三河湾一色干潟におけるチッソ,リンおよび懸濁物の収支〔英文〕

概要

論文の詳細を見る
In order to understand the function of intertidal zone in nutritive circulation in the sur-rounding water, budgets of nitrogen, phosphorus and suspended solid on an intertidal flat were investigated in summer through the use of box model. Their distributions of concentration were observed and their supplies from the background were estimated. It was found that the intertidal flat is a net sink of nutrients due to fixation by aquatic plants and trapping by bentic animals rather than a net source of nutrient salts due to high potential of mineralization of organic substances by bacteria and microfauna under aerobic condition. Thus, an intertidal zone probably functions in summer as a buffer for the surrounding water against the nutritive load from the land.