基于RS和GIS的台江县土地利用/覆被变化研究

Analysis on the change of land/cover use in Taijiang county based on RS and GIS

为探究台江县近几年的土地利用情况,以2013年和2018年的遥感数据为数据源,运用最大似然法进行土地利用类型提取,借助RS和GIS的空间分析技术和数据处理方法,分析土地利用/覆被变化情况。结果显示:2013—2018年,台江县水田、有林地、灌木林地、其他林地的面积有所减少,旱地、草地、水域、建设用地有所增加。其中面积减少最多的是有林地,减少了9.31km^2;增加最多的是草地,面积增加了11.4km^2;相互转化较多的土地类型是有林地和灌木林地。

In order to explore the land use of the Taijang in recent years,based on the source of remote sensing images in 2013 and 2018,the main land use types are extracted by using maximum likelihood,and the land use/cover change in Taijiang county is analyzed with the technique of GIS Spatial analysis and data processing method derived from the RS and GIS technology.The research findings show that,the areas of paddy field,forest land,shrub,other woodland are decreased to some extent;the areas of dry land,grassland,woodland,waters,construction land are enlarged to some extent.The largest reducing extent is forest land,which has a decrease of 9.31 km^2;the largest increase is grassland,with an area of 11.4 km^2.The types of land that have more mutual transition are forest land and shrubbery.