Variations of nutrient elements and its effect on ecological environment off the Changjiang estuarine waters

查看全文 作　　者：Lin Yi’ an, Tang Renyou, Pan Jianming, Jin Mingming ( Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China)

出　　处：《Acta Oceanologica Sinica》索引2001年第20卷第2期,共11页

基　　金：the China - Japan Joint Research Project-Environmental Loading from River Inputs andTheir Effects on the Marine Ecosystem in S 摘　　要：On the basis of the date obtained in two cruises during October 1997 and May 1998, the concentration distribution and the variation of present species of nutrient elements in the water masses are described. The transform mechanism of present species of nutrients and the of differrnt water masses, frontal area and thermohaline transition layer on convergence or divergence and the biogeochemical cycle of nutrient elements off the Changjiang Estuary are studied. Meanwhile, the environmental capaci- ty of nutrients is primarily estimated: they are 1.803 x 104t DIN and 6.18 x 102t PO43- -P in autumn, and 4.20x 102t PO43- -P in spring. 关键词：NUTRIENT dement, BIOGEOCHEMICAL cycle, ecological environmental effect, the CHANGJIANG ESTUARY

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Variations of nutrient elements and its effect on ecological environment off the Changjiang estuarine waters

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