The Optimal Zoning of Non-Grain-Producing Cultivated Land Consolidation Potential: A Case Study of the Dujiangyan Irrigation District

Qidi Dong (), Qiao Peng, Xiaohong Luo, Heng Lu, Pengman He, Yanling Li, Linjia Wu and Di Li
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Qidi Dong: School of Art and Design, Xihua University, Chengdu 610039, China
Qiao Peng: College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
Xiaohong Luo: College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
Heng Lu: College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
Pengman He: College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
Yanling Li: School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China
Linjia Wu: College of Art, Sichuan Tourism University, Chengdu 610100, China
Di Li: Geophysical Exploration Brigade of Hubei Geological Bureau, Wuhan 430100, China

Sustainability, 2024, vol. 16, issue 17, 1-23

Abstract: Non-grain-producing cultivated land (NGPCL) greatly affects sustainable agricultural development and food security, and its consolidation is important. With the Dujiangyan irrigation district as an example, an empirical study of NGPCL consolidation zoning was performed following the idea of “connotation definition and classification—potential identification—consolidation zoning”. On the basis of expert evaluation, NGPCL was classified into three levels according to the degree of damage to cultivated land by crop type. NGPCL was common in the study area, accounting for 53.8% of the total area. The spatial pattern of NGPCL was characterized as “continuous in the south and scattered in the north”. The assessment of theoretical and realistic NGPCL consolidation potentials suggested that areas with medium consolidation potential exhibited a contiguous distribution in the southern part of the study area, whereas it was dispersed in other regions. The proportion of area suitable for consolidation exceeded 40%. Finally, through a multiobjective optimization algorithm, a potential zoning scheme for NGPCL consolidation was constructed. The final experimental results revealed that the areas with medium or high consolidation potential accounted for 97.54% of the total area. This study is useful for supporting the governance of NGPCL.

Keywords: non-grain production; cultivated land protection; consolidation potential; multi-objective optimization; food security (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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