In order to study impact of gradient,slope aspect,altitude and other factors on reclamation soil organic carbon spatial distribution in opencast coal mine of loess hilly area,the authors selected soil sample from West spoibank of Antaibao opencast coal mine,Pingshuo, Shanxi as obj ect of study,and digital processed contour map to DEM under GIS platform basing upon 1 m contour map. According to comprehensive analysis,the results indicated that in loess hilly area,the carbon content of organic reclamation soil was negatively correlated with altitude, but the correlation was not significant;the relationship between slope and organic carbon had a significantly single peak curve and preferably matching;and slope aspect affected spatial distribu-tion of organic carbon to a certain degree. The overall performance of organic carbon content from low to high were cloudy slope,sunny slope,semi-sunny slope and semi-cloudy slope.%为研究坡度、坡向和海拔等地形因子对黄土丘陵区露天煤矿复垦土壤有机碳空间分布的影响,选择山西平朔矿区安太堡露天煤矿西排土场为研究对象进行土壤采样,以1 m等高线图为基础图件在GIS 平台下对等高线图进行数字化处理生成 DEM,并进行综合分析,结果表明,黄土丘陵区复垦土壤有机碳含量与海拔呈负相关关系,但相关性不显著；坡度与有机碳呈显著单峰型曲线关系,二者拟合较好；坡向在一定程度上也会影响有机碳的空间分布,有机碳含量整体表现为：阴坡＜阳坡＜半阳坡＜半阴坡。
展开▼
