抚仙湖流域土地集约利用动态变化研究

Dynamic Change of Land Intensive Use in Fuxian Lake Basin

随着城市化与工业化进程的不断推进土地节约集约利用变得越来越重要。为研究抚仙湖流域土地集约利用的现状,本文采用了熵权法、多因素综合分析法,科学地构建了抚仙湖流域包括人口、经济和社会等多因素的综合评价指标体系,计算出2010-2018年流域内土地集约利用水平。结果显示抚仙湖流域土地集约利用具有明显的阶段性特征,2010-2018年土地集约利用度的变化呈现出先下降,然后快速增长,再缓慢增长的趋势;2010-2012年为中度粗放;2013-2015年为低度集约;2016-2018年为中度集约,总体水平呈现出上升趋势。影响抚仙湖流域的土地利用变化的原因是社会经济的不断发展,对土地资源的需求在不断的发生变化,致使抚仙湖流域的土地利用从粗放到集约的转变。

With the continuous advancement of urbanization and industrialization,intensive land use has become increasingly important.In order to study the current situation of land intensive use in Fuxian Lake Basin,this paper uses entropy weight method and multi-factor comprehensive analysis method to scientifically construct a comprehensive evaluation index system of Fuxian Lake Basin,including population,economy and society,and calculate the level of land intensive use in the basin from 2010 to 2018.The results show that the intensive land use in Fuxian Lake Basin has obvious stage characteristics.From 2010 to 2018,the change of intensive land use degree shows a trend of first decreasing,then rapid growth,and then slow growth.2010-2012 was moderate extensive.Low intensity 2013-2015.2016-2018 was moderate intensive,and the overall level showed an upward trend.The reason of land use change in Fuxian Lake Basin is the continuous development of social economy,and the demand for land resources is constantly changing,resulting in the change of land use in Fuxian Lake Basin from extensive to intensive.