基于遥感的矿业用地演变规律分析

Analysis of mining land use regulations based on remote sensing

矿业集聚区内的矿业用地分布直接关系到区域土地利用安全格局。该文以武安市为例,以1996年、2006年TM图为数据源,采用遥感资料自动识别软件(ENVI)和人工目视解译相结合的方法,利用ARC/INFO软件提取土地利用类型动态变化矩阵反映土地利用面积变化,表明区域内变化率最大的用地类型是工矿用地;通过景观分析软件FRAGSTATS3.3获取土地利用景观指数,表明工矿景观要素在区域中所起的作用在增加,各类用地分布的复杂程度提高,总体景观格局离散程度与变化幅度有限,矿业用地与矿产资源分布的总体集聚性非常强。

Mining land in a mining centralized zone is directly related to regional land-use security pattern.Wu’an city was took as a case study.TM images maps in 1996 and 2006 as data sources were used and the combined method of remote sensing software ENVI for automatic recognition and manual interpretation was adopted.The matrix of dynamic land-use change extracted by ARC/INFO and changes of land use area showed that the land type with the greatest change rate was mining land.The landscape indices calculated by the software FRAGSTATS3.3 showed that the role mining and industrial landscape elements played in this region was enhanced,the complexity of distribution of all lands was increased,the dispersion and change range of overall landscape pattern were limited,and that the distribution of mining land was centralized closely with that of mineral resources.