Abstract:

In order to Master variation characteristic and optimization of spatial distribution on settlement in upland half a mountainous area will provide an important basis for implement of planning and consolidation. Take Hailin city in upland half a mountainous in Changbai mountain as a case, used TM, DEM and other datum, the study quantitatively analyzed the spatial characterizations of settlements in the area from the aspects of elevation, slope, aspect, roads and rivers. The weight and score of each index were determined with Delphi Method, and then according to the population, economy social humanity and so on, the study divided the settlement into three types: relocation, reservation and development. Optimization on the settlement was in the end. The results indicated that with the elevation and slope increased, the number and area were gradually reduced. In the northern region, northern slope of settlement had the minimum area. Transport and water were significantly associated with spatial distribution of settlement. According to optimization, 148 settlements were determined as the relocation, 1632 settlements as the reservation and 40 settlements as the development.