Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada

Agricultural extensification and forest cover loss can significantly impact aquatic ecosystems. This study considered the conversion of forests to agriculture (and vice versa) in an agriculturally dominated watershed in Eastern Ontario, Canada. A series of de- and reforestation scenarios were develo...

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Autores principales:	M. Noteboom, O. Seidou, D. R. Lapen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	deforestation grassed waterways nitrogen phosphorus swat vegetated strips Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/b6103cf125e8474cb7f3418b47a26aed
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spelling	oai:doaj.org-article:b6103cf125e8474cb7f3418b47a26aed2021-12-02T07:52:06ZPredicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada2709-80442709-805210.2166/wqrj.2021.010https://doaj.org/article/b6103cf125e8474cb7f3418b47a26aed2021-11-01T00:00:00Zhttp://wqrjc.iwaponline.com/content/56/4/218https://doaj.org/toc/2709-8044https://doaj.org/toc/2709-8052Agricultural extensification and forest cover loss can significantly impact aquatic ecosystems. This study considered the conversion of forests to agriculture (and vice versa) in an agriculturally dominated watershed in Eastern Ontario, Canada. A series of de- and reforestation scenarios were developed, and water quantity/quality simulations were executed using the Soil and Water Assessment Tool (SWAT) using 30 years of real-world weather observations. Results indicated that streamflow and sediment loads were not sensitive to forest loss, while continuing the recent rate of deforestation of 0.8% (0.2% of the watershed area) per year would, by 2032, increase annual loads of nitrate by 5.6%, total nitrogen by 1.5%, and total phosphorus by 6.8%. Additionally, the same land-use scenarios were simulated with the inclusion of vegetated filter strips (VFS) and grassed waterways. Some reforestation scenarios were sufficient to reduce total nitrogen concentrations below water quality guidelines, particularly under the combined effect of VFSs along all river reaches. However, meeting water quality guidelines for total phosphorus concentrations requires additional management practices beyond those simulated here. HIGHLIGHTS Forest cover change scenarios were developed for the South Nation watershed, Ontario.; Streamflow/nutrient loads inversely vary with forest cover in SWAT simulations.; Significant reforestation is required to reduce nitrogen below water quality guidelines.; Vegetated filters and grassed waterways can reduce sediment and nutrient exports.; Total phosphorus levels stay above provincial standards in all tested scenarios.;M. NoteboomO. SeidouD. R. LapenIWA Publishingarticledeforestationgrassed waterwaysnitrogenphosphorusswatvegetated stripsEnvironmental technology. Sanitary engineeringTD1-1066ENWater Quality Research Journal, Vol 56, Iss 4, Pp 218-238 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deforestation grassed waterways nitrogen phosphorus swat vegetated strips Environmental technology. Sanitary engineering TD1-1066
spellingShingle	deforestation grassed waterways nitrogen phosphorus swat vegetated strips Environmental technology. Sanitary engineering TD1-1066 M. Noteboom O. Seidou D. R. Lapen Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
description	Agricultural extensification and forest cover loss can significantly impact aquatic ecosystems. This study considered the conversion of forests to agriculture (and vice versa) in an agriculturally dominated watershed in Eastern Ontario, Canada. A series of de- and reforestation scenarios were developed, and water quantity/quality simulations were executed using the Soil and Water Assessment Tool (SWAT) using 30 years of real-world weather observations. Results indicated that streamflow and sediment loads were not sensitive to forest loss, while continuing the recent rate of deforestation of 0.8% (0.2% of the watershed area) per year would, by 2032, increase annual loads of nitrate by 5.6%, total nitrogen by 1.5%, and total phosphorus by 6.8%. Additionally, the same land-use scenarios were simulated with the inclusion of vegetated filter strips (VFS) and grassed waterways. Some reforestation scenarios were sufficient to reduce total nitrogen concentrations below water quality guidelines, particularly under the combined effect of VFSs along all river reaches. However, meeting water quality guidelines for total phosphorus concentrations requires additional management practices beyond those simulated here. HIGHLIGHTS Forest cover change scenarios were developed for the South Nation watershed, Ontario.; Streamflow/nutrient loads inversely vary with forest cover in SWAT simulations.; Significant reforestation is required to reduce nitrogen below water quality guidelines.; Vegetated filters and grassed waterways can reduce sediment and nutrient exports.; Total phosphorus levels stay above provincial standards in all tested scenarios.;
format	article
author	M. Noteboom O. Seidou D. R. Lapen
author_facet	M. Noteboom O. Seidou D. R. Lapen
author_sort	M. Noteboom
title	Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
title_short	Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
title_full	Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
title_fullStr	Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
title_full_unstemmed	Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada
title_sort	predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in eastern ontario, canada
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/b6103cf125e8474cb7f3418b47a26aed
work_keys_str_mv	AT mnoteboom predictingwaterqualitytrendsresultingfromforestcoverchangeinanagriculturallydominatedriverbasinineasternontariocanada AT oseidou predictingwaterqualitytrendsresultingfromforestcoverchangeinanagriculturallydominatedriverbasinineasternontariocanada AT drlapen predictingwaterqualitytrendsresultingfromforestcoverchangeinanagriculturallydominatedriverbasinineasternontariocanada
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Predicting water quality trends resulting from forest cover change in an agriculturally dominated river basin in Eastern Ontario, Canada

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