CO2 emissions from hydroelectric reservoirs in the Tigris River basin, a semi-arid region of southeastern Turkey

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dc.authorid0000-0001-6475-0570en_US
dc.contributor.authorVarol, Memet
dc.date.accessioned2021-06-17T22:15:27Z
dc.date.available2021-06-17T22:15:27Z
dc.date.issued2019en_US
dc.departmentMTÖ Üniversitesi, Doğanşehir Vahap Küçük Meslek Yüksekokulu, Su Ürünleri Bölümüen_US
dc.description.abstractThree hydroelectric reservoirs (Kralkizi, Dicle and Batman) in the Tigris River basin (Turkey) were sampled monthly during one year in order to reveal spatial and seasonal changes in aqueous partial pressure of CO2 (pCO(2)) and to estimate diffusive fluxes of CO2 from the reservoirs' surface water. pCO(2) concentrations did not show significant spatial differences, while they showed significant seasonal variations. Temperature, precipitation and biological CO2 uptake through photosynthesis controlled pCO(2) seasonality in the reservoirs, with maximal concentrations in the winter (ranging from 516.9 mu atm in Kralkizi to 1299.2 mu atm in Dicle) and minimal concentrations in the spring (ranging from 47.7 mu atm in Batman to 140.7 mu atm in Kralkizi). Most studies reported that reservoirs worldwide are net sources of CO2 to the atmosphere. However, the reservoirs in this study were sinks for atmospheric CO2 during the spring, summer and autumn seasons, while they were CO2 sources to the atmosphere during the winter. Air-water CO2 fluxes in Kralkizi, Dicle and Batman dam reservoirs were 2.39, 32.88 and 8.12 mmol/m(2)/day in the winter, respectively. On an annual basis, all three reservoirs acted as a sink for atmospheric CO2. These estimated CO2 fluxes were in the lower range for temperate reservoirs, despite the potential for winter conditions that shifted the reservoirs from sink to net source for atmospheric CO2.en_US
dc.identifier.citationVarol, M. (2019). CO2 emissions from hydroelectric reservoirs in the Tigris River basin, a semi-arid region of southeastern Turkey. Journal of Hydrology, 569, 782-794.en_US
dc.identifier.doi10.1016/j.jhydrol.2019.01.002
dc.identifier.endpage794en_US
dc.identifier.issn0022-1694en_US
dc.identifier.issn1879-2707en_US
dc.identifier.scopus2-s2.0-85059801514en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage782en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhydrol.2019.01.002
dc.identifier.urihttps://hdl.handle.net/20.500.12899/270
dc.identifier.volume569en_US
dc.identifier.wosWOS:000457952900058en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorVarol, Memet
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Hydrologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGreenhouse gasesen_US
dc.subjectCO2 diffusion fluxesen_US
dc.subjectHydroelectric reservoirsen_US
dc.subjectCarbon emissionsen_US
dc.subjectSemi-arid regionen_US
dc.titleCO2 emissions from hydroelectric reservoirs in the Tigris River basin, a semi-arid region of southeastern Turkeyen_US
dc.typeArticleen_US

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