摘要
采用GIS查询统计与Voronoi图CV值相结合的分析方法,通过计算点状目标的Voronoi多边形面积的变异系数(CV值)方法来分析点状目标的空间分布特征。分析结果表明,甘肃省有9个市、县为随机分布,其余市、县为集群分布,但总体上为集群分布。最近邻指数和CV值通过级差变换后,发现其存在相关性,相关系数为负值,表明两者之间存在负相关关系。
Combining GIS with CV value, according to the CV value and the most close neighbor index classified standard, the research obtained that there were nine residential areas of the random distribution in Gansu Province, other cities and county were the colony distribution, but in overall residential areas were colony distribution. The most close neighbor index and the CV value after the grading transformation discovered its existence relevance, the correlation coefficieut was a negative value, which indicated the correlation relations both of them.
出处
《资源开发与市场》
CAS
CSSCI
2010年第4期302-305,357,共5页
Resource Development & Market
基金
国家自然科学基金项目(编号:40871052)
