基于产业结构的区域水环境承载力优化方法与例证

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Abstract This study took the maximization of population and economic output as the optimization goal, with the availability of water resources, water environment capacity, and the level of economic and social development as constraints. An optimization model of regional water environment carrying capacity was established, which considers macro industrial structure, planting structure, and breeding structure. It provides a method for regulating water environmental carrying capacity in the areas where planting and breeding are dominant, and enriches the method system. The case study results of Chengde City showed that:(1) under different social, economic and pollution mitigation scenarios, the population and economic output can be increased by 2.6%~29.5% and 18.5%~31.8% respectively, indicating that the level of industrial optimization and pollution control has an important impact on the regional water environment carrying capacity, and there is still much room for population and economic growth in the study area; (2) Controlling the speed of economic and social development, especially optimizing the agricultural planting structure and reducing the livestock and poultry breeding is key to improve the water environment carrying capacity; (3) Under the constraint of water environmental carrying capacity, there is a lower threshold for pollution control indicators such as urban sewage treatment rate, which indicates that the pollution control level in the study area has a short plate effect on water environmental carrying capacity. The optimization model for agricultural planting structure and breeding structure constructed in this paper can provide a novel approach for regulating water environment carrying capacity in areas featured with agricultural non-point source pollution.

Key words： water environmental carrying capacity industrial structure non-point source planting structure breeding structure objective optimization

Received: 08 October 2022

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X321

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	WANG Xi-qin
	JIA Bao-zhen
	JIANG Zhi-qiang
	GAO Wei

Cite this article:

WANG Xi-qin,JIA Bao-zhen,JIANG Zhi-qiang等. Optimization and case study of water environmental carrying capacity based on industrial structure[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(5): 2652-2661.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I5/2652

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