黄河流量と渤海海洋環境の経年変動

概要

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The river discharge of the Yellow River has decreased from late half of 1980 due to the overuse of water on land. To clarify the relation between decreasing discharge of the Yellow River and bio-chemical environment of the estuary of the Yellow River, Chl.a, Dissolved Inorganic Nitrogen (DIN), Dissolved Inorganic Phosphorus (DIP) and Dissolved silicon data were collected from the previous reports. Chl.a concentration of Bohai Sea increased from 2000, and the limiting nutrient of primary production was change from nitrogen to phosphorous. DIP and DSi concentration of Bohai Sea decreased, because P and Si loading from the Yellow River decreased due to the decreasing discharge of the Yellow River. Si is more sensitive than P to the decreasing discharge of the river, because P is loaded artificially. DIN loading from the Yellow River decreased, but DIN concentration of Bohai Sea increased.
神戸大学の論文
2006-07-31