Land-Use Transformation and Landscape Ecological Risk Assessment in the Three Gorges Reservoir Region Based on the “Production–Living–Ecological Space” Perspective

Tian Liang, Fei Yang, Dan Huang, Yinchen Luo, You Wu and Chuanhao Wen
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Tian Liang: College of Public Management, Chongqing Finance and Economics College, Chongqing 401320, China
Fei Yang: College of Public Management, Chongqing Finance and Economics College, Chongqing 401320, China
Dan Huang: College of Public Management, Chongqing Finance and Economics College, Chongqing 401320, China
Yinchen Luo: Institute of Green Development, Chongqing Finance and Economics College, Chongqing 401320, China
You Wu: Chongqing United Equity Exchange Group Co., Ltd., Chongqing 401121, China
Chuanhao Wen: College of Economics, Yunnan University, Kunming 650091, China

Land, 2022, vol. 11, issue 8, 1-13

Abstract: Rapid urbanization and land-use change cause risk in regional ecological security. It is very significance to explore the evolutionary trend of land-use change and landscape ecological risk (LER) in an ecologically fragile area, especially in terms of maintaining sustainable development in a regional ecological environment. We selected the Three Gorges Reservoir Region (TGRR) as the study area based on land-use and land-cover data for 2000, 2010, and 2020. The land-use classification system used here was constructed using the perspective of the production–living–ecological space (PLES). The GIS spatial-analysis technique and FRAGSTATS 4 software were used. We used the method of the land-use transfer matrix, the landscape ecological risk assessment model, the ecological contribution rate of land-use transfer, and spatial autocorrelation analysis. We performed quantitative analysis of the spatio-temporal pattern of PLES and its LER in the TGRR over the past 20 years. The results show that: (1) The area of human living space (HLS) has expanded significantly—by 1469.37 km 2 (+326.66%), while the area of agricultural production space (APS) has been compressed by both the urban/rural living space (URLS) and the forestland ecological space (FES), particularly during the last 10 years; (2) The overall LER results were medium, but LER is increasing; (3) The LER in the northern area of the Yangtze River is higher than in the south. The Wanzhou district and the downstream areas had a lower LER; and (4) The transformation from agricultural production space to forestland ecological space and urban/rural living space has had a higher contribution rate to the LER compared to other events. These results can be used as a reference for land planning, sustainable development, and ecological civilization construction in ecologically fragile areas.

Keywords: landscape ecological risk; production–living–ecological space; spatio-temporal pattern; Three Gorges Reservoir Region (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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