• 研究论文 •

### 基于POET模型的重庆市水资源利用影响因素分析

1. 1兰州大学资源环境学院， 兰州 730000；2兰州大学西部环境教育部重点实验室， 兰州 730000；3兰州大学中国西部循环经济研究中心， 兰州 730000）
• 出版日期:2018-03-10 发布日期:2018-03-10

### Assessment for factors affecting urban water resource utilization in Chongqing based on POET model.

HAN Wen-yan1,3, CHEN Xing-peng1,2,3, ZHANG Zi-long1,2,3*

1. (1College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; 2Key Laboratory of Western China’s Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou 730000, China; 3Research Institute for Circular Economy in Western China, Lanzhou University, Lanzhou 730000, China).
• Online:2018-03-10 Published:2018-03-10

Abstract:

Water is one of the crucial natural resources for human survival and social development. The rational and efficient utilization of water is strategically significant for sustainable development of human beings. At present, many structural factors affect water utilization at urban and national scales. Based on Duncan’s ecological complex (POET) model and the multipleregression analysis method, we investigated the effects of the structural factors of water resourcesutilization on the total amount and intensity of water consumption in Chongqing City, in terms of different dimensions of population, social organization, environment and technology. The results showed that in terms of population dimension, the growth of total population and the proportion of population aged 15-64 years in the total population promoted the increase of the total amount and intensity of water utilization in Chongqing. In terms of social organization dimension, the increases of urbanization rate and the proportion of secondary industry GDP accelerated the increase of the total amount and intensity of water utilization. However, the increases of per capita GDPreduced both parameters. From the aspect of environment dimension, the growth of the ratio of actual use of foreign investment to GDP increased the total amount and intensity of water utilization of Chongqing, while rising water price helped control water consumption and decrease theintensity of water utilization. Finally, the increase of the sewage treatment rate reduced the total amount and intensity of water utilization in terms of the technical dimension.