LIHua-yu,JIANGYan-ling.Analysis on the Trend of Water Consumption in Cities Receiving Water from South-to-North Water Diversion Project[J].China Water & Wastewater,2022,38(12):6-13.
Analysis on the Trend of Water Consumption in Cities Receiving Water from South-to-North Water Diversion Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第12期
Page:
6-13
Column:
Date of publication:
2022-06-17
- Keywords:
- South-to-North Water Diversion; water consumption structure; per-capita comprehensive water consumption; interannual changes; allocation of water resources
- Abstract:
- Based on the urban statistical data from 2006 to 2020, this paper analyzed the trend of water consumption in 30 cities within the water-receiving area of South-to-North Water Diversion Project by means of information entropy and equilibrium degree and Spearman rank correlation coefficient, so as to realize the balanced allocation of water resources and guide the implementation of the follow-up projects. During the past 15 years, the proportion of industrial production water consumption in water-receiving cities showed a downward trend, and the proportion of domestic water consumption showed an upward trend. Among the domestic water, the proportion of public service water consumption remained stable at 16%-18%, while the proportion of household water consumption increased from 31% to 40%. The equilibrium degree of water consumption in water-receiving cities increased first and then decreased, and the peak of equilibrium degree appeared later than that of the whole country. The water-receiving cities supported more population growth with less water consumption growth, and the per-capita comprehensive water consumption decreased year by year, and the difference of per-capita comprehensive water consumption among water-receiving cities gradually decreased, indicating that the water-saving performance was good. Domestic water-saving potential was slightly weaker than industrial water-saving potential. However, the correlation between per-capita public service water consumption and urban economic development was stronger.
Last Update:
2022-06-17