Measurement of Land Ecological Security in the Middle and Lower Reaches of the Yangtze River Base on the PSR Model

Song Yu, Lulu Yang, Zhenjiang Song, Wenbo Li, Yongmei Ye and Bin Liu ()
Additional contact information
Song Yu: Nanchang Business College, Jiangxi Agricultural University, Jiujiang 332020, China
Lulu Yang: College of Economic Management, Henan Agricultural University, Zhenzhou 450046, China
Zhenjiang Song: College of Economic Management, Jiangxi Agricultural University, Nanchang 330045, China
Wenbo Li: Nanchang Business College, Jiangxi Agricultural University, Jiujiang 332020, China
Yongmei Ye: College of Economic Management, Jiangxi Agricultural University, Nanchang 330045, China
Bin Liu: “Three Rural” Issues Research Center, Jiangxi Agricultural University, Nanchang 330045, China

Sustainability, 2023, vol. 15, issue 19, 1-16

Abstract: To accurately identify the land ecological security in the middle and lower reaches of the Yangtze River, we measured the land ecological security based on the PSR model, selected a total of 19 indicators, such as population density, and applied the methods of system evaluation value conversion, comprehensive evaluation value and coordination degree measurement to study the land ecological security in the region. Research findings: The comprehensive evaluation level showed that Jiangxi, Shanghai, and Hunan had comprehensive evaluation values according to the regional forefront. The subsystem evaluation level showed that Shanghai and Hunan had higher pressure subsystem evaluation values relative to other provinces; Shanghai, Zhejiang, and Anhui had higher state subsystem evaluation values relative to other provinces; and Jiangxi was much more responsive to land ecological security issues than were other provinces and cities in the region. The system coordination degree showed that the comprehensive evaluation value of land ecological safety and the coordination degree evaluation value of other provinces except Shanghai and Hunan showed a negative correlation, indicating certain land ecological safety problems in the region. Finally, suggested reflections based on the conclusions are presented.

Keywords: PSR model; land ecological security; sustainable development; middle and lower reaches of the Yangtze River (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (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/2071-1050/15/19/14098/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/19/14098/ (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:jsusta:v:15:y:2023:i:19:p:14098-:d:1246230

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

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