黑龙江省土地利用时空格局演变及驱动因素分析

Analysis of Spatio-temporal Pattern Evolution and Driving Factors of Land Use in Heilongjiang Province

利用2000、2010、2020年3期土地利用数据,基于土地利用转移矩阵、地理探测器、重心转移模型等方法,对黑龙江省的土地利用格局及其驱动因素和时空变化规律进行了研究。结果表明:1)黑龙江省耕地呈现先减少后增加的趋势,林地面积呈现先增加后减少的趋势,草地与未利用地的面积逐渐减少;水体与建设用地面积逐渐增多。GDP、DEM、人口是影响黑龙江省土地利用变化的主要驱动因素,各因子的交互作用均表现为非线性增强与双因子增强。2)在各用地类型中,未利用地的重心转移距离最大,向西南方向转移了92 km,耕地重心转移距离最小,向东南方向转移了12.8 km。本研究旨在为黑龙江省土地资源的可持续利用与管理提供科学参考。

Using the land use data of 2000,2010 and 2020,this paper studied the land use pattern,driving factors and spatio-temporal changes in Heilongjiang province based on land use transfer matrix,geographical detector and center of gravity shift model.The results showed that:(1)The cultivated land decreased first and then increased,the forest area increased first and then decreased,and the area of grassland and unused land decreased gradually;Water body and construction land area gradually increased.GDP,DEM and population are the main driving factors affecting land use change in Heilongjiang province,and the interaction of each factor is nonlinear and double-factor enhancement.(2)Among all land types,the center of gravity shift distance of unused land is the largest,which is 92km to the southwest,while the center of gravity shift distance of cultivated land is the smallest,which is 12.8km to the southeast.The purpose of this study is to provide scientific reference for the sustainable utilization and management of land resources in Heilongjiang province.