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DOI | 10.1061/(ASCE)EE.1943-7870.0000770 |
Alternative Land-Use Method for Spatially Informed Watershed Management Decision Making Using SWAT | |
Karcher, Sandra C.1; VanBriesen, Jeanne M.1; Nietch, Christopher T.2 | |
发表日期 | 2013-12-01 |
ISSN | 0733-9372 |
卷号 | 139期号:12页码:1413-1423 |
英文摘要 | In this study, a modification is proposed to the Soil and Water Assessment Tool (SWAT) to enable identification of areas where the implementation of best management practices would likely result in the most significant improvement in downstream water quality. To geospatially link potential locations to individual land owners, a land-use layer that incorporated specific crops and crop rotations needed to be developed. Model results obtained using the new land-use layer are compared to those obtained using a more conventional land-use layer. Results indicate that water flow and nutrient loadings are similar at the basin outlet, confirming the overall consistency of the approach. Water flow results at upland subbasin outlets appear similar; however, nutrient loadings are different since the crop distributions in the alternative approach are more representative of actual practice in the basin. These results suggest that the alternative, crop-rotation-specific method can be used to provide additional information for spatially resolved decision making regarding nutrient loading and downstream nutrient concentrations. |
英文关键词 | ArcSWAT;Best management practice;Land use;National Agricultural Statistics Service Cropland Data Layer;National Land Cover Database;Soil and Water Assessment Tool Modeling |
语种 | 英语 |
WOS记录号 | WOS:000329897000001 |
来源期刊 | JOURNAL OF ENVIRONMENTAL ENGINEERING
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/57265 |
作者单位 | 1.Carnegie Mellon Univ, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA; 2.US EPA, Off Res & Dev, Natl Risk Management Res Lab, Water Supply Water Resources Div,Water Qual Manag, Cincinnati, OH 45268 USA |
推荐引用方式 GB/T 7714 | Karcher, Sandra C.,VanBriesen, Jeanne M.,Nietch, Christopher T.. Alternative Land-Use Method for Spatially Informed Watershed Management Decision Making Using SWAT[J]. 美国环保署,2013,139(12):1413-1423. |
APA | Karcher, Sandra C.,VanBriesen, Jeanne M.,&Nietch, Christopher T..(2013).Alternative Land-Use Method for Spatially Informed Watershed Management Decision Making Using SWAT.JOURNAL OF ENVIRONMENTAL ENGINEERING,139(12),1413-1423. |
MLA | Karcher, Sandra C.,et al."Alternative Land-Use Method for Spatially Informed Watershed Management Decision Making Using SWAT".JOURNAL OF ENVIRONMENTAL ENGINEERING 139.12(2013):1413-1423. |
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