生物学的水質判定法の再評価と水環境評価手法の確立に向けての試み

概要

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Nature-friendly levee is now under construction everywhere. In order to make it available for a conservation and a rehabilitation of desirable water environment, appropriate criteria of water environmental assessment should be established. Especially, the criteria through which be estimated the effects on ecosystem around a river must be established. Therefore, in this paper, water quality classification using biological indices was discussed and rivised by observed data in the Honmyo river. Attaining a final goal, it was shown that an establishment of the database, for example of benthos in the water, has to be emphasized. Based on an above-mentioned research, it has been suggested that the modified PI method (BI') and those of three most abundant species are effective for an estimate of the water quality, even though its method is comparatively simple. From now on, the overall water quality classification will be expected to exactly discuss on a viewpoint of its appropriateness in an estimate.
長崎大学の論文