浙江县域土地经济效益空间格局演变及驱动因素研究

以土地投入和土地产出耦合协调度表征土地经济效益,采用空间分析法和地理探测器分析浙江省县域土地经济效益空间格局演变,揭示其演化机理和驱动机制。结果表明:2005~2014年浙江省各县(市)土地经济效益均提高,但空间自相关性降低;土地经济效益县域间差异扩大,空间分布差异性主要体现在东-西方向上;空间分异朝多峰值演化,高值区面积缩减,低值区面积扩张;浙江省土地经济效益主要驱动因素是建成区比重、非农业就业人口、地形起伏度和第三产业比重。分析表明,为提升浙江省土地经济效益,应促进城镇化发展中土地和人口、产业之间的协同发展,提高建成区经济要素投入,提升第三产业比重。

EVOLUTION OF SPATIAL PATTERN OF LAND ECONOMIC BENEFIT AND ITS DRIVING FACTORS IN ZHEJIANG PROVINCE ON COUNTY SCALE

In this paper,the land economic benefit is characterized by the coupling coordination degree of land input and land output.Methods of spatial analysis and geographical detector are applied to analyze the evolution of spatial pattern of land economic benefit in Zhejiang Province on county scale,with an aim to reveal its evolution mechanism and driving factors.The results showed that:1) The land economic benefit in Zhejiang Province is improved while its spatial autocorrelation is reduced from 2005 to 2014.2) The differences of land economic benefit among counties are expanded,particularly from the East to the West.The spatial distribution evolves towards multiple peaks with reduction of high value area and expansion of low value area.3) The main driving factors of land economic benefit are built-up area proportion,non-agriculture employment population,relief degree of land surface and the proportion of the tertiary industry.It concludes that the coordination development of land,population and industry in the process of urbanization,improvement of economic factors input in built-up area and increase of tertiary industry's proportion contribute to land economic benefit in Zhejiang Province.