Abstract
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1.
The nonanthropogenic SO4 in the Changjiang River stems from weathering and oxidation of sulphate and sulphite minerals, while the anthropogenic SO4 here is attributed to acid rain containing H2SO4 formed by atmospheric sulphur oxides derived from the burning of fossil fuels in the region of the lower reaches. Ca and Mg are probably derived from weathering of carbonate minerals, but possibly less from weathering of silicate minerals.
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2.
The Changjiang River estuary is characterized by two—layer flow based on the salinity section of the estuary, so a model of two—layer exchange of water—body in the Changjiang River estuary can be advanced.
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3.
The presence of SO4 and K at stations H14 and H15 were found most likely to be due to the addition and removal processes, that of the other major consituents may be mainly controlled by physical mixing in this estuary.
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References
Cannon, G. A., D. J. Poshinski and Dong Ruzhou, 1983. Circulation in the Changjiang River estuary region: estuary shelf interaction.In: Proceedings of International Symposium on Sedimentation of the Continental Shelf, with Special Reference to the East China Sea. China Ocean Press, Vol. 1, pp. 328–336.
Holland, H. D., 1978. Physical and chemical transport in river systems.In: The Chemistry of the Atmosphere and Oceans. John Wiley, New York, pp. 81–152.
Holland, H. D., 1981. River transport to the oceans.In: The Sea. C. Emiliani ed. John Wiley, New York, Vol. 7, pp. 763–800.
Hu Minghur, R. F. Stallard and J. M. Edmond, 1982. Major ion chemistry of some large Chinese rivers.Nature 298(5874): 550–553.
Li Yan and Wang Qingzhang, 1981. Redox equilibrium distribution in the East China Sea sediments.Oceanologia et Limnologia Sinica (Supplement). Science Press, pp. 79–91. (in Chinese with English abstract).
Li Yan, Zhu Xiaobin and Hu Zhaobin, 1982. Geochemical features and contaminative state of the sediment interstitial water in Bohai Bay.Oceanologia et Limnologia Sinica 13(5): 414–423. (in Chinese with English abstract).
Li Yan, Zu Zhaobin and Zhu Xiabin, 1983. Geochemistry of the seoiment interstitial water in the adjacent sea area to the Changjiang River estuary.Oceanologia et Limnologia Sinica 14(5): 460–472. (in Chinese with English abstract).
Limeburner, R., R. C. Beardsley and Zhao Jinsan, 1983. Water masses and circulation in the East China Sea. In: Proceedings of International Symposium on Sedimentation of the Continental Shelf, with Special Reference to the East China Sea. China Ocean Press, Vol. 1, pp. 285–294.
Mackenzie, F. T. and R. M. Garrels, 1966. Chemical mas balance between rivers and oceans.Am. J. Sci. 264: 507–525.
Stallard, R. F. and J. M. Edmond, 1981. Geochemistry of the Amazon I. Precipitation Chemistry and the marine contribution to the dissolved load at the time of peak discharge.J. Geophy. Res. 86(c10): 9844–9858.
Wang Zhengfang, Yuan Xiaozheng and Yao Longkui, 1985. The transport of major dissolved matter in Changjiang estuary.Oceanologia et Limnologia Sinica 16(3): 222–230. (in Chinese with English abstract).
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This paper was published in Chinese in Oceanologia et Limnologia Sinica,17 (6): 530–538.
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Yan, L., Xuchen, W. Chemical mass transfer from the Changjiang River to the sea. Chin. J. Ocean. Limnol. 7, 262–270 (1989). https://doi.org/10.1007/BF02842616
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DOI: https://doi.org/10.1007/BF02842616