Spatial Distribution of Non-Point Source Pollution in Nansihu Watershed Based on SWAT Model

Shuang Li; Zu Lu Zhang; Yuan Yuan Sun

doi:10.4028/www.scientific.net/AMR.518-523.2812

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Spatial Distribution of Non-Point Source Pollution...

Spatial Distribution of Non-Point Source Pollution in Nansihu Watershed Based on SWAT Model

Abstract:

Non-point source (NPS) pollution load of N and P in Nansihu watershed were simulated based on SWAT model. The Sihe watershed was selected as typical watershed for east of the lake, and the Dongyu watershed was selected as typical watershed for west of lake. The two typical watersheds were simulated respectively, and then the models were used to simulate the other rivers basins in the Nansihu watershed. Data collected in the period from 2001 to 2007 was used for calibration, while data collected from 2008 to 2010 was used for validation. Then the spatial distribution of NPS pollution in Nansihu watershed (2010) was simulated with the validated model. The result indicated that the SWAT model could simulate the no-point source pollution in Nansihu watershed with high-precision. The watershed was polluted seriously with N and P. The TN was mainly composed of dissolved form, and the TP was mainly composed of adsorbed form.

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Periodical:

Advanced Materials Research (Volumes 518-523)

Pages:

2812-2815

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.518-523.2812

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Online since:

May 2012

Authors:

Shuang Li, Zu Lu Zhang, Yuan Yuan Sun

Keywords:

GIS, Nansihu Lake, Non-Point Source, Spatial Distribution, SWAT Model

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