基于多因素综合评价法的开发区土地集约利用评价及时空分异研究——以重庆市为例

Study on Land Intensive Use Evaluation and Spatial-Temporal Differentiation in Development Zones Based on Multi-Factor Comprehensive Evaluation Method: A Case Study of Chongqing

首先从用地状况、用地效益、用地管理3个方面构建了土地集约利用评价指标体系;采用多因素综合评价模型对重庆市49个开发区土地集约利用程度进行了评价;其次对开发区土地集约利用现状及空间分异特征进行了分析,以2007~2017年为时间序列对土地集约利用动态变化情况进行了分析。结果表明,由于各开发区各指标现状值离散度较大,重庆市开发区整体集约利用度不高;空间分布上主城区、渝西地区等区位、经济条件较好地区的土地集约利用程度高于渝东北、渝东南等生态脆弱、环保要求高的地区;时间序列上重庆市开发区土地集约利用程度呈现逐渐上升的趋势。

Firstly,this paper constructs an evaluation index system of land intensive use from three aspects:land use status,land use efficiency and land use management;then,it evaluates the land intensive use degree of 49 development zones in Chongqing by using multi-factor comprehensive evaluation model;secondly,it analyzes the current situation and spatial differentiation characteristics of land intensive use in development zones,and takes 2007~2017 as a time series to evaluate land intensive use.The dynamic changes were analyzed.The results show that the overall intensive utilization degree of Chongqing Development Zone is not high because of the large dispersion of the current indicators of each development zone;the intensive utilization degree of land in the main urban area,western Chongqing area and other areas with better economic conditions is higher than that in the ecologically fragile and environmentally demanding areas such as northeast Chongqing and Southeast Chongqing;and the intensive utilization degree of land in Chongqing Development Zone is higher in time series.It shows a gradual upward trend.