基于GIS和计量地理模型的河南省土地利用现状分析

利用河南省2008年土地利用类型数据,运用多个计量地理学模型,主要包括多样化、集中化、组合类型、区位意义和土地利用程度等模型来进行计算,得出相应数据,再用ArcGIS软件对数据做进一步处理,最后对河南省的土地利用进行空间分析.通过分析河南省的土地利用空间格局,可以得到以下结论:1)河南省土地利用类型多样化呈现由东向西增加的趋势,集中化程度与多样化相反,受地形影响,农用地分布规律明显.2)从土地利用结构来看,耕地是河南省土地中比重最大的土地类型.3)从土地组合类型分析结果来看,河南省土地的组合类型仅为4种:耕地、林地、未利用地、居民点及工矿用地,整体功能较差.4)耕地、居民点及工矿用地和交通运输用地在全省多数地区具有区位意义,但河南省耕地后备资源不足,开发利用制约因素较多.

Analysis on Land Use Status in Henan Province Based on GIS and Quantitative Geography Model

Based on the detail data of land use types in 2008,Henan Province,this paper utilizes many multiple quantitative geography models,including the diversity model,centralized model,the model of the sense of location and land utilization to calculate and gain the corresponding data,and then uses ArcGIS software to make the quantitative analysis of land use spatial pattern of Henan. The results indicate that: 1) Diversification of land use type in Henan shows an increasing trend from east to west,but the degree of concentration is opposite to the diversification. Influenced by terrain,arable land distribution law is significant. 2) Form the structure table of land use,arable land is the largest type of land in Henan 3) Henan province's land combination type has only4 kinds: farmland,woodland,unused land,residential and industrial land with an overall poor function. 4) Arable land,residential and industrial land use and transportation land in most parts of Henan have a sense of location. But the reserve resources of the arable land in Henan is inadequate,which may restrict the development and the use of land.