Stormwater Management toward Water Supply at the Community Scale—A Case Study in Northern Taiwan

Adaptation measures are necessary for reducing the impacts of extreme climatic events, especially at the community scale. Constructed wetlands and rainwater harvesting systems are commonly used as on-site water supply systems for distributed adaptation. The purpose of this study is to build a commun...

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Published inSustainability Vol. 9; no. 7; p. 1206
Main Authors Li, Yuan-Hua, Tung, Ching-Pin, Chen, Pei-Yuan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 18.07.2017
Subjects
Adaptation
Artificial wetlands
Case studies
Climate change
Computer simulation
Domestic water
Irrigation water
Optimization
Performance evaluation
Rain water
Rainwater recovery systems
Risk assessment
Storm sewers
Stormwater
Stormwater management
Sustainability
Water conservation
Water conveyance
Water demand
Water harvesting
Water shortages
Water supply
Water supply systems
Water use
Water use efficiency
Wetlands
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Summary:Adaptation measures are necessary for reducing the impacts of extreme climatic events, especially at the community scale. Constructed wetlands and rainwater harvesting systems are commonly used as on-site water supply systems for distributed adaptation. The purpose of this study is to build a community water supply model and to evaluate the performance of low impact development (LID) modules as water supply facilities. The community water supply model simulates four water balances, namely, household storage, the constructed wetland, the rainwater harvesting system, and paddy fields. Three performance indicators are utilized, namely, the water saving efficiency, tolerance duration, and water use efficiency. The results show that the rainwater harvesting system saves up to 25.8% of the total domestic water demand, and the constructed wetland saves up to 40% of the irrigation water demand in Xingshi Village, located in northern Taiwan. In conclusion, the constructed wetland and rainwater harvesting system are good candidates for on-site water supply systems at the community scale. However, constructing a community water supply system requires more study, including a climate change risk assessment and the optimization of adaptation measures.
ISSN:2071-1050
2071-1050
DOI:10.3390/su9071206