摘要
根据影响聊城市人口压力的内在矛盾和外在因素,确定了聊城市人口压力评价指标体系,采用主成分分析法计算了人口压力指数,再通过聚类分析等方法,定量分析了1998—2007年聊城市人口压力的空间格局,借助Ar-cGIS9.2软件采用格网法对聊城市人口压力空间格局进行制图显示。结果表明,1998—2007年,聊城市人口压力沿东北-西南轴线呈现明显的地域特征,在空间上出现聚集效应,高唐县人口压力指数在-0.14-0.22之间,人口压力适中,人口与社会经济、资源环境发展协调;东昌府区、临清市、茌平县和东阿县人口压力指数在0.1-0.99之间,人口压力较小,人口承载力较强;冠县、阳谷县和莘县人口压力指数在0.79-1.68之间,人口压力较大,人口与社会经济、资源环境等发展不协调。这种空间分布格局与各地区的有形资源和无形资源都有关系,无须资源的影响比重越来越大。
Aiming at the internal contradiction and external factors which affect the population pressure of Liaocheng city, the evaluation index system is confirmed. The principal component analysis is adopted to calculate the population pressure index. And then through clustering analytical method, the spatial pattern of the population pressure in Liaoeheng city during 1998 to 2007 are quantitively analysed. The result shows that the spatial pattern of population pressure has obvious clime characters. There is a spatial clustering pattern from northeast to southwest. The population pressure index of Gaotang county is between - 0.14 and 0.22, population pressure is mezzo, it is harmonious in population, societal economy and resource environment, the population pressure index in DongChangfu,LinQing,ChiPing and DongE is between 0.1 and 0.99, population pressure is small, the carrying capacity in population is strongly, the population pressure index in Guan county,YangGu and Shen county is be- tween 0.79 and 1.68, population pressure is large, it is not harmonious in population, societal economy and resource environ- ment.The spatial pattern is relational with corporeal resource and bodiless resource. The import of bodiless resource is larger and larger.
出处
《西北人口》
CSSCI
2009年第5期7-10,共4页
Northwest Population Journal
基金
聊城大学青年项目基金(X071015)
关键词
人口压力
空间格局
主成分分析
聊城市
Population pressure
Spatial pattern
Principal component analysis
Liaocheng city
