摘要
在美国环保局开发的WASP湖泊富营养化模型的基础上,引入了浮游动物这一影响因子,表征了浮游动物生长动力学及其对营养盐与溶解氧的作用,使得模型对富营养化过程的描述更加全面。建立的湖泊生态模型,涉及浮游植物、浮游动物、氮、磷、溶解氧等9个变量,揭示了变量之间的相互关系以及湖泊富营养化的变化规律。结合白洋淀水域2004年的总氮、总磷、溶解氧、碳生化需氧量的实际监测数据,将WASP模型和改进后的模型的计算结果进行对比分析,表明改进后的模型能更好的与实测值相吻合,尤其是对于浮游植物、总氮和碳生化需氧量的模拟,准确再现了变量在1a内的变化过程。
Effects of zooplankton on nutrition and dissolved oxygen （DO） were incorporated into water quality analysis simulation program （wAsP） eutrophication model formerly developed by USEPA, so as to describe the lake eutrophication process more comprehensively. An ecological model was built, which involved 9 variables including phytoplankton, zooplankton, nitrogen, phosphorus and DO, for the purpose to reveal the correlation of variables and variation rule of the lake eutrophication. The original and improved WASP models were comparatively used for Baiyangdian Lake, Hebei Province, to describe the variation of total nitrogen, total phosphorus, DO and carbonaceous biochemical oxygen demand in 2004. Results indicated that the improved WASP model was more consistent with the observed data, especially for phytoplankton, total nitrogen and carbonaceous biochemical oxygen demand, which showed the variation process of variables in a year.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第10期19-24,共6页
Environmental Science & Technology
基金
国家重点基础研究专项(973)课题(2006CB403302)
教育部留学回国人员科研启动基金(20071108)
关键词
WASP
富营养化
模型改进
白洋淀
water quality analysis simulation program modeling system （WASP）
eutrophication
model improvement
Baiyangdian
