Abstract
Dissolved and particulate, organic and inorganic N, P and Si weremeasured in the main stream and 15 major tributaries of the Changjiang (YangtzeRiver) in April–May 1997. The nutrient concentrations are related towaterdischarge, suspended particulate matter, anthropogenic activities etc. Thenutrient levels were quite low in the upper reaches, and significantlyincreasedin the main stream in a region of 2000–3000 km inland from the rivermouth. The northern tributaries contribute more nutrients to the Changjiangthanthe southern tributaries. Based on atomic ratios of N, P and Si, the limitingnutrient in the Changjiang drainage basin was P. The nutrient yields in theChangjiang and its major tributaries indicated high rates of transport ofnutrients within the watersheds. Concentrations of nitrate in the Changjianghave increased, but there have been no systematic trends for phosphate andsilicic acid since 1980. The DIN/P ratios and DIN/Si ratios increased. TheDIN/Pand DIN/Si ratios may be expected to continue to increase after construction ofthe “Three Gorges Dam”, which will exercise a great deal ofinfluence on theecological environment of the Changjiang estuary and its adjacent sea.
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References
Bennekom A.J., van Berger A.W., Helder H. and Vries R.T.P. 1978. Nutrient distribution in the Zaire estuary and river plume. Netherlands Journal of Sea Research 12: 296–323.
Chen C.T.A. 2000. The Three Gorges Dam: reducing the upwelling and thus productivity in the East China Sea. Geophysical Research Letters 27: 381–383.
Degobbis D. and Gilmartin M. 1990. Nitrogen, phosphorus, and biogenic silicon budgets for the northern Adriatic Sea. Oceanologica Acta 13: 31–45.
DeMaster D.J. and Pope R.H. 1996. Nutrient dynamics in Amazon shelf waters: results from AMASSEDS. Continental Shelf Research 16: 263–289.
Denant V. and Saliot A. 1990. Seasonal variations of nutrients (NO -3 , NO -2 , NH +4 , PO 3-4 and Si(OH)4) and suspended matter in the Rhone delta, France. Oceanologica Acta 13: 47–52.
Edmond J.M., Boyle E.A., Grant B. and Stallard R.F. 1981. Chemical mass balance in the Amazon plume 1, the nutrients. Deep-Sea Research 28: 1339–1374.
Edmond J.M., Spivack A., Grant B.C., Hu M.H., Chen Z.X., Chen S. et al. 1985. Chemical dynamics of Changjiang Estuary. Continental Shelf Research 4: 17–36.
Garnier J., Billen G. and Coste M. 1995. Seasonal succession of diatoms and Chlorophyceae in the drainage network of the Seine River: observations and modeling. Limnology & Oceanography 40: 750–765.
Grassholf K., Ehrhardt M. and Kremling K. 1983. Methods of Seawater Analysis. 2nd edn. Verlag Chemie GmbH, D-6940 Weinheim, 419 pp.
Hu M., Yang Y., Xu C. and Harrison P.J. 1990. Phosphate limitation of phytoplankton growth in the Changjiang Estuary (in Chinese). Acta Oceanol. Sin. En. Ed. 9: 405–411.
Huang S., Yang J., Ji W., Yang X. and Chen C. 1986. Spatial and temporal variation of reactive Si, N, P and their relationship in the Changjiang estuary water (in Chinese). Taiwan Strait 5: 114–122.
Huang S.D., Xu X.Q. and Lu S.Y. 1994. Three Gorges Program, Environmental Pollution and Human Health. Science Press, Beijing, 149 pp (in Chinese).
Humborg C., Ittekkot V., Cociasu A. and Bodungen B.V. 1997. Effect of Danube River dam on Black Sea biogeochemistry and ecosystem structure. Nature 386: 385–388.
Justic D., Rabalais N.N. and Turner R.E. 1995. Stoichiometric nutrient balance and origin of coastal eutrophication. Marine Pollution Bulletin 30: 41–46.
Kahlert M. 1998. C:N:P: ratios of freshwater benthic algae. Arch. Hydrobiol. Spec. Issue Adv. Limnol. 51: 105–114.
Liu R. and Luo B. 1992. Impact of the Three Gorges Project on the ecology and environment of Changjiang river estuary and adjacent waters (in Chinese). Stud. Mar. Sin. 33: 1–13.
Lin Y., Tang R., Li Y., Dong H., Guan X. and Chen Y. 1995. The relationship of biogeochemistry characteristics and flocculation and sedimentation of bioactive elements in the Changjiang estuary (in Chinese). Acta Oceanologica Sinica 17: 65–72.
Lin Z.Q., Zheng Z.L. and Zhu J.H. 1984. Nitrogen migration in the Zhujiang (in Chinese). Oceanologia et Limnologia Sinica 15: 515–520.
