JOURNAL OF NATURAL RESOURCES ›› 2019, Vol. 34 ›› Issue (3): 526-538.doi: 10.31497/zrzyxb.20190307

• Resources Economics • Previous Articles     Next Articles

Layout optimization of regional urban development and agricultural production based on spatial decision-making: A case study of Linchuan district in Jiangxi province

ZHAO Yue(), LUO Zhi-jun(), CAO Li-ping, ZHONG Shan, ZHAO Jie   

  1. Jiangxi Agricultural University Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province/Academy of Land Resources and Environment, Nanchang 330045, China
  • Received:2018-10-31 Revised:2019-01-19 Online:2019-03-28 Published:2019-03-28

Abstract:

Scientific division of urban development space and agricultural production space is an important way to solve the problems of unregulated urban development and food security. Taking Linchuan district in Jiangxi province as an example, this paper uses ArcGIS, GeoDa software and others to establish a preliminary demarcation of the permanent basic farmland based on the comprehensive quality and autocorrelation of cultivated land in Linchuan district, and uses a multi-criterion CA model to simulate urban expansion. Through the comparison and adjustment of the results of the two aspects, combined with the direction of urban development, urban development model and the farmland natural utility grade, the demarcation of the boundary between the permanent basic farmland and the urban development will be carried out. The results showed that the demarcated area of permanent basic farmland was 593.46 km2. The preliminary delimitation results were mainly distributed in Shangdundu town, Chonggang town, Hejian town, Rongshan town, etc. The comprehensive quality of cultivated land was high, and most of it was high-high gathered area. According to the results of urban expansion simulations, the area of urban construction land in Linchuan district has increased significantly, and the area mainly increased in Zhanping township, Shangdundu town, and Zhongling street. The results of urban development direction analysis and urban expansion model analysis show that the urban construction land in Linchuan district mainly expands to the northwest, southeast, and southwest, and the expansion type is mainly a spreading one. According to the farmland natural utility grade, the initially demarcated permanent basic farmland is divided into an adjustable-in area and an adjustable-out area, so that the optimization and coordination of the permanent basic farmland area and the urban development boundary are carried out, and the final results are obtained between the permanent basic farmland area and the urban development boundary. It is predicted that the boundary area of urban development will reach 142.59 km2 by 2030, with a difference of 4.21 km2 out of a total of preliminary delineation of permanent basic farmland area. The research results can provide reference for the protection of cultivated land resources and avoid the disorderly expansion of cities, and can also provide reference for the future delineation work.

Key words: cultivated land, urban development boundary, autocorrelation, urban expansion simulation, Linchuan district, cultivated land, urban development boundary, autocorrelation, urban expansion simulation, Linchuan district