Ganf G G
International Biological Programme, Royal Society African Freshwater Biological Team, Freshwater, Biological Association, Ambleside, Westmorland.
Department of Botany, University of Adelaide, 5001, Adelaide, S. Australia, Australia.
Oecologia. 1975 Sep;18(3):165-183. doi: 10.1007/BF00345420.
The photosynthesis-irradiance characteristics of the phytoplankton of the shallow but optically deep Lake George, Uganda, are discussed in relation to established models of integral photosynthetic production. The horizontal and diurnal variation of photosynthetic capacity (P ), and of other photosynthesis-irradiance characteristics, prevents an accurate estimate of photosynthetic production in Lake George. The diurnal studies showed that P fell as light-saturation onset (I ) values increased which, coupled with the reduction of chlorophyll a concentration within the euphotic zone, causes an asymmetrical distribution of daily photosynthetic production about mid-day.
结合已有的光合生产积分模型,讨论了乌干达浅而光深的乔治湖浮游植物的光合辐照度特征。光合能力(P)以及其他光合辐照度特征的水平和日变化,使得难以准确估算乔治湖的光合产量。日变化研究表明,随着光饱和起始值(I)的增加,P值下降,再加上真光层内叶绿素a浓度的降低,导致每日光合产量在中午左右呈不对称分布。