ヨシ(Phragmites australis)の地下茎年齢が地下茎物質貯蔵特性に及ぼす影響

概要

論文の詳細を見る
Characteristics of rhizome resource storage of common reed, Phragmites australis, were investigated in terms of rhizome age. Rhizome biomass and nitrogen and phosphorus concentrations, and total standing stock were measured to understand storage dynamics of each rhizome age. The biomass of one-year-old rhizomes did not decrease in the growing season, while a large reduction in biomass was observed in older rhizomes. Phosphorus and nitrogen concentrations of old rhizomes remained constant throughout the year, while those of young rhizomes decreased particularly from April to May and July to November, indicating that changes in phosphorus concentrations mainly occur in young rhizomes. The standing stock, however, decreased from April to May and September onwards, except for that of young rhizomes which was supposed to be transported to form new shoots.
社団法人　日本水環境学会の論文
2002-11-10