基于Voronoi图的农村居民点空间分布特征及其影响因素研究--以北京市昌平区为例  

Voronoi Diagram-Based Research on Spatial Distribution Characteristics of Rural Settlements and Its Affecting Factors——A Case Study of Changping District,Beijing

作　　者：刘仙桃[1] 郑新奇[1] 李道兵[2] 

机构地区：[1]中国地质大学土地科学技术学院,北京100083 [2]天津市测绘院二院,天津300381

出　　处：《生态与农村环境学报》2009年第2期30-33,93,共5页Journal of Ecology and Rural Environment

基　　金：国家社会科学基金(07BZZ015);国家科技支撑项目(2006BAB15B03、2006BAB15B06、2006BAJ05A03);2007年度国土资源部百名优秀科技人才计划(2007RC13);中国地质大学(北京)人才基金(51900912300)

摘　　要：采用GIS查询统计与Voronoi图CV值相结合的分析方法,研究了地形、公路及河流等环境因素对北京市昌平区农村居民点空间分布特征的影响。结果表明:地形是影响农村居民点空间分布的主导因素,平原地区农村居民点用地比例较高,规模较大,密度较高;山区农村居民点用地比例较低,规模相对较小,密度也较低。公路交通是影响农村居民点空间分布的重要因素,91.19%的农村居民点分布在距离主要公路距离小于1500m的范围内;河流对农村居民点分布也有一定影响,距离河流越远,农村居民点密度越低。Combining GIS with Cv value, the influences of environmental factors, like terrain, roads and rivers, on spatial distribution characteristics of rural settlements in Changping District of Beijing Municipality have been addressed. Results show that terrain is a leading factor. On plains, the rural settlements are quite large in scale and high in density, occupying a high proportion of the land, while in mountainous areas they form a contrast. Road is an important factor affecting distribution of settlements in the rural areas. About 91.19% of the rural settlements are located within the distance of 1 500 m from main highways. River is another factor. The farther away from a river, the less the density of settlements.

关 键 词：VORONOI图 农村居民点 空间分布特征 影响因素 

分 类 号：X21[环境科学与工程—环境科学] K901.8[历史地理—人文地理学]