基于水资源承载力的城市规模研究

Study on Urban Size Based on Water Resources Carrying Capacity

就水资源与城市规模关系的研究而言,学者们对具体城市水资源承载力的应用性研究较多,理论性研究较少。基础理论的缺失必然导致应用性研究出现问题,导致有人对是否客观地存在水资源承载力产生怀疑。本文从承载力的内涵出发,论证了城市水资源承载力存在的客观性;在界定水资源承载力概念的基础上,提出了水资源承载力存在的两个极限:自然极限和社会极限;给出了因学者不同得出城市水资源承载力不同的解释,构建了基于水资源承载力的城市规模模型,并以北京市为例,计算了其水资源承载力。

As for research on relationship between water resources and urban size, scholars made a lot of applied research on city water resources carrying capacity, while theoretical research is less. The deficiency of basic theory must lead to the problems of applied research. Some people will be in doubt about the existence of water resources carrying capacity objectively. From the connotation of carrying capacity, the existence objectivity of urban water resources carrying capacity was argued in this paper. Based on the definition of water resources carrying capacity, the two limits of water resources carrying capacity were brought forward： natural limit and social limit. This paper explained the difference of urban water resources carrying capacity because of the different scholars and structured an urban size model on city water resources carrying capacity. Taking Beijing City as an example, this paper calculated the concerned water resources carrying capacity.