泽普县农村居民点空间格局演变及其影响因素

目的]试图揭示出泽普县农村居民点的变化主要驱动力,以期为农村居民点的空间布局管理和科学的布局调整提供政策指导。方法]文章综合使用GIS技术、景观指数定量分析的方法和空间分析方法对泽普县农村居民点2005~2014年用地规模结构、空间分布、形态结构的演变特征进行研究,并且分析了地形与自然资源因素、区位与环境因素和社会经济因素对其的影响。结果]在社会经济快速发展的背景下,泽普县的农村居民点扩张明显,集约程度较低;农村居民点的斑块形态指数趋于规则,人为管控和村镇选址规划的效果初步体现;空间上斑块聚集特征明显,主要体现在大斑块低密度分布和小斑块高密度分布的景观格局;但是从整体来看泽普县近10年来空间格局变化不大,局部有聚集趋势,尤其是在海拔适宜、经济高速发展的地区集中趋势更为明显。结论]农村居民点居住的景观格局变化主要与自然条件息息相关,但在时间和空间的微观层面上社会经济因素和区位条件具有更大的影响力。

SPATIO-TEMPORAL EVOLUTION OF RURAL SETTLEMENT IN ZEPU

The objective is toreveal the main driver force for the change of the rural residential areas, so as to provide policy guidance and scientific layout adjustment for space layout management in Zepu county. GIS technology and landscape index method were used in this paper. The results showed that under the background of social and economic rapid development, therural settlement was greatly expandedwith low degree of intensive; the patch shape index ofrural residential areas tended to be regulated, the effect of artificial management and rural location planning was obvious. The distribution of landscape pattern showedlow density oflarge patchesand high densityof small patches; But the spatial pattern changed a little in recent 10 years for the whole county, and concentrated to the regions where the elevation was suitable and the economic development was high-speed. It concluded that the landscape pattern changein rural residential areawas closely related to natural condition, especially the social economic factors and geographical conditions.