基于GIS的土地利用空间变化研究

Study on Spatial Change of Land Use Based on GIS

土地利用变化空间格局演变特征是土地利用可持续发展研究的前提和基础。以黑龙江省绥芬河市为研究区,以2010年、2014年、2016年三期土地利用数据库为基础,利用GIS技术手段,基于景观指数法、核密度分析法分析研究区土地利用空间格局变化特征。研究结果表明:研究区土地利用变化幅度趋于减小趋势,且变化均发生在斑块密度高和斑块边缘地区,土地利用的整体空间格局趋于稳定;耕地分布密度大,均匀分布在研究区内,而建设用地分布密度小,主要集中分布在'十'字型的横向部位,呈现出中部多、四周少的空间分布特点。研究成果可以为土地利用规划政策的制定提供科学依据,为县域土地资源的可持续发展提供参考。

The evolution of spatial pattern of land use change is the premise and foundation of sustainable development of land use.In this paper,suifenhe city,Heilongjiang province was taken as the research area.Based on the land use database of the three phases of 2010,2014 and 2016,using GIS technology to analyze the spatial pattern change characteristics of land use in the research area based on landscape index method and kernel density analysis method.The results showed that the change range of land use in the study area tended to decrease,and all the changes occurred in areas with high patch density and patch edge,and the overall spatial pattern of land use tended to be stable.The cultivated land distribution density is large and evenly distributed in the research area,while the construction land distribution density is small and mainly distributed in the transverse part of the'ten'character,showing the spatial distribution characteristics of more central part and less surrounding area.The research results can provide a scientific basis for the formulation of land use planning policies and a reference for the sustainable development of land resources in county areas.