基于主成分分析的南宁市土地生态安全评价

Evaluation of Land Ecological Security in Nanning City Based on Principal Component Analysis

以土地生态安全为理论基础,利用《南宁统计年鉴》和《广西统计年鉴》等资料数据,选取9项指标构建南宁市土地生态安全评价体系,采用SPSS主成分分析方法对2018年南宁市的土地生态安全状况进行分析和评价。结果表明,南宁市市区的安全水平总体高于县级地区;不同地区的生态安全面临着不同程度的威胁。针对存在的生态安全问题提出了相应的解决措施,为促进南宁市经济发展与土地资源可持续利用提供参考依据。

Based on the theoretical basis of land ecological security,nine indicators were selected to construct the land ecological security evaluation system of Nanning City by using the Nanning Statistical Yearbook and the Guangxi Statistical Yearbook.SPSS principal component analysis method was used to analyze and evaluate the land ecological security status of Nanning City in 2018.The results showed that the safety level of Nanning City was generally higher than that of county-level areas.The ecological security of different regions was facing different degrees of threat.In view of the existing ecological security problems,the corresponding solutions were proposed to provide reference basis for promoting the economic development and sustainable use of land resources in Nanning City.