霞ヶ浦のヒシ群落の現存量と純生産量

概要

論文の詳細を見る
Seasonal change in biomass of Trapa natans community in Takahama-iri Bay of Lake Kasumigaura showed two peaks during the growing period both in 1979 and 1980. The maximum biomass was approximately 300 g dry wight m^<-2> and the minimum value between the two peaks was less than 100 g dry weight m^<-2>. In spite of the small peak biomass, the net primary production was as high as 606 and 1010 g dry weight m^<-2> in 1979 and 1980,respectively. The loss by death and shedding of plant materials during the growing period was 318 and 786 g dry weight m^<-2> in 1979 and 1980,respectively. The mean life expectancy of the leaves was less than a month and the loss of leaves and petioles amounted to approximately 80% of the total plant loss.
日本生態学会の論文
1983-03-30