基于PSR模型和熵权法的南宁市城市土地集约利用评价

以南宁市为例，基于压力-状态-响应(pressure-state-response, PSR)模型建立土地集约利用评价体系，运用熵权法对各项指标测算权重，定量评价南宁市土地集约利用情况。结果表明，2012—2021年南宁市土地集约利用水平不断提高，土地压力系统呈先下降后上升的趋势，土地状态系统呈上升趋势，土地响应状态比较平稳，土地集约利用协调度也处于一个较平稳的状态。南宁市人口密度不断上升，土地压力呈上升趋势，但建设用地增长率逐渐下降，说明南宁市建设用地扩张的趋势有明显的好转。

Evaluation of Urban Land Intensive Use in Nanning City Based on PSR Model and Entropy Weight Method

Taking Nanning City as an example, the evaluation system of land intensive use was established based on PSR model, and the entropy weight method was used to calculate the weight of various indicators to evaluate the situation of land intensive use in Nanning City quantitatively. The results show that the level of land intensive use in Nanning continues to improve from 2012 to 2021, the land pressure system decreases first and then rises, the land state system increases, the land response state is relatively stable, and the coordination degree of land intensive use is also in a stable state. The population density of Nanning City is increasing, and the land pressure is rising, but the growth rate of construction land is decreasing gradually, which indicates that the expansion trend of construction land in Nanning City is obviously improved.