Assessment of Land Ecological Security and Analysis of Influencing Factors in Chaohu Lake Basin, China from 1998–2018

Mingxin Wen, Ting Zhang, Long Li, Longqian Chen, Sai Hu, Jia Wang, Weiqiang Liu, Yu Zhang and Lina Yuan
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Mingxin Wen: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China
Ting Zhang: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China
Long Li: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China
Longqian Chen: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China
Sai Hu: School of Humanities and Law, Jiangsu Ocean University, Lianyungang 222005, China
Jia Wang: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China
Weiqiang Liu: School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
Yu Zhang: Institute of Land Resource, School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221116, China
Lina Yuan: School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China

Sustainability, 2021, vol. 13, issue 1, 1-28

Abstract: The land ecosystem provides essential natural resources for the survival and development of human beings. Therefore, land ecological security (LES) acts as a vital part of the sustainable development of human society and economy. This study included a dynamic analysis of land use change in Chaohu Lake Basin (CLB) in China from 1998 to 2018, evaluating the spatiotemporal patterns of LES at both the administrative district scale and grid scale (200 m × 200 m). Then, geographic detector was applied to analyze the influence of the assessment index on LES. The results show that in the 2008–2018 period, land use changed more significantly compared to the 1998–2008 period. The continuous extension of urban land led to a decrease in the areas of other land use types. In the CLB (administrative district scale), the LES levels varied throughout the study period. In Changfeng, Feixi, and the other three regions, the LES has been significantly improved. However, the LES in six other regions showed different degrees of decline, particularly in Hexian and Urban Hefei. Simultaneously, the LES showed a gradual improvement at a 200 m × 200 m grid scale level. The influence of anthropogenic factors on the LES was stronger than natural factors. Findings from this study provide reliable guidance for improving the ecosystem environment in ecologically fragile areas.

Keywords: land use change; land ecological security; PSR framework; influencing factors; Chaohu Lake Basin (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (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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