郑汴一体化区域城市建成区重要地理国情要素动态监测

Dynamic Monitoring on Significant Geographical Conditions of Zhengzhou-Kaifeng Integration Area

本文以郑汴一体化区域内2市、1区、11县(及县级市)城区为研究对象,选取14个城市建成区内建筑物、道路及绿地作为监测要素,采用多期遥感和地形图数据提取不同时期的要素信息,利用地理信息系统(GIS)及空间统计分析方法,结合经济社会数据,分析了郑汴一体化区域建成区内地理国情要素近48年的时空动态变化。结果表明,郑汴一体化区域城市建成区扩展,带来了城市规模、土地利用及空间结构的急剧扩张,区域内14个监测城市重要地理国情要素扩展时段主要集中在"九五"、"十五"和"十一五"期间,反映出区域政策的重要引导作用。

Geographical conditions are important parts of the basic national conditions.City is the most concentrated and active geographical unit of demographic,social and economic activity.As the important part of geographical conditions information,the geographic features of buildings,roads and green space in the urban built-up area also have an important significance in the regional geography monitor conditions.In this paper,the research objects are consist of 2 cities,1 district and 11 counties (including county-level cities)in the integration of Zhengzhou and Kaifeng City area.Using geographic information systems (GIS)and statistical analysis methods and multi-stage remote sensing and topographic data to extract the feature information of buildings,roads and green are of different periods.Combined with economic and social data,this paper analyzes the temporal dynamic of national conditions elements in the built-up area of Zhengzhou and Kaifeng integration area during the 48 years.The results showed that the expansion of built-up area in integration of Zhengzhou-Kaifeng area brought the rapid changes of city size,land use and spatial structure.During the period of "9th,10th and 11th Five-Year Plan",the significant geographical conditions of 14 urban districts expanded largely,reflecting the important guiding role of regional policy.