古交市矿区土地覆盖时空动态变化研究

Research on Space- time Dynamic Change of Land Coverage in Gujiao Mining Area

为了研究矿区土地覆盖的动态变化规律,以古交矿区为研究区,通过监督分类解译获取矿区1990年、2000年、2010年相同季节的土地覆盖类型图。运用转移矩阵和CA-Markov模型方法分别对研究区土地覆盖类型动态变化进行了研究和预测,结果表明:1)1990—2010年林地的面积持续增加,年增长率达到了5.49%,耕地和草地的面积大幅度减少,尤其是草地的面积,此外城镇建设用地和水域轻微减少。2)2010—2020年耕地和草地的面积进一步减少,城镇和工矿用地以及水域的面积小幅度增加,林地的面积继续大幅度增长,年增长率达到了2.18%。

In order to study the dynamic change rule of land cover in mining area,takes Gujiao mining area as the study area.Through supervised classification and interpretation obtains the land cover type maps of mining area of the same season in 1990,2000,2010.By using the transfer matrix method and CA-Markov model to study and pre-dict the dynamic change of land cover type,the results show that 1）from 1990 to 2010 the areas of forest land contin-ue to increase,the annual growth rate is 5 .49%,the areas of farmland and grassland reduce drastically,especially the grassland area,in addition,urban construction land and waters decrease slightly.2）from 2010 to 2020,the are-as of arable land and grassland decrease further.Towns,industrial and mining land and water areas increase small. Forest area continues to increase drastically,the annual growth rate reaches 2.18%.