Land Use Evolution and Multi-Scenario Simulation of Shrinking Border Counties Based on the PLUS Model: A Case Study of Changbai County

Bingxin Li, Chennan He, Xue Jiang (), Qiang Zheng and Jiashuang Li
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Bingxin Li: School of Architecture and Urban Planning, Jilin Jianzhu University, Changchun 130118, China
Chennan He: School of Architecture and Urban Planning, Jilin Jianzhu University, Changchun 130118, China
Xue Jiang: School of Architecture and Urban Planning, Jilin Jianzhu University, Changchun 130118, China
Qiang Zheng: School of Architecture and Urban Planning, Jilin Jianzhu University, Changchun 130118, China
Jiashuang Li: School of Architecture and Urban Planning, Jilin Jianzhu University, Changchun 130118, China

Sustainability, 2025, vol. 17, issue 14, 1-29

Abstract: The sharp decline in the population along the northeastern border poses a significant threat to the security of the region, the prosperity of border areas, and the stability of the social economy in our country. Effective management of human and land resources is crucial for the high-quality development of border areas. Taking Changbai County on the northeastern border as an example, based on multi-source data such as land use, the natural environment, climate conditions, transportation location, and social economy from 2000 to 2020, the land use transfer matrix, spatial kernel density, and PLUS model were used to analyze the spatio-temporal evolution characteristics of land use and explore simulation scenarios and optimization strategies under different planning concepts. This study reveals the following: (1) During the study period, the construction land continued to increase, but the growth rate slowed down, mainly transferred from cultivated land and forest land, and the spatial structure evolved from a single center to a double center, with the core always concentrated along the border. (2) The distance to the port (transportation location), night light (social economy), slope (natural environment), and average annual temperature (climate conditions) are the main driving factors for the change in construction land, and the PLUS model can effectively simulate the land use trend under population contraction. (3) In the reduction scenario, the construction land decreased by 1.67 km 2 , the scale of Changbai Town slightly reduced, and the contraction around Malugou Town and Badagou Town was more significant. The study shows that the reduction scenario is more conducive to the population aggregation and industrial carrying capacity improvement of shrinking county towns, which is in line with the high-quality development needs of border areas in our country.

Keywords: PLUS modeling; population decline; border counties; land use; scenario simulation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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