Nitrogen Budget At Two Artificial Tidal Flats Along The Coastal Area Of
Osaka Bay, Japan
Author(s)
S. Yamochi, R. Yanagawa & K. Oda
Abstract
Nitrogen budget at two artificial tidal flats
along the coastal area of Osaka Bay, Japan
S. Yamochi, R. Yanagawa & K. Oda
Department of Urban Engineering, Graduate School of Engineering,
Osaka City University, Japan.
Abstract
Budgets of nitrogen, suspended solids and chlorophyll a were studied in
September 2000 and June, August, September and October 2001 at the north
pond of Nanko Bird Sanctuary and at an artificial tidal flat of Hannan Second
District, Osaka Bay, Japan. At the north pond of Nanko Bird Sanctuary, the
output of suspended solids to coastal water exceeded its input to the pond, while
chlorophyll a was intercepted within the pond through the tidal exchange.
Dissolved inorganic nitrogen imported into the pond was temporally incorporated
into the biomass and was then exported in the form of dissolved organic nitrogen.
Particulate nitrogen was abundant as a resource of nitrogenous nutrients to coastal
water in the summer of 2001. These phenomena are thought to be correlated
with bio
Keywords
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