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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/102855

    Title: Application of the SUSTAIN Model to a Watershed-Scale Case for Water Quality Management
    Authors: Chen, Chi-Feng;Sheng, Ming-Yang;Chang, Chia-Ling;Kang, Shyh-Fang;Lin, Jen-Yang
    Contributors: 淡江大學水資源及環境工程學系
    Keywords: System for Urban Stormwater Treatment and Analysis Integration Model (SUSTAIN);low impact development;sensitivity analysis;watershed management
    Date: 2014-12-01
    Issue Date: 2015-05-07 18:32:58 (UTC+8)
    Publisher: M D P I AG
    Abstract: Low impact development (LID) is a relatively new concept in land use management that aims to maintain hydrological conditions at a predevelopment level without deteriorating water quality during land development. The United States Environmental Protection Agency (USEPA) developed the System for Urban Stormwater Treatment and Analysis Integration model (SUSTAIN) to evaluate the performance of LID practices at different spatial scales; however, the application of this model has been limited relative to LID modeling. In this study, the SUSTAIN model was applied to a Taiwanese watershed. Model calibration and verification were performed, and different types of LID facilities were evaluated. The model simulation process and the verified model parameters could be used in other cases. Four LID scenarios combining bioretention ponds, grass swales, and pervious pavements were designed based on the land characteristics. For the SUSTAIN model simulation, the results showed that pollution reduction was mainly due to water quantity reduction, infiltration was the dominant mechanism and plant interception had a minor effect on the treatment. The simulation results were used to rank the primary areas for nonpoint source pollution and identify effective LID practices. In addition to the case study, a sensitivity analysis of the model parameters was performed, showing that the soil infiltration rate was the most sensitive parameter affecting the LID performance. The objectives of the study are to confirm the applicability of the SUSTAIN model and to assess the effectiveness of LID practices in the studied watershed.
    Relation: Water 6(12), pp.3575-3589
    DOI: 10.3390/w6123575
    Appears in Collections:[Graduate Institute & Department of Water Resources and Environmental Engineering] Journal Article

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