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Chinese Journal of Applied Ecology ›› 2024, Vol. 35 ›› Issue (1): 255-267.doi: 10.13287/j.1001-9332.202401.019

• Original Articles • Previous Articles     Next Articles

Optimization of production-living-ecology spatial pattern in Dongting Lake Ecological Economic Zone based on comprehensive benefits of development and protection

WAN Ding1,2, WANG Zhiyuan3*, TAN Yong1,2, LI Canbin1,4, CHEN Chao1,4, HE Hanhui5   

  1. 1Hunan Land Resources Planning Institute, Changsha 410004, China;
    2Hunan Provincial Key Laboratory of Land Resources Evaluation and Utilization, Changsha 410007, China;
    3College of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China;
    4Key Laboratory of Natural Resources Monitoring and Supervision in Southern Hilly Region, Ministry of Natural Resources, Changsha 410007, China;
    5College of Civil Engineering and Architecture, Hunan University of Arts and Science, Changde 415000, Hunan, China
  • Received:2023-06-02 Accepted:2023-11-22 Online:2024-01-18 Published:2024-03-21

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Abstract: The optimization of production-living-ecology (PLE) space is an important basis for promoting regional high-quality development. Taking the Dongting Lake Eco-economic Zone as an example, from the perspective of improving the comprehensive benefits of the development and protection of the PLE space, we coupled the GMOP-FLUS model, and proposed an optimization method combining the scenario configuration and the bottom line protection of the PLE space. We compared the three optimization scenarios (economic optimization scenario, ecological optimization scenario, and multi-objective optimization scenario), and coordinated the conflict areas of two lines to clarify the comprehensive optimization scheme of the PLE space in the Dongting Lake Eco-economic Zone. The results showed the characteristics of increasing production space and living space and decreasing ecological space from 2010 to 2020, resulting in the partial loss of land ecological and environmental benefits. Under the economic optimization scenario, the ecological optimization scenario promoted the rapid growth of regional economy but damaged regional ecological security. The ecological optimization scenario inhibited regional economic development. The multi-objective optimization scenario led to improvement of economic and ecological benefits of the PLE space, which increased by 2.0% and 1.3%, respectively. The multi-objective optimization scenario was the best optimization scenario among the three scenarios. By superimposing the best scenario and the two-line conflict regional coordination results, we obtained the comprehensive optimization scheme for 2030. The production space, living space, and ecological space areas of the scheme were 25777.18, 2062.94, and 32552.68 km2, respectively. Based on the natural and social conditions, combining the comprehensive optimization scheme, we put forward different control suggestions for each type of PLE space. Our results could provide reference for the rational formulation of territorial spatial planning and the formulation of policies for the coordinated development of ecological environment and social economy in the Dongting Lake Eco-economic Zone.

Key words: production-living-ecology space, scenario optimization, economic benefit, ecological benefit, two-line conflict regional coordination results, comprehensive optimization scheme