基于PSR模型的中国副省级城市土地集约利用时空差异分析  

Study of Spatial-Temporal Differences and Influencing Factors of Urban Land Use Intensity Based on PSR Model in Deputy Provincial Cities in China

作　　者：尹志强[1,2] 杨强[3] 张雪茹[2] 

机构地区：[1]苏州工业园区星汇学校,江苏苏州215025 [2]南京师范大学地理科学学院,江苏南京210023 [3]湘潭大学化工学院,湖南湘潭411105

出　　处：《安徽师范大学学报（自然科学版）》2017年第4期379-385,共7页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金(41571138)

摘　　要：土地利用/土地覆被变化(LUCC)是全球环境变化的主要原因.土地集约利用研究是LUCC研究的主要突破口.PSR模型能更好地反映土地利用过程中人地之间的相互作用关系.本文据此构建评价指标体系,结合熵值法、协调度函数,从时空角度对中国15个副省级城市的土地集约利用状况进行测度和评价.研究结果表明:(1)2010年以来,15个副省级城市的土地利用集约度呈非严格的增长趋势,空间上呈不均衡的空间分布状态.(2)城市土地集约利用程度与PSR系统内部协调度呈正相关关系,即PSR系统内部协调性越高,城市土地集约利用程度越高,反之亦然.(3)根据灰色关联分析得出,经济因素是影响土地集约利用的主要因素,环境因素是主要限制因素.Land use/land cover change （LUCC） is the main cause of global environmental change. Land intensive use is a major breakthrough of LUCC research. PSR model can better reflect the relationship between people and land in the land use process. In this paper, on the basis of this we construct evaluation index system, and combine the entropy method, coordination degree function, and are from two angles of time and space to measure and evaluate the situation of the intensive utilization of land of 15 deputy provincial cities in China. The results show ： （1） Since 2010, growth trend of land use of 15 deputy provincial cities is not strict and in the space, the basic situation is “south high north lo w, east high west low” . （2）The urban land intensive use degree was positively associated with internal coordination degree of PSR system. In other words, the higher the PSR system internal coordination degree, the urban land intensive use degree is higher, and vice versa. （3）According to the grey correlation analysis, we find that the economic factors are the main factors of influencing the land intensive utilization degree and environmental factors are the main limiting factor.

关 键 词：土地集约利用 PSR模型 熵值法 灰熵模型 协调度函数 副省级城市 

分 类 号：F293.2[经济管理—国民经济]