Weatherell C A, Elliott D J, Fallowfield H J, Curtis T P
School of Civil Engineering and Geosciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK.
Water Sci Technol. 2003;48(2):219-26.
Algae play several key roles in waste stabilisation ponds. A model has been developed to predict algal concentration in waste stabilisation ponds, in which the relationship between photosynthesis and underwater light availability is central. One equation was selected from several alternative expressions that describe this relationship. The selected equation consisted of four photosynthetic parameters. A field sampling programme was designed to investigate the relationships between the photosynthetic parameters and the pond environment. Although initial regression analyses were unsuccessful, distinct diurnal variations were revealed in two key photosynthetic parameters, related to an inverse variation in chlorophyll a concentration. This led to the derivation of a dynamic feedback hypothesis which challenges the classic assumption in algal modelling of constant photosynthetic parameters.
藻类在废水稳定塘中发挥着几个关键作用。已经开发出一个模型来预测废水稳定塘中的藻类浓度，其中光合作用与水下光可用性之间的关系是核心。从几个描述这种关系的替代表达式中选择了一个方程。所选方程由四个光合参数组成。设计了一个现场采样计划来研究光合参数与池塘环境之间的关系。尽管最初的回归分析未成功，但在两个关键光合参数中发现了明显的昼夜变化，这与叶绿素a浓度的反向变化有关。这导致了动态反馈假说的推导，该假说挑战了藻类建模中光合参数恒定的经典假设。
