地理国情分类区划模型构建及实证研究——以河南省为例

地理国情分类区划是认知和分析地理国情的有效途径,是研究认识地理国情类型特征、组合及其演变趋势的区域差异和地理国情空间分异的基础。本文通过对地理国情普查的基本统计数据进行分析,制定了地理国情分类区划的指标体系;基于多维尺度分析和聚类分析,构建了地理国情分类区划模型。选择河南省地理国情普查数据,对其进行分类区划实验。通过对地理国情数据进行多维尺度分析,根据分析的可视化结果,可直观地确定地理国情的分类区划数,并将此设置为初始的聚类数;在此基础上进行k均值聚类,可实现河南省地理国情的分类区划,通过对各聚类簇中指标数据特征进行分析,并根据各聚类簇中心对区划各类型进行定义和解释,最后对聚类结果进行空间化表达。结果表明：河南省地理国情可划分为指标数据极值区、指标数据低值区、指标数据中值区和指标数据高值区4类,且根据空间集聚性分析,可判断分类区划的空间集聚效应显著,各区划类型间相互包容和渗透,集聚呈4条西南?东北的条状带。该项工作可为统筹地理国情与区域可持续发展,制定切实可行的区域发展政策提供科学依据。

The model construction and empirical research on classification-based regionalization of geographical national conditions:Take Henan Province as an example

Classification based regionalization is an effective way to analyze geographical national conditions and a basis for studying the regional differences in the classification characteristics, combinations, change, and spatial differentiation of geographical national conditions. The index system of the classification-based regionalization of geographical national conditions is determined through the analysis of the basic statistical data of the geographical national conditions survey. Using multidimensional scaling and cluster analysis, the classification-based regionalization model of geographical national conditions was established. The classification-based regionalization experiment was carried out using the geographical national conditions survey data of Henan Province. The number of regions of geographical national conditions was initially intuitively determined through multidimensional scaling on geographic national conditions data of Henan Province. On this basis, the classification-based regionalization was achieved by K-means clustering. The type of regions is defined and explained according to the cluster centers and the characteristics of index data in each cluster. Finally, the clustering result is spatialized. The experimental results show that the geographical national conditions in Henan province can be divided into four regions: extreme value region, low value region, median value region and high value region. The spatial agglomeration effect of regions of geographical national conditions in Henan Province is significant, and It is mutual tolerance and penetration between each classification-based regionalization and constructed of four southwest to northeast strip. In the overall planning of regional development and realizing regional coordinated and sustainable development, we can make feasible regional balanced development policies according to the geographical national conditions of each region.