摘要
Abstract
In-depth exploration of the spatial-temporal evolution and obstacle factors of comprehensive land carrying capacity is of great significance for promoting the sustainable application of land resources and harmonious economic and social development.This study focuses on 14 prefecture-level cities in Liaoning Province,and constructs an evaluation index system of land carrying capacity considering four dimensions:economic and social factors,land resources,ecological environment,and science and education management.Using the entropy weight method and obstacle degree model,the study measures the land carrying capacity of Liaoning Province from 2003 to 2022,analyzes its spatial-temporal evolution characteristics,and identifies its obstacle factors.The results show that from 2003 to 2022,the land carrying capacity of Liaoning Province exhibited a fluctuating upward trend,with regional disparities gradually widening.Spatially,the land carrying capacity shows a dispersed distribution,presenting a"ridge"pattern centered on Shenyang and Dalian,with these cities serving as the"dual core."The ecological environment and land resources are the main subsystems limiting the improvement of land carrying capacity in Liaoning Province,with the green coverage rate of built-up areas being the primary obstacle factor.Moreover,the obstacle degree distribution across cities exhibits significant regional variation.关键词
土地综合承载力/障碍因子/时空分异/辽宁省Key words
land carrying capacity/obstacle factors/spatial-temporal differentiation/Liaoning Province