Meybeck M. 1982. Carbon, nitrogen and phosphorus transport by world rivers. American Journal of Science 282: 401–450.
Meybeck M., Cauwet G., Dessery S., Somville M., Gouleau D. and Billen G. 1988. Nutrients (organic C, P, N, Si) in the eutrophic river Loire (France) and its estuary. Estuarine, Coastal and Shelf Science 27: 595–624.
National Compilation Committee of Hydrology Almanac 1990. Almanac of Hydrology in China. Hydrology and Electric Power Press, China, (in Chinese).
National Compilation Committee of Changjiang Almanac 1994–1995. Almanac of Changjiang in China. Press of Chinese hangjiang Almanac, Beijing, pp 780 (in Chinese).
National Compilation Committee of Environmental Almanac 1996. Almanac of Environment in China. Press of Chinese Environment Almanac, Beijing, pp 780 (in Chinese).
National Compilation Committee of Changjiang Almanac 1997. Almanac of Changjiang in China. Press of Chinese Changjiang Almanac, Beijing, pp 592 (in Chinese).
National Compilation Committee of Agricultural Almanac 1997. Almanac of Agriculture in China. Press of Chinese Agriculture Almanac, Beijing, (in Chinese).
Qu C.H., Chen C.Z., Yang J.R., Wang L.Z. and Lu Y.L. 1993. Geochemistry of dissolved and particulate elements in the major rivers of China (the Huanghe, Changjiang and Zhujiang rivers). Estuaries 16: 475–487.
Rabalais N.N., Turner R.E., Dortch Q., Wiseman W.J. and Gupta B.K.S. 1996. Nutrient changes in the Mississippi River and system responses on the adjacent continential shelf. Estuaries 19: 386–407.
Shen Z. 1993. A study of the relationships of the nutrients near the Changjiang river estuary with the flow of the Changjiang river water. China Journal Oceanologia Limnologia 11: 260–267.
Shen Z., Liu X. and Lu J. 1987. Distribution and transfer of inorganic N and phosphate in the Yangtze River estuary (in Chinese). Stud. Mar. Sin. 28: 69–77.
Shi Y.-L., Wu Y. and Ren M.E. 1985. Hydrological characteristics of the Changjiang and its relation to sediment transport to the sea. Continental Shelf Research 4: 5–15.
Tian R.C., Hu F.X. and Martin J.M. 1993. Summer nutrient fronts in the Changjiang (Yangtze River) estuary. Estuarine, Coastal and Shelf Science 37: 27–41.
van der Weijden C.H. and Middelburg J.J. 1989. Hydrogeochemistry of the river Rhine: long term and seasonal variability, elemental budgets, base levels and pollution. Water Research 23: 1247–1266.
Wafar M.V.M., le Corre P. and Birrien J.L. 1989. Transport of carbon, nitrogen and phosphorus in a Brittany river, France. Estuarine, Coastal and Shelf Science 29: 489–500.
Wang Z., Yao L. and Yuan X. 1983. Distribution and characteristics of nutrients (N, P, Si) in the estuary of the Changjiang river in June, 1980 (in Chinese). Oceanologia et Limnologia Sinica 14: 324–332.
Zhang J. 1996. Nutrient elements in large Chinese estuaries. Continental Shelf Research 16: 1023–1045.
Zhang J., Yan J. and Zhang Z.F. 1995. Nationwide river chemistry trends in China: Huanghe and Changjiang. AMBIO 24: 275–279.
Zhang J., Yu Z.G., Chen S.Z., Xiong H., Chen H.T., Li B. et al. 1998. Processes affecting nutrient dynamics in the Yalujiang and its estuary (1994–1996), North China. In: Hong G.H., Zhang J. and Park B.-K. (eds), Health of the Yellow Sea. The Earth Love Publication Association, Seoul, pp. 149–189.
Zhang J., Zhang Z.F., Liu S.M., Wu Y., Xiong H. and Chen H.T. 1999. Human impacts on the large world rivers: Would the Changjiang (Yangtze River) be an illustration? Global Biogeochem. Cycles 13: 1099–1106.
Zhang L.-C., She Z.-S., Zhang S. and et al. 1996. Study of Chemical Elements in Water Environment. China Environment Science Press, Beijing, 291 pp.
Zhu D.Q. 1993. Big Dictionary of Chinese Water Systems. China Qingdao Press, Qingdao, p 642.
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Liu, S.M., Zhang, J., Chen, H. et al. Nutrients in the Changjiang and its tributaries. Biogeochemistry 62, 1–18 (2003). https://doi.org/10.1023/A:1021162214304
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DOI: https://doi.org/10.1023/A:1021162214304