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随着人类社会的发展进步及城市化进程的加快,人类活动对水资源的需求日益增加.水循环也从最初的自然水循环演变成“自然-社会”二元水循环.二元水循环理论的提出,为水文水资源学科的发展指明了新方向.迄今为止仍然没有统一的数理公式对二元水循环过程进行精确描述.本研究以城市为重点,深入剖析了社会经济用水需求对水循环的干扰和驱动原理,通过类比物理学中的麦克斯韦方程组,初步定义了城市水资源需求场——“水场”的概念,提出了城市“水场”强度的计算公式.以海河流域22个主要城市为例,应用水场强度计算公式定量描述了海河流域的水场强度,分析了水资源的流动趋势.结果表明,水场强度公式能够较好地描述城市水资源的驱动力和流动趋势.
With the development of human society and the acceleration of urbanization, the human resources demand for water resources is increasing day by day. The water cycle has also evolved from the initial natural water cycle into a “natural-social” binary water cycle. , Which pointed out a new direction for the development of hydrology and water resources disciplines.However, there is still no unified mathematical formula to accurately describe the process of binary water cycle.This study focused on the city, in-depth analysis of the socio-economic water demand on the water cycle disturbance and drive Principle, through the Maxwell equations in analogical physics, initially defines the concept of urban water demand field - “water”, and puts forward the calculation formula of city "water As an example, the strength of the water field in the Haihe River Basin is quantitatively described by using the formula for calculating the strength of the water field, and the trend of water resources flow is analyzed. The results show that the formula of water field intensity can better describe the driving force and flow tendency of urban water resources .