底生動物と光環境に基づく瀬-淵構造の検討

概要

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In this study, physical quantities (velocity, depth, grain size distribution, and light quantum.) in riffle-pool structure were measured. Further, since riffle and pool is habitats for benthic animal, those areas were surveyed. The object of this study is to analyze and appreciate about river environment including ecosystem by means of these survey of physical environment and. benthic community. The field survey was performed at research point being compatible with pool, glide and rapid riffle. As a result of, the reached lights on river-bed surface was intense in riffle comparing with pool. Because of dispersions, the standard deviation of light quantum in riffle was larger than that in pool. The fact was supported by result of attached algae survey. The results of benthic community survey were performed in April and August showed a diversity of species in riffle. And the process of succession to the climax was observed by means of classification of benthic life type.
前橋工科大学の論文
2003-03-27