination of geomorphic relief between the ecological restoration area and surrounding areas was analyzed,and the topographic relief of the ecological restoration area before and after restoration was compared vertically. The grading criteria and weight of each index,as well as the comprehensive grading method and classification of geomorphic remodeling were given in this study. In this paper,two historical mines/extraction points were taken as examples,and the relevant evaluation index values were calculated by ARCGIS. The comprehensive scoring results showed that the geomorphic remodeling effect of ecological restoration areas at the two mines/extraction points was good,which was consistent with the actual survey results,and the evaluation method was verified to be feasible.
geomorphic remodelingthe coordination of landform landscapeARCGISecological restorationweighted index
万方数据
维普
