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- W4313595855 endingPage "161438" @default.
- W4313595855 startingPage "161438" @default.
- W4313595855 abstract "Identifying the mixing processes of waters and currents in tidal reach is an important aspect of environmental management to protect freshwater resources and prevent water pollution. In this study, three field investigations conducted in a typical tidal reach in August, November and the following April focused on two isotopes (δD and δ18O) and salinity. A salinity-isotope conservative mixing model was established to differentiate water flows of the important control interface (CI) from freshwater, transition zone and saltwater end-members. Results suggested that the average δD and δ18O values during the ebb and flood tides depleted from August to November, then enriched significantly in the following April and were even higher than those in August. The δD and δ18O values in the saltwater zone enriched markedly compared with those in freshwater zone and transition zone due to the stronger evaporation occurring in the saltwater zone. Based on the revised model, the average contributions of freshwater end-member, transition zone end-member and saltwater end-member in three months were, respectively, 51.50 %, 36.93 % and 11.57 %. However, the contributions of freshwater and transition zones in April end-member were equivalent (47.45 % vs 44.31 %). Meanwhile the largest contribution of saltwater end-member was 20.56 % and occurred in August. The proportions of three end-members that contributed to CI changed with different evaporation scenarios and moisture sources of precipitation. Our research provides important information that furthers our understanding of the isotopes and their applications to environmental management in estuarine regions." @default.
- W4313595855 created "2023-01-06" @default.
- W4313595855 creator A5020169518 @default.
- W4313595855 creator A5044255077 @default.
- W4313595855 creator A5046143523 @default.
- W4313595855 creator A5056003555 @default.
- W4313595855 date "2023-03-01" @default.
- W4313595855 modified "2023-09-27" @default.
- W4313595855 title "Isotopic compositions (δD, δ18O) and end-member mixing for the control interface in a complex tidal region" @default.
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- W4313595855 doi "https://doi.org/10.1016/j.scitotenv.2023.161438" @default.
- W4313595855 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36623659" @default.
- W4313595855 hasPublicationYear "2023" @default.
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