Spatio-Temporal Evolution of Key Areas of Territorial Ecological Restoration in Resource-Exhausted Cities: A Case Study of Jiawang District, China

Fengyu Wang, Shuai Tong, Yun Chu, Tianlong Liu and Xiang Ji ()
Additional contact information
Fengyu Wang: School of Architecture and Design, China University of Mining and Technology, Xuzhou 221116, China
Shuai Tong: School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
Yun Chu: School of Architecture and Design, China University of Mining and Technology, Xuzhou 221116, China
Tianlong Liu: School of Architecture and Design, China University of Mining and Technology, Xuzhou 221116, China
Xiang Ji: Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology, Jiangsu Vocational Institute of Architectural Technology, Xuzhou 221000, China

Land, 2023, vol. 12, issue 9, 1-25

Abstract: Resource-exhausted cities usually face problems of environmental degradation, landscape fragmentation, and impeded ecological mobility. By clarifying the spatial heterogeneity of ecological restoration needs, efficient and coordinated ecological protection and restoration can be carried out. This study selected Jiawang District, a typical resource-exhausted city, and constructed an ecological security evaluation framework to determine the ecological source area from the three aspects of ecosystem service importance, ecological sensitivity, and landscape stability. The resistance surface was corrected with ecological sensitivity evaluation data, and ecological corridors and ecological nodes were identified using circuit theory. Finally, it explored the spatial and temporal evolution of the key areas of territorial ecological restoration in Jiawang District. This study indicates that: (1) In 2000, 2010, and 2020, the ecological source areas were 123.59 km 2 , 116.18 km 2 , and 125.25 km 2 , and the corresponding numbers of ecological corridors were 53, 51, and 49. The total lengths of the ecological corridors were 129.25 km, 118.57 km, and 112.25 km, mainly distributed in the northern and central areas of the study area. (2) The study area contained 17, 13, and 19 ecological pinch points in 2000, 2010, and 2020, respectively, 16, 20, and 15 ecological obstacle points, and 8, 24, and 33 ecological fracture points, respectively. Targeted rehabilitation of these key areas can significantly improve ecological connectivity. (3) The key area of territorial ecological restoration in 2020 was composed of 125.25 km 2 ecological source area, 8.77 km 2 of ecological pinch point, 12.70 km 2 of ecological obstacle point, and 33 ecological fracture points. According to the present situation of land use, protection strategies are put forward.

Keywords: resource-exhausted city; ecological security pattern; circuit theory; territorial ecological restoration; Jiawang district (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 (1)

Downloads: (external link)
https://www.mdpi.com/2073-445X/12/9/1733/pdf (application/pdf)
https://www.mdpi.com/2073-445X/12/9/1733/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:12:y:2023:i:9:p:1733-:d:1234203

Access Statistics for this article

Land is currently edited by Ms. Carol Ma

More articles in Land from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().