Resources Science ›› 2019, Vol. 41 ›› Issue (4): 717-728.doi: 10.18402/resci.2019.04.09

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Spatial optimization of land use based on the objective of coordinated ecological protection and economic development in Zhengzhou City

CHEN Hong1,2, SHI Yunyang1,2, KE Xinli3, HAO Jinmin1,2, CHEN Aiqi1,2   

  1. 1. College of Land Science and Technology, China Agricultural University, Beijing 100193, China;
    2. Key Laboratory for Agricultural Land Quality Monitoring and Control, Ministry of Land and Resources, Beijing100193, China;
    3. College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2018-10-15 Revised:2019-03-06 Published:2019-04-25

Abstract: Ecological land being converted into construction land is ubiquitous under the background of rapid urbanization in China, and coordinating economic development and ecological protection is a great challenge for the country. This study took Zhengzhou City as an example and carried out the spatial optimization of land use with the balance between ecological benefits and economic benefits as the objective, and by using the LANDSCAPE model. The results suggest that: (1) Using 2008 as the benchmark year and simulating the land-use layout in 2020 and with the requirements of cultivated land protection and meeting construction land demand both satisfied, the optimized scenario’s ecological and economic benefits are 31.5 million yuan and 4,900 million yuan higher than the planning scenario. The former can achieve the coordination of economic development and ecological protection; (2) The simulation results under the two scenarios show that the construction land allocation is concentrated in areas with faster economic development and lower ecological benefits. Under the optimized scenario, more construction land is allocated to Xingyang City, Xinmi City, and Dengfeng City. Under the planning scenario, more construction land is allocated to Jinshui District, Huiji District and Zhongmu County because of the already fixed quota. The optimized allocation is more in line with the current economic development trend of Zhengzhou City, better for regional ecological protection, and can alleviate the fragmentation of land use to a certain extent; (3) The problem that the traditional method of urban and rural construction land allocation does not take into account the spatial heterogeneity of ecological and economic benefits can be solved by the LANDSCAPE model, in which the goal of economic and ecological benefits coordination can be achieved. Ecological protection and economic development play an important role in regional sustainable development, and it is beneficial to coordinate the relationship between them by allocating the different types of land use in various regions reasonably.

Key words: ecological protection and economic development coordination, spatial optimization, land use, LANDSCAPE model, Zhengzhou City