賢沼における栄養塩類の挙動と藻類生産に関する調査研究

概要

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A habitat environment of eel has been deteriorated by eutrophication in Kashikonuma pond desig nated to the country natural monument. In this study. present condition was grasped on the algae pro duction as a course of internal pollution load from the viewpoint of the nutrients release from thesuspended solids and bottom sediments, and it was examined on a desirable countermeasure for thewater quality improvement.At the beginning in the autumn, the nutrients released to the surface layer from the bottom layerwere shown to cause the water bloom, namely the great production of algae. and to contribute to theaccumulation of the bottom sediments in Kashikonuma pond. Then, it was clarified that the nutrientswere released from more the bottom sediments than the suspended solids and that the bottom sedi ments affected considerably its eutrophication. Therefore. it was seemed to be effective that it wasgiven a first priority to the countermeasure of algae and that the removal of the produced algae wasplanned by adjusting water bloom in early autumn in Kashikonuma pond.Key words : Kashikonuma pond. eutrophication, nutrients, algae production, bottom sediments
福島工業高等専門学校の論文