1988-2016年婺源县土地利用变化及其影响因素分析
The Analysis on Land Use Change and Its Influencing Factors in Wuyuan County During 1988-2016

利用婺源县1988、2002和2016年3期遥感影像数据,分别从土地利用空间分布、变化速度、区域差异、类型变化等方面分析了婺源县土地利用的动态变化,并在此基础上进一步对土地利用变化的影响因素进行探究.结果表明:(i)在这28年期间,婺源县土地利用总体规模并未发生较大变化,林草用地比例均在80%以上,但有下降趋势;(ii)从变化幅度上看,林草用地和建设用地的变化面积最大.从速度上看,婺源县土地利用整体变化速度极缓慢,其中建设用地相对较快.从相对变化率上看,中心城区紫阳镇的土地利用变化最活跃.从类型转换来看,
In order to investigate the land use and land cover changes(LUCC)with the highly economic development in Wuyuan County,the remote sensing imagery data in the 1988,2002,and 2016 of Wuyuan County is used to analyze the land use in Wuyuan County from the aspects of spatial distribution,change rate,regional differences and types change by land use and land cover.The impact factors of the Land use and land cover changes are investigated on the basis of the LUCC results.The results show that the land use in Wuyuan County has little change in the past 28 years in a general scale,and the forestry and grassland is the main type and has a proportion over 80% with a decreasing trend.From the amplitude of the land use change,the forest and urban area changes a lot.From the perspective of changing speed,the overall changing rate is very slow,of which the urban area is the fastest changing type.Judging from the relative change rate,the activist changing area is the central town in Wuyuan County,Ziyang town.The main types of the mutual transformation are between forestry and agricultural area and they are conversion to urban and water area.Urbanization development and economic development are the main reasons that lead to the change of LUCC in Wuyuan County.The impact of policies and population changes are small.The results can provide some guidance and reference for the land planning management and sustainable use of land resources in Wuyuan County