摘要
通过对目前生态动力学模型的总结和综合,以生态系统中氮、磷营养盐循环为主线,建立了适用于海洋围隔浮游生态系统的多变量的营养盐迁移-转化动力学模型。该模型包括浮游植物、浮游动物、溶解无机态营养盐、溶解有机态营养盐和生物碎屑5个模块,涉及溶解无机氮、磷酸盐、溶解有机氮、溶解有机磷、浮游植物、浮游动物和生物碎屑7个状态变量。利用2002年8月末莱州湾围隔生态实验数据进行了模型的验证工作,成功地模拟了富加营养盐条件下围隔浮游生态系统中氮、磷营养盐生物化学迁移-转化过程,并通过灵敏度分析探讨了模型主要状态变量对参数改变的灵敏程度。
A dynamic model for nitrogen and phosphorus transport and transformation in mesocosm was estab-lished according to the summary and synthesis of the models available, in which 7 state variables （DIN, PO4-P, DON, DOP, phytoplankton, zooplankton and detritus） were included. Logically it had 5 modules-phyto-plankton, zooplankton, dissolved inorganic nutrients, dissolved organic nutrients and detritus. The results showed that this model could simulate the variations of DIN, PO4-P, and phytoplankton biomass in the pelagic ecosystem in mesocosm properly, based on the site experiment data in Laizhou Bay at the end of August in 2002. Not only the logical structure but also the model parameters were feasible, and the sensitivity of the main state variables to the parameter change was discussed by sensitivity analysis. All of these were necessary for studying the control mechanism of nutrients biogeochemical cycling in Laizhou Bay and other Chinese coastal waters.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第6期987-994,共8页
Periodical of Ocean University of China
基金
国家自然科学基金项目(40136020)
国家海洋局908专项(908-02-02-03)
青岛市科技发展项目(06-2-2-7-nsh)资助
关键词
莱州湾
氮磷营养盐
迁移-转化模型
围隔
Laizhou Bay
nitrogen and phosphorus nutrients
transport and transformation model
mesocosm
