A PRELIMINARY STUDYS ON THE BIOMASS OF CALAMAGROSTIS PSEUDOPHRAGMITES COMMUNITY
假苇拂子茅群落生物量初步研究

This paper studied seasonal and spatial changes of biomass above-ground and under parts in the Calamagrostis pseudophragmites community. The results showed obviously season al dynamics in biomass at the Caldmagrostis pseudophragmites community. Aboveground biomass achieved maximum value (142. 54 g/m2 ) in mid-September. Underground biomass was mainly concentrated on 0-10 cm of the soil layer, seasonal changes was significant too,and lowest value (170. 32 g/m2) appeared in May, the maximum appeared in September.There existed a close correlation between the maximum-minimum value and the vegetative ger mination of spring. The F/C ratio of Calamagrostis pseudophragmites community was as low as 0. 388 in the period of high peak.