摘要
基于湖泊生态系统的物种构成，本文提出了一种浮游植物（藻类）生长率的加权计算方法──加权生长率法。并把热力学概念“生物地球化学能量”引入湖泊生态动力学模型，通过其变化来描述湖泊生态系统中物种构成和生态结构的变化。把加权生长率法和能量描述统一起来用以改进湖泊生态动力学模型．该改进的湖泊生态动力学模型被成功用于模拟和预测慎池生态系统在不同外负荷条件下浮游植物的生长情况．
Based on the species composition of lake ecosystem,a weighting method of the growth rate of phytoplankton(algae)-weighted growth rate is presented in this paper.The thermodynamic concept'Exergy' is introduced into the ecodyamic model for lake,and the changes in species composition and ecological structure of the ecosystem are described by the change in exergy.An improved ecodynamic model for lake is developed by combining the weighted growth rate and the exergy description.This model proposed in this paper has been successfully used to model and predict the growth of phytoplankton of Lake Dianchi at different conditions of external pollutant load.
关键词
加权生长率
生态动力学模型
湖泊
污染
species composition,weighted growth rate,exergy,ecodynamic model for lake
