Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province

To verify the applicability of the SWAT model in runoff calculation in small watershed of Zhejiang province,this paper collects daily records for the past 20 years from Wenling meteorological station,topographic map,land use and soil data,and establishes the SWAT model of the Human reservoir by usin...

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Main Authors: LAN Xuechun, WANYAN Sheng, ZHANG Zhenqi
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2020-01-01
Series:Renmin Zhujiang
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Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.12.005
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author LAN Xuechun
WANYAN Sheng
ZHANG Zhenqi
author_facet LAN Xuechun
WANYAN Sheng
ZHANG Zhenqi
author_sort LAN Xuechun
collection DOAJ
description To verify the applicability of the SWAT model in runoff calculation in small watershed of Zhejiang province,this paper collects daily records for the past 20 years from Wenling meteorological station,topographic map,land use and soil data,and establishes the SWAT model of the Human reservoir by using the SWAT2012 module loaded with Arcgis 10.2 software.In calibration period (1999—2008),R<sup>2</sup> (correlation coefficient) is 0.89 and E<sub>NS</sub> (Nash-Sutcliffe efficiency) is 0.88;in validation period (2009—2018),R<sup>2</sup> is 0.93 and E<sub>NS</sub> is 0.91.With an error of 1.3%,the simulated annual average flow is 0.8 m<sup>3</sup>/s and the observed flow is 0.79 m<sup>3</sup>/s,which indicating a high accuracy of the model.The sensitivity test of input parameters shows that the SOL_AWC.sol (available water capacity of soil) and CN2.mgt (runoff coefficient of different land use) are significant to simulated results.The model can be further used for forecasting the flood process and peak flow of Human reservoir,as well as optimizing the reservoir operation scheme and formulating the protection program of water source.
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institution Kabale University
issn 1001-9235
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series Renmin Zhujiang
spelling doaj-art-946dac4ffa524c029a2050bdddb20a6b2025-01-15T02:29:36ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352020-01-014147648650Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang ProvinceLAN XuechunWANYAN ShengZHANG ZhenqiTo verify the applicability of the SWAT model in runoff calculation in small watershed of Zhejiang province,this paper collects daily records for the past 20 years from Wenling meteorological station,topographic map,land use and soil data,and establishes the SWAT model of the Human reservoir by using the SWAT2012 module loaded with Arcgis 10.2 software.In calibration period (1999—2008),R<sup>2</sup> (correlation coefficient) is 0.89 and E<sub>NS</sub> (Nash-Sutcliffe efficiency) is 0.88;in validation period (2009—2018),R<sup>2</sup> is 0.93 and E<sub>NS</sub> is 0.91.With an error of 1.3%,the simulated annual average flow is 0.8 m<sup>3</sup>/s and the observed flow is 0.79 m<sup>3</sup>/s,which indicating a high accuracy of the model.The sensitivity test of input parameters shows that the SOL_AWC.sol (available water capacity of soil) and CN2.mgt (runoff coefficient of different land use) are significant to simulated results.The model can be further used for forecasting the flood process and peak flow of Human reservoir,as well as optimizing the reservoir operation scheme and formulating the protection program of water source.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.12.005SWAT modelTANK modelsmall watershedrunoff calculationHuman reservoir
spellingShingle LAN Xuechun
WANYAN Sheng
ZHANG Zhenqi
Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
Renmin Zhujiang
SWAT model
TANK model
small watershed
runoff calculation
Human reservoir
title Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
title_full Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
title_fullStr Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
title_full_unstemmed Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
title_short Application of SWAT Model for Runoff Calculation in Small Watershed of Zhejiang Province
title_sort application of swat model for runoff calculation in small watershed of zhejiang province
topic SWAT model
TANK model
small watershed
runoff calculation
Human reservoir
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2020.12.005
work_keys_str_mv AT lanxuechun applicationofswatmodelforrunoffcalculationinsmallwatershedofzhejiangprovince
AT wanyansheng applicationofswatmodelforrunoffcalculationinsmallwatershedofzhejiangprovince
AT zhangzhenqi applicationofswatmodelforrunoffcalculationinsmallwatershedofzhejiangprovince