ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Land Use Dynamics
Volume 13 - 2025 | doi: 10.3389/fenvs.2025.1637297
Study on the Multifunctional Evaluation of Cultivated Land and the Evolution of Trade-off/Synergy Relationships in the Sanjiang Plain
Provisionally accepted
- 1Northeast Agricultural University, Harbin, China
- 2Northeast Agricultural University School of Public Administration and Law, Harbin, China
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As the core functional carrier of land resources, cultivated land has a dynamic feedback mechanism between its production, ecological and other functions, and land changes. Analyzing the tradeoffs/synergies among cultivated land functions and formulating differentiated zoning control plans is of great significance for achieving sustainable utilization of the land system. Using grids as evaluation units, this paper quantitatively evaluates the production function, living security function, ecological function, and landscape function of the cultivated land in the Sanjiang Plain for 2005, 2010, 2015, and 2020. The Spearman correlation coefficient method and the bivariate spatial autocorrelation analysis method are adopted to reveal the trade-off/synergy among various functions of the cultivated land. Functional zoning is carried out through self-organizing mapping (SOM) to explore the dynamic evolution of each functional zone and propose corresponding development goals and optimization strategies. The findings indicate that: (1) Between 2005 and 2020, the production function continued to increase, and the living security, ecological, and landscape functions showed a trend of fluctuating increase. (2) There are significant trade-offs or synergy relationships among various functions. The functional synergy between the production-living security function and the production-landscape function is most significant. The trade-off between ecological and production functions is the most prominent. (3) This paper innovatively proposes to divide the Sanjiang Plain into six types of cultivated land functional areas, namely the agriculturally balanced development area; the agro-ecological leisure area; the eco-agricultural development area; the agricultural potential improvement area; the agricultural production-dominated area; and the agricultural living security area, and constructively puts forward the development countermeasures for each functional area.
Keywords: multi-functions of cultivated land, Spatiotemporal variation, land use, Sanjiang Plain, Trade-off/synergy, evolution of zoning
Received: 29 May 2025; Accepted: 23 Jun 2025.
Copyright: © 2025 Wang, Zhao, Guo and Qi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Yinghui Zhao, Northeast Agricultural University, Harbin, China
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