Investigation of correlation between surface runoff rate and stream water quality

The purpose of this study was to investigate the relationship between stream water quality and the surface runoff rate defined as the ratio of annual surface runoff to annual average precipitation. The surface runoff rate was first estimated in the Han River basin located in South Korea using the ca...

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Autores principales:	Sunsook Jang, Hyunseo Ji, Jiyong Choi, Kyo Suh, Hakkwan Kim
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	hspf model imperviousness non-point source pollution receiver operating characteristic curve analysis surface runoff urbanization Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/4ea3f25ef3ed418781527a92705f4bb6
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spelling	oai:doaj.org-article:4ea3f25ef3ed418781527a92705f4bb62021-11-06T07:15:00ZInvestigation of correlation between surface runoff rate and stream water quality1606-97491607-079810.2166/ws.2021.023https://doaj.org/article/4ea3f25ef3ed418781527a92705f4bb62021-06-01T00:00:00Zhttp://ws.iwaponline.com/content/21/4/1495https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The purpose of this study was to investigate the relationship between stream water quality and the surface runoff rate defined as the ratio of annual surface runoff to annual average precipitation. The surface runoff rate was first estimated in the Han River basin located in South Korea using the calibrated and validated HSPF model. Then a linear regression analysis was performed to investigate the correlation between the computed surface runoff rate and the observed water quality. It was found that there were statistically significant relationships between the surface runoff rate and concentrations of BOD, COD, and T-P and higher surface runoff rate led to the deterioration of water quality in streams. Finally, the applicability of the surface runoff rate as an indicator to measure the impact of land development on stream water quality was evaluated using a receiver operating characteristic (ROC) curve analysis. The ROC curve analysis indicated that the surface runoff rate could be utilized as a useful indicator to illustrate the degradation of stream water quality at the watershed scale. The results from this study also suggest that the surface runoff rate needs to be managed and controlled within about 15% to prevent the degradation of stream water quality. HIGHLIGHTS The HSPF model was applied for simulating hydrological components.; The linear regression analysis and receiver operating characteristic (ROC) curve analysis were utilized to analyze the impact of surface runoff rate on water quality.; There were significant relationships between the surface runoff rate and water quality.; Controlling the surface runoff rate within 15% is suggested to prevent the degradation of water quality.;Sunsook JangHyunseo JiJiyong ChoiKyo SuhHakkwan KimIWA Publishingarticlehspf modelimperviousnessnon-point source pollutionreceiver operating characteristic curve analysissurface runoffurbanizationWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 4, Pp 1495-1505 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hspf model imperviousness non-point source pollution receiver operating characteristic curve analysis surface runoff urbanization Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	hspf model imperviousness non-point source pollution receiver operating characteristic curve analysis surface runoff urbanization Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Sunsook Jang Hyunseo Ji Jiyong Choi Kyo Suh Hakkwan Kim Investigation of correlation between surface runoff rate and stream water quality
description	The purpose of this study was to investigate the relationship between stream water quality and the surface runoff rate defined as the ratio of annual surface runoff to annual average precipitation. The surface runoff rate was first estimated in the Han River basin located in South Korea using the calibrated and validated HSPF model. Then a linear regression analysis was performed to investigate the correlation between the computed surface runoff rate and the observed water quality. It was found that there were statistically significant relationships between the surface runoff rate and concentrations of BOD, COD, and T-P and higher surface runoff rate led to the deterioration of water quality in streams. Finally, the applicability of the surface runoff rate as an indicator to measure the impact of land development on stream water quality was evaluated using a receiver operating characteristic (ROC) curve analysis. The ROC curve analysis indicated that the surface runoff rate could be utilized as a useful indicator to illustrate the degradation of stream water quality at the watershed scale. The results from this study also suggest that the surface runoff rate needs to be managed and controlled within about 15% to prevent the degradation of stream water quality. HIGHLIGHTS The HSPF model was applied for simulating hydrological components.; The linear regression analysis and receiver operating characteristic (ROC) curve analysis were utilized to analyze the impact of surface runoff rate on water quality.; There were significant relationships between the surface runoff rate and water quality.; Controlling the surface runoff rate within 15% is suggested to prevent the degradation of water quality.;
format	article
author	Sunsook Jang Hyunseo Ji Jiyong Choi Kyo Suh Hakkwan Kim
author_facet	Sunsook Jang Hyunseo Ji Jiyong Choi Kyo Suh Hakkwan Kim
author_sort	Sunsook Jang
title	Investigation of correlation between surface runoff rate and stream water quality
title_short	Investigation of correlation between surface runoff rate and stream water quality
title_full	Investigation of correlation between surface runoff rate and stream water quality
title_fullStr	Investigation of correlation between surface runoff rate and stream water quality
title_full_unstemmed	Investigation of correlation between surface runoff rate and stream water quality
title_sort	investigation of correlation between surface runoff rate and stream water quality
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/4ea3f25ef3ed418781527a92705f4bb6
work_keys_str_mv	AT sunsookjang investigationofcorrelationbetweensurfacerunoffrateandstreamwaterquality AT hyunseoji investigationofcorrelationbetweensurfacerunoffrateandstreamwaterquality AT jiyongchoi investigationofcorrelationbetweensurfacerunoffrateandstreamwaterquality AT kyosuh investigationofcorrelationbetweensurfacerunoffrateandstreamwaterquality AT hakkwankim investigationofcorrelationbetweensurfacerunoffrateandstreamwaterquality
_version_	1718443793142775808

Investigation of correlation between surface runoff rate and stream water quality

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