吉林省土地资源承载力时空分异特征及障碍因子分析

Spatial-Temporal Evolution Characteristics and Obstacle Factors of Land Resources Carrying Capacity in Jilin Province

探讨吉林省土地资源承载力时空分异特征及其障碍因子.选择吉林省8个地级市为研究对象,构建吉林省土地资源承载力系统评价指标体系,分析2012-2021年吉林省各地级市土地资源承载力时空演变特征及主要障碍因子.结果表明:吉林省8个地级市的土地资源承载力区域差异随着时间发展不断扩大,长春市土地资源承载力指数具有明显的增长趋势,其余城市波动变化不大,主要表现为以长春市为中心的区域极化现象;无论是从吉林省整体来看,还是从各地级市来看,林地占比、单位工业用地工业产出、单位商服用地三产产出和地均GDP是影响土地资源承载力的主要障碍因子;建设用地占比和未利用地占比等因子对吉林省土地资源承载力的影响程度较弱.

This paper discusses the spatial-temporal evolution characteristics and Obstacle Factors of Land Resources Carrying Capacity in Jilin Province.Taking 8 prefecture-level cities in Jilin Province as the research object,and constructs a systematic evaluation index system of land resources carrying capacity in Jilin Province,analyzes the temporal and spatial evolution characteristics and main obstacle factors of land resources carrying capacity of each city in Jilin Province from 2012 to 2021.The results show that:The regional difference of land resources carrying capacity of 8 cities in Jilin Province expands with the development of time,the land resources carrying capacity index of Changchun City has an obvious growth trend,while other cities fluctuate little.It is mainly manifested in the regional polarization phenomenon centered on Changchun City;Whether looking at Jilin Province as a whole or at each city,the proportion of forested land,industrial output per unit of industrial land,tertiary output per unit of commercial and service land,and per GDP of land are the mainly obstacle factors that affect the land resources carrying capacity.Factors such as the proportion of construction land and the proportion of unutilized land have a weak influence on the carrying capacity of land resources in Jilin Province.