精品文档---下载后可任意编辑GIS 支持下的农村居民点分布特征及用地扩展模拟讨论——以柘溪镇为例中期报告摘要：农村居民点是农村地区人口聚集的重要场所，而其用地扩展则对农村土地资源、生态环境和社会经济产生深远影响。本文基于 GIS技术，以柘溪镇为例，讨论其农村居民点的空间分布特征及用地扩展模拟情况。首先，利用遥感影像和地形数据，提取柘溪镇的农村居民点信息，分析其空间分布特征和数量变化趋势。其次，利用 CA-Markov 模型，模拟未来 10 年柘溪镇农村居民点用地扩展的可能性和空间分布情况。讨论结果表明，柘溪镇的农村居民点数量、密度和空间分布存在一定差异，其中集中型和分散型分别占主导；未来 10 年，柘溪镇的农村居民点用地扩展主要呈现向外扩散和向集中区域聚集两种方向。关键词：GIS；农村居民点；用地扩展模拟；CA-Markov 模型；柘溪镇Abstract: Rural residential areas are important places where rural populations gather, and their land expansion has far-reaching impact on rural land resources, ecological environment and social economy. Based on GIS technology, taking Zhexi Town as an example, this paper studies the spatial distribution characteristics and land expansion simulation of rural residential areas. Firstly, using remote sensing images and terrain data, the rural residential areas information of Zhexi Town is extracted to analyze its spatial distribution characteristics and quantity change trend. Secondly, CA-Markov model is used to simulate the possibility and spatial distribution of future 10-year rural residential area expansion in Zhexi Town. The results show that there are certain differences in the number, density and spatial distribution of rural residential areas in Zhexi Town, among which the centralized and dispersed types are dominant respectively; In the next 10 years, the land expansion of rural residential areas in Zhexi Town mainly shows two directions: outward expansion and aggregation to the concentrated areas.Keywords: GIS; rural residential areas; land expansion simulation; CA-Markov model; Zhexi Town
