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Long term trends and dynamics of dissolved organic carbon (DOC) in a subtropical Reservoir basin

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dc.citedby18
dc.contributor.authorChow M.F.en_US
dc.contributor.authorLai C.-C.en_US
dc.contributor.authorKuo H.-Y.en_US
dc.contributor.authorLin C.-H.en_US
dc.contributor.authorChen T.-Y.en_US
dc.contributor.authorShiah F.-K.en_US
dc.contributor.authorid57214146115en_US
dc.contributor.authorid36628881300en_US
dc.contributor.authorid36628692800en_US
dc.contributor.authorid56110362400en_US
dc.contributor.authorid58070368300en_US
dc.contributor.authorid7003601734en_US
dc.date.accessioned2023-05-29T06:38:02Z
dc.date.available2023-05-29T06:38:02Z
dc.date.issued2017
dc.descriptionAcidification; Atmospheric chemistry; Atmospheric temperature; Deposition; Dissolution; Meteorological problems; Organic carbon; Rivers; Stream flow; Atmospheric depositions; Dissolved organic carbon; Hydrological factors; Long-term trend; Positive correlations; Seasonal variability; Stream; Streamwater chemistry; Reservoirs (water); atmospheric deposition; concentration (composition); dissolved organic carbon; environmental factor; ionic composition; long-term change; oligotrophic environment; reservoir; streamwater; subtropical region; temperature effect; trend analysis; Feitsui Reservoir; Taiwanen_US
dc.description.abstractThis study evaluates the long term trends and seasonal patterns of dissolved organic carbon (DOC) concentration in the Fei-Tsui Reservoir basin in Northern Taiwan during the period of 2000 to 2015. The non-parametric seasonal Mann-Kendall test was conducted to identify the trends of DOC and its potential drivers (e.g., temperature, runoff, atmospheric acid deposition and stream water chemistry). The monthly tributaries and water surface DOC concentrations in Fei-Tsui Reservoir had showed strong temporal and seasonal variability. The sulfate (SO4) concentration had exhibited statistically significant decreasing trend over a period of 16 years. The decreasing trends of anions (SO4 and NO3) and base cations (Ca and Mg) as well as increasing trends of pH and acidification index (ACI) in Fei-Tsui Reservoir and streams indicated recovery from acidification. However, there was no significant annual trend in DOC concentration of Fei-Tsui Reservoir and streams. Significant positive correlation was obtained between DOC and trophic state index of Fei-Tsui Reservoir. The results suggested that DOC concentration at the water surface of Fei-Tsui Reservoir was mainly driven by the re-oligotrophication and temperature effects rather than a decrease in atmospheric sulfur deposition. Stream DOC concentration was largely determined by the temporal variability in temperature and rainfall. We concluded that climatic and hydrological factors are the dominant drivers for stream DOC dynamics in the study. � 2017 by the authors.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo545
dc.identifier.doi10.3390/w9070545
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85025476327
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85025476327&doi=10.3390%2fw9070545&partnerID=40&md5=58588d9cd5bd411a520394f5af12c678
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/23153
dc.identifier.volume9
dc.publisherMDPI AGen_US
dc.relation.ispartofAll Open Access, Gold, Green
dc.sourceScopus
dc.sourcetitleWater (Switzerland)
dc.titleLong term trends and dynamics of dissolved organic carbon (DOC) in a subtropical Reservoir basinen_US
dc.typeArticleen_US
dspace.entity.typePublication
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