基于主成分聚类分析的山东省土地生态安全评价及其影响因素分析

发布时间：2018-12-15 00:14

【摘要】：土地生态安全关系着区域生态环境可持续发展及社会经济系统的良性运行,科学评价土地生态安全是生态文明建设的重要内容。本研究基于经济、社会、生态3个维度,构建土地生态安全评价指标体系,借助主成分聚类组合评价模型,对2015年山东省土地生态安全状况进行综合评价,并结合评价结果进行区域等级划分。结果表明,主成分聚类分析结果与实际情况高度吻合;山东省土地生态安全空间分布极不均衡,风险区划之间差异性大,其中土地生态安全低度风险区(第Ⅰ类区域)2个(济南市、青岛市)、中度风险区(第Ⅱ类区域)14个、高度风险区(第Ⅲ类区域)1个(东营市)。今后,山东省除确保Ⅰ类区域2座城市的生态安全水平外,应将土地生态保护工作的重心放在第Ⅱ类区域,谨防其滑入第Ⅲ类区域,同时也要积极投入相应的人力、物力、财力,制定科学有效的政策措施以提高东营市的土地生态安全水平。
[Abstract]:Land ecological security is related to the sustainable development of regional ecological environment and the benign operation of social economic system. Scientific evaluation of land ecological security is an important content of ecological civilization construction. Based on the three dimensions of economy, society and ecology, this paper constructs the evaluation index system of land ecological security, and makes a comprehensive evaluation of the land ecological security in Shandong province in 2015 with the help of the principal component cluster combination evaluation model. And combined with the evaluation results of the regional classification. The results show that the results of principal component clustering analysis are in good agreement with the actual situation. The spatial distribution of land ecological security in Shandong Province is very uneven, and the difference between risk zoning is great. Among them, the low risk area of land ecological security (type I region) is 2 (Jinan city, Qingdao city), and the moderate risk area (type II region) is 14. High risk area (Class III area) 1 (Dongying City). In the future, in addition to ensuring the ecological security level of two cities in the first class region, Shandong Province should focus its land ecological protection work on the second type area, guard against its sliding into the third type area, and actively invest in the corresponding manpower and material resources at the same time. Financial resources, scientific and effective policy measures to improve the land ecological security level in Dongying City.
【作者单位】：贵州大学公共管理学院;
【基金】：国家社会科学基金(编号:17BJY011)
【分类号】：F301.2

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