Evaluation of non-point source pollution reduction by applying Best Management Practices using a SWAT model and QuickBird high resolution satellite imagery

被引：68
|
作者：
Lee, MiSeon [2 ]
Park, GeunAe [1 ]
Park, Minji [1 ]
Park, JongYoon [1 ]
Lee, JiWan [1 ]
Kim, SeongJoon [1 ]
机构：
[1] Konkuk Univ, Dept Civil & Environm Syst Engn, Seoul 143701, South Korea
[2] Konkuk Univ, Dept Rural Engn, Seoul 143701, South Korea
来源：
JOURNAL OF ENVIRONMENTAL SCIENCES | 2010年 / 22卷 / 06期
关键词：
QuickBird; land use; Soil and Water Assessment Tool; best management practice; non-point source; BMP IMPACTS; RUNOFF; SEDIMENT; FERTILIZER;
D O I：
10.1016/S1001-0742(09)60184-4
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study evaluated the reduction effect of non-point source pollution by applying best management practices (BMPs) to a 1.21 km(2) small agricultural watershed using a SWAT (Soil and Water Assessment Tool) model. Two meter QuickBird land use data were prepared for the watershed. The SWAT was calibrated and validated using daily streamflow and monthly water quality (total phosphorus (TP), total nitrogen (TN), and suspended solids (SS)) records from 1999 to 2000 and from 2001 to 2002. The average Nash and Sutcliffe model efficiency was 0.63 for the streamflow and the coefficients of determination were 0.88, 0.72, and 0.68 for SS, TN, and TP, respectively. Four BMP scenarios viz, the application of vegetation filter strip and riparian buffer system, the regulation of Universal Soil Loss Equation P factor, and the fertilizing control amount for crops were applied and analyzed.
引用
收藏
页码：826 / 833
页数：8
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