The vertical structure of the ratio (F/C) of biomass of assimilation organs (F) to that of non-assimilating organs (C) increased gradually along with the height.

• 芦苇种群同化器官生物量(F)与非同化器官生物量(C)的比值(F／C)的垂直分布结构表现为自下而上，随着高度的增加，逐渐增大。