Assessment of Topographic Effect on Habitat Quality in Mountainous Area Using InVEST Model

Qing Xiang, Aike Kan (), Xiaoxiang Yu, Fei Liu, Hong Huang, Wei Li and Rong Gao
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Qing Xiang: College of Earth Science, Chengdu University of Technology, Chengdu 610059, China
Aike Kan: College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China
Xiaoxiang Yu: College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China
Fei Liu: College of Earth Science, Chengdu University of Technology, Chengdu 610059, China
Hong Huang: College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China
Wei Li: College of Earth Science, Chengdu University of Technology, Chengdu 610059, China
Rong Gao: Sichuan Geological Survey Institute, Chengdu 610059, China

Land, 2023, vol. 12, issue 1, 1-17

Abstract: The topographic differentiation patterns of changes in habitat quality are of great significance for the scientific formulation of environmental protection policies in mountainous areas. Here, the distribution, changing trends, and the effects of the topographic gradient on habitat quality were studied using the InVEST model, the topographic distribution index, and the Mann–Kendall test. The results showed that at p < 0.05 (Z = 1.67), the habitat quality from 2000 to 2020 showed three types of trends (significant decline, non-significant change, and significant increase), accounting for 22.2%, 41.8%, and 36% of the changes, respectively. Because of the livelihood structure of the local residents and geological disasters in high-elevation areas, this terrain was the predominant area showing a significant decline in habitat quality. Thanks to the consolidation of projects for the protection of natural forest resources, the return of farmland to forest, and the implementation of projects for protecting the natural forest, the low-lying topography was the predominant area showing a significant increase in habitat quality. The middle topographic position was the predominant area showing no significant changes in habitat quality. Based on the results of the analysis, ecological management and protection measures for high-, medium-, and low-elevation areas were suggested.

Keywords: habitat quality; InVEST model; topographic effect; Mann–Kendall; natural woodland protection project; ecological management policy (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:12:y:2023:i:1:p:186-:d:1027306

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