Applying a GIS-based model to collect information on agricultural land-use change in Beijing
会议名称：《The First International Conference on Computers and Computing Technologies in Agriculture》
会议日期：2007年
学科分类：12[管理学] 081603[工学-地图制图学与地理信息工程] 082802[工学-农业水土工程] 081802[工学-地球探测与信息技术] 07[理学] 08[工学] 070503[理学-地图学与地理信息系统] 1204[管理学-公共管理] 0828[工学-农业工程] 0818[工学-地质资源与地质工程] 0705[理学-地理学] 0816[工学-测绘科学与技术] 120405[管理学-土地资源管理]
关 键 词：agricultural land use centroid model GIS spatial configuration suburban Beijing
摘 要：正Agricultural land use in suburban Beijing has changed dramatically in the last decade. This paper utilised unique,county-level spatial inventory datasets of land use in 1993 and 2004 to better quantify spatial configuration changes of main agricultural land-use types in the suburban counties of Beijing.A revised centroid model was applied to explicitly capture,analyse and visualise centroidal coordinates of land-use types in six typical suburban counties（samples） by geographic information system（GIS）.Obvious displacements of corresponding centroids of agricultural land-use types in the samples demonstrates that configurations of agricultural land use have been destroyed in different parts of suburban ***, some typical patterns are explored according to the direction of displacement,which is driven mainly by urbanisation,topography,economic development and land-use ***-use policies are shown to play more direct roles in spatial configuration changes of agricultural land use than other factors. It can be concluded that agricultural land-use configuration in suburban Beijing is affected by land resource balance among economic development, grain production and ecological protection.