Study on the coordinated development of urbanization and water resources utilization efficiency in China

The paper uses Lotka-Volterra model to illustrate the synergistic relationship between urbanization and water resources utilization efficiency. Combined with the multi-choice goal programming model, the ideal cooperation coefficient between urbanization and water resources utilization efficiency in each provincial region is calculated under the condition of coordination equilibrium. The results show that the urbanization level of China's provincial regions is uneven. The urbanization level of the eastern coastal developed areas is the highest, followed by the central area, and the western area is the lowest. Guangdong, Jiangsu, Zhejiang, Shanghai, Beijing and Shandong are at a high level of urbanization. The total factor productivity of two-thirds of provincial regions changed to more than one. During the observation period, water use efficiency of most provinces in China has been improved. The distribution characteristics of urbanization level and water resources utilization efficiency are not consistent. There is no mutually beneficial relationship between urbanization and water resources utilization in most provincial regions. In a few areas, there is a partial benefit cooperation relationship between them. There is a mutually beneficial relationship in a few regions. The coordination level of them in the provincial of Chinese mainland is relatively low, and needs to be improved.