老挝中部地区林业用地空间适宜性多尺度评价

Multi-scale Spatial Suitability Evaluation of Forest Land in Central Laos

通过顾及多尺度的适宜性评价方法和指标体系的构建,运用地理信息系统空间分析方法,以老挝中部甘蒙、沙湾拿吉两省作为研究区域,开展林业用地适宜性评价研究。结果表明:(1)全域尺度林业用地适宜面积为37 352.11 km^2,其中,一级适宜区域主要分布于欣奔、他曲、农泊、塞布里、凯山丰威汉、孟平、孟农。(2)省域尺度林业用地适宜面积为36 579.34 km^2,其中,一级适宜区域主要分布于湄公河流域及研究区东北部、东南部山区。(3)县域尺度林业用地适宜面积为36 727.74 km^2,其中,一级适宜区域主要分布于研究区东北部及中部、东南部山区。

Multi-scale suitability evaluation method and index system was built with GIS spatial analysis method to carry out forestry land suitability evaluation in this research. Khammouan Province and Savannakhet Province in central Laos were taken as the study areas. The results showed that:(1) In the whole-region scale, the suitable area of forestry land was 37 352.11 km^2, among them, the most suitable areas were mainly distributed in the Hinboun, Thakhek, Nongbok, Xaibouli, Kaysone Phomvihane, Phin, and Nong;(2) In the provincial scale, the suitable area of forestry land was 36 579.34 km^2, among them, the most suitable areas were mainly distributed in the Mekong River Basin and the mountain areas in the southeast and northeast;(3) In the county scale, the suitable area of forestry land was 36 727.74 km^2, among them, the most suitable areas were mainly distributed in the mountain areas in the northeast, southeast and central of the study area. This method can provide a reference for multi-scale land use planning.