Spatiotemporal Changes of Land Ecological Security and Its Obstacle Indicators Diagnosis in the Beijing–Tianjin–Hebei Region

Dongyan Guo, Dongyan Wang, Xiaoyong Zhong, Yuanyuan Yang and Lixin Jiang
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Dongyan Guo: College of Earth Sciences, Jilin University, Changchun 130061, China
Dongyan Wang: College of Earth Sciences, Jilin University, Changchun 130061, China
Xiaoyong Zhong: School of Finance and Taxation and Public Administration, Jiangxi University of Finance and Economics, Nanchang 330013, China
Yuanyuan Yang: Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Lixin Jiang: College of Earth Sciences, Jilin University, Changchun 130061, China

Land, 2021, vol. 10, issue 7, 1-16

Abstract: Land ecological security (LES) is a cornerstone of sustainable development, and the study of the LES evaluation has become a hot field in the LES problems. The coordinated development of the Beijing–Tianjin–Hebei (BTH) region is one of China’s national development strategies. With the development of urbanization and industrialization, the conflicts between people and land in this area are increasingly prominent, and there are large regional differences in land ecological quality. To evaluate the land ecological security (LES) of this region, an evaluation index system is constructed based on the pressure–state–response (PSR) framework model, and the entropy-weighted TOPSIS method is applied to calculate the LES index. Then, the spatio-temporal changes of LES in the BTH region from 2007 to 2018 are analyzed. In addition, we adopt an obstacle degree model to analyze the obstacle indicators. The results show that the LES of the BTH region increased from 0.1934 to 0.3284 during 2007–2018, and the LES level increased from the dangerous level (I) to the critical level (III). Despite the improved LES in all areas in the BTH region, there were different trends (high in the central area, relatively low in the northern and southern areas). We identified seven obstacle indicators and discussed different development strategies. Our findings will provide guidelines for land use management and offer references for the coordinated development of the BTH region.

Keywords: land ecological security; entropy-weighted TOPSIS; obstacle degree; Beijing–Tianjin–Hebei; coordinated development (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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