基于生态槽实验的藻类生长参数确定  

Parameter Determination of Algae Growth Based on Ecological Tank Experiment

作　　者：逄勇[1] 丁玲[1] 高光[2] 

机构地区：[1]河海大学环境科学与工程学院,南京210098 [2]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《环境科学》2005年第3期78-82,共5页Environmental Science

基　　金：国家 8 63计划资助项目 (2 0 0 3AA60 110 0 2 ) ;国家自然科学基金资助项目 (5 0 2 3 90 3 0 )

摘　　要：在太湖湖泊生态系统研究站的生态模拟槽中进行了藻类的动态模拟实验.取太湖原水至生态槽中,在温度、光照、营养盐变化条件下进行采样,观察藻类的变化情况.在生态槽实验基础上应用PHREEQC模型建立了藻类生长模型,模型中考虑了氮及磷营养盐的循环过程.利用生态模拟槽实验结果对太湖藻类生长模型的各参数进行了详细的率定验证,并应用最小二乘法确定最佳的一组参数,藻类及各种营养盐浓度的模拟值均能较好地拟合实验测量值.A dynamic simulation experiment of algae in an ecological tank was performed at the Taihu Laboratory for Lake Ecosystem Research. During the experiment, water from Taihu Lake was infused into the ecological tank and samples were taken continually to observe algae growth under varying conditions, such as temperature, sunlight and nutrients. Based on the experiment, an algae growth model, considering nitrogen and phosphorus cycle, was developed by using the advanced PHREEQC model. After that, a detailed calibration and validation of parameters in the model were done on the basis of experimental results. The least square method was used to determine the optimal set of parameters. The calculated values of algae and nutrient concentrations show fairly satisfying fittness with measured data.

关 键 词：生态槽实验 PHREEQC模型 藻类生长模型 最小二乘法 参数确定 

分 类 号：X524[环境科学与工程—环境工程] X171.5