| 摘要 |
PROBLEM TO BE SOLVED: To reduce decrease in raising function of a vegetation mat or water pollution which is caused by outflow of soil in a vegetation base into water, and reduce cost for regenerating the community of the submerged plants on the water bottom in a closed water area.SOLUTION: The method for forming a community of submerged plants includes: setting a vegetation base 13 on the water surface or in the water where light intensity is secured, in a closed water area 11 such as a lake or a pond targeted for forming the community of the submerged plants 12; setting a vegetation mat 27 on the soil layer 26 of the vegetation base 13; and preliminarily cultivating the submerged plants 12 transplanted on the vegetation mat 27, on the vegetation mat 27. The vegetation mat 27 where the submerged plants 12 grow thick owing to such preliminary cultivation, is sunk in the water bottom of the closed water area 11 so as to form the community of the submerged plants 12 on the bottom of the water. |
