Hydrologic-environmental effects of sponge city under different spatial scales
The storm water management models were established at three spatial scales (large, medium, and small) based on a sponge city pilot area in China to explore the hydrological and environmental effects of rainfall conditions and development modes. Results showed the following. (1) Total runoff reductio...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2020-03-01
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| Series: | Journal of Water Reuse and Desalination |
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| Online Access: | http://jwrd.iwaponline.com/content/10/1/45 |
| _version_ | 1798045531876884480 |
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| author | Jiake Li Cong Mu Chenning Deng Menghua Ma |
| author_facet | Jiake Li Cong Mu Chenning Deng Menghua Ma |
| author_sort | Jiake Li |
| collection | DOAJ |
| description | The storm water management models were established at three spatial scales (large, medium, and small) based on a sponge city pilot area in China to explore the hydrological and environmental effects of rainfall conditions and development modes. Results showed the following. (1) Total runoff reduction rates increased from 26.7% to 53.9% for the rainfall event of a 2-year recurrence period as the scale increased. For 5-year and above recurrence periods, total runoff reduction rates were 19.5–49.4%. These rates increased from the small to medium scale and slightly decreased from the medium to large scale. (2) The runoff coefficients were 0.87–0.29, which decreased from the small to medium scale and were basically constant from the medium to large scale. (3) The peak flow reduction rates decreased with increased recurrence periods. The rates increased initially and then decreased at the small scale, whereas the opposite trend occurred at the medium scale. (4) The reduction rates of pollutants were negatively correlated with recurrence periods under the three spatial scales. The pollution load reduction rates were 19.5–54.7%, which increased from the small to medium scale and were basically constant from the medium to large scale. |
| first_indexed | 2024-04-11T23:22:30Z |
| format | Article |
| id | doaj.art-ba7320f998ae43839443a6c649f4eebe |
| institution | Directory Open Access Journal |
| issn | 2220-1319 2408-9370 |
| language | English |
| last_indexed | 2024-04-11T23:22:30Z |
| publishDate | 2020-03-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Journal of Water Reuse and Desalination |
| spelling | doaj.art-ba7320f998ae43839443a6c649f4eebe2022-12-22T03:57:25ZengIWA PublishingJournal of Water Reuse and Desalination2220-13192408-93702020-03-01101455610.2166/wrd.2019.046046Hydrologic-environmental effects of sponge city under different spatial scalesJiake Li0Cong Mu1Chenning Deng2Menghua Ma3 State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China College of Water Sciences, Beijing Normal University, Beijing 100875, P.R. China State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China The storm water management models were established at three spatial scales (large, medium, and small) based on a sponge city pilot area in China to explore the hydrological and environmental effects of rainfall conditions and development modes. Results showed the following. (1) Total runoff reduction rates increased from 26.7% to 53.9% for the rainfall event of a 2-year recurrence period as the scale increased. For 5-year and above recurrence periods, total runoff reduction rates were 19.5–49.4%. These rates increased from the small to medium scale and slightly decreased from the medium to large scale. (2) The runoff coefficients were 0.87–0.29, which decreased from the small to medium scale and were basically constant from the medium to large scale. (3) The peak flow reduction rates decreased with increased recurrence periods. The rates increased initially and then decreased at the small scale, whereas the opposite trend occurred at the medium scale. (4) The reduction rates of pollutants were negatively correlated with recurrence periods under the three spatial scales. The pollution load reduction rates were 19.5–54.7%, which increased from the small to medium scale and were basically constant from the medium to large scale.http://jwrd.iwaponline.com/content/10/1/45low-impact developmentpollution loadrunoff coefficientspatial scaleswmm |
| spellingShingle | Jiake Li Cong Mu Chenning Deng Menghua Ma Hydrologic-environmental effects of sponge city under different spatial scales Journal of Water Reuse and Desalination low-impact development pollution load runoff coefficient spatial scale swmm |
| title | Hydrologic-environmental effects of sponge city under different spatial scales |
| title_full | Hydrologic-environmental effects of sponge city under different spatial scales |
| title_fullStr | Hydrologic-environmental effects of sponge city under different spatial scales |
| title_full_unstemmed | Hydrologic-environmental effects of sponge city under different spatial scales |
| title_short | Hydrologic-environmental effects of sponge city under different spatial scales |
| title_sort | hydrologic environmental effects of sponge city under different spatial scales |
| topic | low-impact development pollution load runoff coefficient spatial scale swmm |
| url | http://jwrd.iwaponline.com/content/10/1/45 |
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