Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan

Eutrophication is an environmental pollution problem that occurs in natural water bodies. Regression analyses with interaction terms are carried out to identify the factors influencing the Shimen, Mingde, and Fongshan Reservoirs in Taiwan. The results indicate that the main factor influencing these...

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Autores principales:	Cheng-Wei Hung, Lin-Han Chiang Hsieh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	eutrophication variable interactions multiple linear regression reservoir Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/d4b700989c5e4d3fa219998f2f03b03c
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spelling	oai:doaj.org-article:d4b700989c5e4d3fa219998f2f03b03c2021-11-25T19:15:45ZAnalysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan10.3390/w132232282073-4441https://doaj.org/article/d4b700989c5e4d3fa219998f2f03b03c2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3228https://doaj.org/toc/2073-4441Eutrophication is an environmental pollution problem that occurs in natural water bodies. Regression analyses with interaction terms are carried out to identify the factors influencing the Shimen, Mingde, and Fongshan Reservoirs in Taiwan. The results indicate that the main factor influencing these reservoirs is total phosphorus. In the Shimen and Mingde Reservoirs, the influence of total phosphorus, when interacting with other factors, on water quality trophic state is more serious than that of total phosphorus per se. This implies that the actual influence of total phosphorus on the eutrophic condition could be underestimated. Furthermore, there was no deterministic causality between climate and water quality variables. In addition, time lagged effects, or the influence of their interaction with other variables, were considered separately in this study to further determine the actual relationships between water trophic state and influencing factors. The influencing patterns for three reservoirs are different, because the type, size, and background environment of each reservoir are different. This is as expected, since it is difficult to predict eutrophication in reservoirs with a universal index or equation. However, the multiple linear regression model used in this study could be a suitable quick-to-use, case-by-case model option for this problem.Cheng-Wei HungLin-Han Chiang HsiehMDPI AGarticleeutrophicationvariable interactionsmultiple linear regressionreservoirHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3228, p 3228 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	eutrophication variable interactions multiple linear regression reservoir Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	eutrophication variable interactions multiple linear regression reservoir Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Cheng-Wei Hung Lin-Han Chiang Hsieh Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
description	Eutrophication is an environmental pollution problem that occurs in natural water bodies. Regression analyses with interaction terms are carried out to identify the factors influencing the Shimen, Mingde, and Fongshan Reservoirs in Taiwan. The results indicate that the main factor influencing these reservoirs is total phosphorus. In the Shimen and Mingde Reservoirs, the influence of total phosphorus, when interacting with other factors, on water quality trophic state is more serious than that of total phosphorus per se. This implies that the actual influence of total phosphorus on the eutrophic condition could be underestimated. Furthermore, there was no deterministic causality between climate and water quality variables. In addition, time lagged effects, or the influence of their interaction with other variables, were considered separately in this study to further determine the actual relationships between water trophic state and influencing factors. The influencing patterns for three reservoirs are different, because the type, size, and background environment of each reservoir are different. This is as expected, since it is difficult to predict eutrophication in reservoirs with a universal index or equation. However, the multiple linear regression model used in this study could be a suitable quick-to-use, case-by-case model option for this problem.
format	article
author	Cheng-Wei Hung Lin-Han Chiang Hsieh
author_facet	Cheng-Wei Hung Lin-Han Chiang Hsieh
author_sort	Cheng-Wei Hung
title	Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
title_short	Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
title_full	Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
title_fullStr	Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
title_full_unstemmed	Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan
title_sort	analysis of factors influencing the trophic state of drinking water reservoirs in taiwan
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d4b700989c5e4d3fa219998f2f03b03c
work_keys_str_mv	AT chengweihung analysisoffactorsinfluencingthetrophicstateofdrinkingwaterreservoirsintaiwan AT linhanchianghsieh analysisoffactorsinfluencingthetrophicstateofdrinkingwaterreservoirsintaiwan
_version_	1718410125364953088

Analysis of Factors Influencing the Trophic State of Drinking Water Reservoirs in Taiwan

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