ZHOUMeng-jie,YUANHui-ling.Growth Rate of Stormwater Intensity and Effect of Urbanization in Some Cities of China[J].China Water & Wastewater,2022,38(19):126-131.
Growth Rate of Stormwater Intensity and Effect of Urbanization in Some Cities of China
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第19期
Page:
126-131
Column:
Date of publication:
2022-10-01
- Abstract:
- To improve the design of urban drainage system, it is of great significance to investigate the effect of urbanization on stormwater intensity. Based on the annual maximum precipitation data of seven cities (Beijing, Ganzhou, Hangzhou, Nanning, Shenzhen, Wuhan and Xi’an), the formula of stormwater intensity in each decade was compiled to analyze the interdecadal variation trend of stormwater intensity in each city, and the effects of urbanization degree and climate change on urban precipitation were explored. In addition, according to the old and new stormwater intensity formulas published by 126 cities in the middle and late 20th century and the 21st century, the growth rate of urban stormwater intensity in each return period was calculated, and the spatial distribution of the trend was analyzed. It was found that most of the cities with increasing stormwater intensities were located in coastal or developed areas. It is necessary to update the stormwater intensity formula in some areas to cope with the current precipitation situation.
Last Update:
2022-10-01