Choosing the LID for Urban Storm Management in the South of Taiyuan Basin by Comparing the Storm Water Reduction Efficiency
| Autor: | Yintang Wang, Yuqiao Long, Tingting Cui |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Hydrology
continuous porous pavement urban storm water management Geography Planning and Development Stormwater Storm Aquatic Science Biochemistry PCSWMM Rain garden rain garden Impervious surface Environmental science Drainage Surface runoff Low-impact development Ponding Water Science and Technology low impact development |
| Zdroj: | Water Volume 11 Issue 12 |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w11122583 |
| Popis: | Low impact development (LID) is a storm management philosophy. This paper aims at choosing the LID for urban storm management by comparing the efficiency in the south urban district in the Taiyuan Basin. Firstly, we set up a 1D&ndash 2D model to simulate the hydrological and hydraulic process of the area. Then the efficiency of different LID scenarios was analyzed by ratio of surcharging pipeline, percentage of ponding road, external outflow, infiltration, surface runoff, facility storage, and LID area ratio. It was found that the continuous porous pavement and rain garden are beneficial for use in residential and commercial settings in urban areas, and the rain garden performs more effectively and efficiently than the continuous porous pavement. The area occupied by LID might be under 20% of the impervious building area, because the LID performance was not improved significantly with the LID area when the ratio exceeded 20%. The LIDs could be more useful for small return periods and short duration storms, and could not replace conventional runoff management practices and drainage systems. |
| Databáze: | OpenAIRE |
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