Modeling the effects of atmospheric nitrogen input on biological production in the Japan Sea |
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Authors: | Goh Onitsuka Itsushi Uno Tetsuo Yanagi Jong-Hwan Yoon |
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Institution: | (1) Department of Fishery Science and Technology, National Fisheries University, Nagata-Honmachi, Shimonoseki 759-6595, Japan;(2) Research Institute for Applied Mechanics, Kyushu University, Kasugakoen, Kasuga 816-8580, Japan |
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Abstract: | The effects of atmospheric nitrogen input on biological production in the Japan Sea have been investigated using a coupled
physical-ecosystem model. Comparison between the cases with and without nitrogen deposition shows a relatively large effect
on primary production in the southern Japan Sea during summer to autumn, when nitrogen deposition is high and nutrient is
depleted in the surface layer. The atmospheric nitrogen deposition supports > 10% of the annual export production in the nearshore
region along the Japanese coast. The importance of atmospheric input as a new nutrient will grow steadily with increasing
deposition into the Japan Sea. |
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Keywords: | Atmospheric nitrogen deposition ecosystem model Japan Sea primary production |
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