抄録
Various studies have been conducted on reed communities for management coast environment around Lake Biwa, but most of them are based on qualitative description, which are difficult for quantitative evaluation. The objectives of this study are to propose an estimation method of standing crops of reed communities and to apply this method on the change of standing crops after reed plantation. The method was induced based on distribution patterns of reed heights, using three kinds of surveys carried out around Lake Biwa. One was a survey of a reed growth both in a natural and planted reed community on August 200. Another was growth investigation of reeds planted in deep-pond experimental facilities every two weeks from March 2001 to January 2002. The other was that on a reed plantation field every month from December 1997 to October 2001. The following conclusions are drawn: 1) An estimation procedure was proposed for standing crops of reed communities. 2) This procedure estimates a change of standing crops after reed plantation. 3) At a low water level, reeds began to grow and contributed the pattern of reed heights distribution.
