Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan

This study investigates changes in the hydrologic regime of the Chitral River, Hindukush–Karakoram–Himalayan (HKH) region, Pakistan. Different statistically based methods were used to assess climate change-induced hydrologic alterations that can possibly impact aquatic habitat in the study region. T...

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Autores principales:	M. Usman, X. Pan, D. Penna, B. Ahmad
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	aquatic ecosystem chitral river basin climate change hbv hydrological modeling iha rva Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/536824962d674a57bc9d606c5a2ac356
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spelling	oai:doaj.org-article:536824962d674a57bc9d606c5a2ac3562021-11-05T19:01:23ZHydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan2040-22442408-935410.2166/wcc.2020.073https://doaj.org/article/536824962d674a57bc9d606c5a2ac3562021-08-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/5/1471https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354This study investigates changes in the hydrologic regime of the Chitral River, Hindukush–Karakoram–Himalayan (HKH) region, Pakistan. Different statistically based methods were used to assess climate change-induced hydrologic alterations that can possibly impact aquatic habitat in the study region. The hydrological model Hydrologiska Byråns Vattenbalansavdelning (HBV) was calibrated, validated, and applied to predict streamflow in the Chitral River basin. The HBV model was forced with the ensemble of four general circulation models under different representative concentration pathway emission scenarios to generate future streamflow under climate change conditions in the basin for the mid-twenty-first century. The results of this study show that hydrologic regimes in the study area, expressed by the magnitude, duration, frequency, timing, and rate of streamflow, are likely to alter in the future. Positive (i.e., with increased frequency) hydrologic alteration is projected for most flow parameters under all scenarios for the 2021–2050 period compared with values observed during the historical period (1976–2005). These hydrologic alterations might have impacts on fish and migratory bird species in the study area. This research can be helpful in providing practical information for more effective water resources and aquatic ecosystem management in the HKH region. HIGHLIGHTS Investigation of changes in the hydrologic regime of the Chitral River.; Employment of IHA and RVA methods to evaluate riverine ecosystem health.; Hydrological modeling using HBV-light to generate future streamflow.; Assessment of climate change impacts on different streamflow characteristics.; Analysis of streamflow changes and their relationship with aquatic habitat.;M. UsmanX. PanD. PennaB. AhmadIWA Publishingarticleaquatic ecosystemchitral river basinclimate changehbvhydrological modelingiharvaEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 5, Pp 1471-1486 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aquatic ecosystem chitral river basin climate change hbv hydrological modeling iha rva Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	aquatic ecosystem chitral river basin climate change hbv hydrological modeling iha rva Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 M. Usman X. Pan D. Penna B. Ahmad Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
description	This study investigates changes in the hydrologic regime of the Chitral River, Hindukush–Karakoram–Himalayan (HKH) region, Pakistan. Different statistically based methods were used to assess climate change-induced hydrologic alterations that can possibly impact aquatic habitat in the study region. The hydrological model Hydrologiska Byråns Vattenbalansavdelning (HBV) was calibrated, validated, and applied to predict streamflow in the Chitral River basin. The HBV model was forced with the ensemble of four general circulation models under different representative concentration pathway emission scenarios to generate future streamflow under climate change conditions in the basin for the mid-twenty-first century. The results of this study show that hydrologic regimes in the study area, expressed by the magnitude, duration, frequency, timing, and rate of streamflow, are likely to alter in the future. Positive (i.e., with increased frequency) hydrologic alteration is projected for most flow parameters under all scenarios for the 2021–2050 period compared with values observed during the historical period (1976–2005). These hydrologic alterations might have impacts on fish and migratory bird species in the study area. This research can be helpful in providing practical information for more effective water resources and aquatic ecosystem management in the HKH region. HIGHLIGHTS Investigation of changes in the hydrologic regime of the Chitral River.; Employment of IHA and RVA methods to evaluate riverine ecosystem health.; Hydrological modeling using HBV-light to generate future streamflow.; Assessment of climate change impacts on different streamflow characteristics.; Analysis of streamflow changes and their relationship with aquatic habitat.;
format	article
author	M. Usman X. Pan D. Penna B. Ahmad
author_facet	M. Usman X. Pan D. Penna B. Ahmad
author_sort	M. Usman
title	Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
title_short	Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
title_full	Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
title_fullStr	Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
title_full_unstemmed	Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan
title_sort	hydrologic alteration and potential ecosystemic implications under a changing climate in the chitral river, hindukush region, pakistan
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/536824962d674a57bc9d606c5a2ac356
work_keys_str_mv	AT musman hydrologicalterationandpotentialecosystemicimplicationsunderachangingclimateinthechitralriverhindukushregionpakistan AT xpan hydrologicalterationandpotentialecosystemicimplicationsunderachangingclimateinthechitralriverhindukushregionpakistan AT dpenna hydrologicalterationandpotentialecosystemicimplicationsunderachangingclimateinthechitralriverhindukushregionpakistan AT bahmad hydrologicalterationandpotentialecosystemicimplicationsunderachangingclimateinthechitralriverhindukushregionpakistan
_version_	1718444038299844608

Hydrologic alteration and potential ecosystemic implications under a changing climate in the Chitral River, Hindukush region, Pakistan

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