... *Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan **(Former Affiliation) Institute of Industrial Science, The University of Tokyo, Tokyo, ... phosphorus and other changes that occur in soil. The experimental equipment was placed on the rooftop terrace of the Institute of Industrial Science, the University of Tokyo, which is equipped with ... grow with the rhizome extension, and the giant reed community in the wetland is regenerated. Journal of Water and Environment Technology, Vol. 7, No. 2, 2009 - 153 -Above-ground part of...