globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-3789-2018
论文题名:
Developing a decision support tool for assessing land use change and BMPs in ungauged watersheds based on decision rules provided by SWAT simulation
作者: Qi J.; Li S.; Bourque C.P.-A.; Xing Z.; Meng F.-R.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:7
起始页码: 3789
结束页码: 3806
语种: 英语
Scopus关键词: Calibration ; Decision support systems ; Economics ; Flexible structures ; Land use ; Water resources ; Watersheds ; Best management practice (BMPs) ; Decision support tools ; Distributed hydrological model ; Experimental watersheds ; Large-scale watersheds ; Soil and water assessment tool ; Statistical equations ; Water resources management ; Decision making ; assessment method ; best management practice ; calibration ; decision making ; decision support system ; discharge ; field method ; hydrological modeling ; land use change ; model validation ; quantitative analysis ; scenario analysis ; simulation ; soil and water assessment tool ; water quality ; water resource ; watershed ; Canada ; New Brunswick
英文摘要: Decision making on water resources management at ungauged, especially large-scale watersheds relies on hydrological modeling. Physically based distributed hydrological models require complicated setup, calibration, and validation processes, which may delay their acceptance among decision makers. This study presents an approach to develop a simple decision support tool (DST) for decision makers and economists to evaluate multiyear impacts of land use change and best management practices (BMPs) on water quantity and quality for ungauged watersheds. The example DST developed in the present study was based on statistical equations derived from Soil and Water Assessment Tool (SWAT) simulations and applied to a small experimental watershed in northwest New Brunswick. The DST was subsequently tested against field measurements and SWAT simulations for a larger watershed. Results from DST could reproduce both field data and model simulations of annual stream discharge and sediment and nutrient loadings. The relative error of mean annual discharge and sediment, nitrate-nitrogen, and soluble-phosphorus loadings were-6,-52, 27, and-16%, respectively, for long-term simulation. Compared with SWAT, DST has fewer input requirements and can be applied to multiple watersheds without additional calibration. Also, scenario analyses with DST can be directly conducted for different combinations of land use and BMPs without complex model setup procedures. The approach in developing DST can be applied to other regions of the world because of its flexible structure. © 2018 Author(s).
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被引频次[WOS]:21   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163256
Appears in Collections:气候变化与战略

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作者单位: Qi, J., Earth System Science Interdisciplinary Center, University of Maryland, 5825 University Research Ct, College Park, MD 20740, United States; Li, S., Faculty of Forestry and Environmental Management, University of New Brunswick, P.O. Box 44400, Fredericton, NB E3B5A3, Canada, Potato Research Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, Fredericton, NB E3B4Z7, Canada; Bourque, C.P.-A., Faculty of Forestry and Environmental Management, University of New Brunswick, P.O. Box 44400, Fredericton, NB E3B5A3, Canada; Xing, Z., Faculty of Forestry and Environmental Management, University of New Brunswick, P.O. Box 44400, Fredericton, NB E3B5A3, Canada, Portage la Prairie Site of Brandon Research and Development Centre, Agriculture and Agri-Food CanadaMB, Canada; Meng, F.-R., Faculty of Forestry and Environmental Management, University of New Brunswick, P.O. Box 44400, Fredericton, NB E3B5A3, Canada

Recommended Citation:
Qi J.,Li S.,Bourque C.P.-A.,et al. Developing a decision support tool for assessing land use change and BMPs in ungauged watersheds based on decision rules provided by SWAT simulation[J]. Hydrology and Earth System Sciences,2018-01-01,22(7)
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