抄録
In this study, the purification experiment by the planting was carried out in order to maintain water quality of the biotope. As the result, next point was more effective than the biotope, which did not do the planting. That is to say, the result of being low in the summertime about 5-6℃ got water temperature. And, it was possible to prevent the multiplication of algae, and as the result, the production of the underwater organic carbon was held.
