Seasonal Dynamics of Yellow Water Lily Nuphur lutea (L.) Smith (Nymphaeaceae) in the Small Ild River (Yaroslavl Oblast)

摘要

Several peaks have been determined in the seasonal dynamics of the aboveground biomass of the yellow water lily. The aboveground biomass reaches its maximal values during the period of mass flowering-early fruiting. The accumulation of plant litter during the growing season occurs unevenly; its maximal values are reached when one type of leaves is replaced by the other. The net aboveground annual production of yellow water lily exceeds on average two times the maximum values of aboveground biomass. It is estimated that 1 m~2 of overgrowths yields on average 349 g of organic carbon.