基于磷阈值的富营养化风险评价体系  

A eutrophication risk assessment system based on phosphorus threshold

作　　者：杨龙[1,2] 王晓燕[1] 王子健[3] 吴在兴[1] 吴敬[1] 

机构地区：[1]首都师范大学资源环境与旅游学院,北京100048 [2]北京市环境保护科学研究院,北京100037 [3]中国科学院生态环境中心环境水质学国家重点实验室,北京100085

出　　处：《中国环境科学》2010年第S1期29-34,共6页China Environmental Science

基　　金：国家自然科学基金资助项目(40871219;40971258);北京市教委科技项目(KM200910028014)

摘　　要：选取北京市重要的地表水源密云水库作为实例研究,在识别影响富营养化发生的主要限制因子的基础上,采用外源营养盐输入对富营养化作用的流水藻类培养试验(AGP)方法,并结合数学方法拟合富营养化水体发生的阈值.研究表明,根据富营养化水体各水质指标之间的回归关系,确定出能够反映富营养化的水质指标阈值.运用水质模型模拟富营养化过程,进行基于阈值的富营养化风险评价,构建了富营养化风险评价方法体系,提供了一种基于阈值的水体富营养化风险评价的方法.Miyun Reservoir, a major surface water source to Beijing, was selected as a case study. The AGP test method was selected to evaluate sources of external nutrient input to the eutrophic water, combined with mathematical methods fitting the eutrophic water body threshold. The indicators of the eutrophication threshold were identified according to the regression relationships among indicators of water quality. The eutrophication process was simulated by a water quality model to assess the risk of eutrophication. Following the above procedures, a eutrophication risk assessment methodology developed based on the threshold.

关 键 词：富营养化 风险评价 藻类培养试验(AGP) 磷阈值 密云水库 

分 类 号：X524[环境科学与工程—环境工程]