| 1 | Composition and flux of nutrients transport to the Changjiang Estuary显示文摘Based on the results of water sample measurements of nutrient concentrations at th e Datong Station of the Changjiang River from 1998 to 1999, combined w ith historical data of water quality, seasonal variations of nutrient concentrations and nutrient transports are discussed.The following results have been obtained: (1) the fluxes of the nitrate nitrogen, ammonium nitrogen and nitrite nitrogen increased by time-series from 1962 to 1990 , even if runoff volume had a little variation; (2) the concentrations and fluxes of the dissolved inorganic nitrogen (DIN) and dissolved in organic phosphorus (DIP) increased notably with time, but those of the dissolved silicon (DSI) decreased pronouncedly; and (3) the concentration s and fluxes changed synchronously with time between the Datong Station a nd the Changjiang Estuary. | ZHANG Shen,JI Hongbing,YAN Weijin,DUAN Shuiwang(Inst. of Geographic Sciences and Natural Resources Research, Beijing 100101, China) | 2003 | Journal of Geographical Sciences2003，13，1： | 13 |
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