Construction of Ecological Security Pattern Based on the Importance of Ecological Protection—A Case Study of Guangxi, a Karst Region in China

Yanping Yang, Jianjun Chen, Renjie Huang, Zihao Feng, Guoqing Zhou, Haotian You and Xiaowen Han
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Yanping Yang: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Jianjun Chen: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Renjie Huang: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Zihao Feng: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Guoqing Zhou: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Haotian You: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China
Xiaowen Han: College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China

IJERPH, 2022, vol. 19, issue 9, 1-22

Abstract: The ecological security pattern is an important way to coordinate the contradiction between regional economic development and ecological protection and is conducive to promoting regional sustainable development. This study examines Guangxi, a karst region in China. The ecosystem service function and ecological environment sensitivity were both selected to evaluate the ecological conservation importance, and based on the results of the ecological conservation importance evaluation, suitable patches were selected as ecological sources. Meanwhile, resistance factors were selected from both natural factors and human activities to construct a comprehensive resistance surface, circuit theory was used to identify ecological corridors, ecological pinch points, and ecological barrier points, and ecological protection suggestions were then proposed. The results show that there are 50 patches of ecological sources in Guangxi, with a total area of 60,556.99 km 2 ; 115 ecological corridors, with the longest corridor reaching 194.97 km; 301 ecological pinch points, whose spatial distribution is fragmented; and 286 ecological barrier points, most of which are concentrated in the central part of Guangxi. The results of this study provide a reference for the construction of ecological security patterns and ecological conservation in developing countries and karst areas.

Keywords: ecosystem service function importance assessment; ecological sensitivity assessment; circuit theory; ecological corridor; ecological security pattern (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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