摘要
使用一个十分简单而相对完整的,包括浮游生物(植物、细菌和动物)和无生命氮(有机碎片、溶解有机氮、硝酸盐和铵)的食物网以描述发生在海洋上层的生物过程。将该生物模式用在一个从佛罗里达海峡(24°N,80°W)流至挪威海(68°N,10°E)(扩展湾流体系,EGSS)的水块中,模拟浮游生物和营养盐随时间的演化。模拟结果给出了浮游生物在营养盐驱动下的生命循环,并得到了水华季,比用最简单的浮游植物—浮游动物—营养盐(PZN)得到的结果更合理。在计算了各种生产力的基础上,进一步讨论了浮游生物循环的动力学过程及各种影响因素。
A simple food web, including plankton (phytoplankton, zooplankton and bacteria) and nonliving nitrogen (detritus, dissolved organic nitrogen, nitrate and ammonium) is used to represent the biological processes taking place in the upper mixed layer of the ocean. This biological model is applied into a parcel of water moving from the Strait of Florida (24°N, 80°W) to the Norwegian Sea (68°N, 10°E) in the Extended Gulf Stream System(EGSS) to simulate the evolution of plankton and nutrients with time. Results give the life cycle of plankton driven by the nutrients,and also produce the spring bloom. The results are more reasonable than those from the most simple biological model of phytoplankton-zooplankton-nutrient (PZN). On the basis of calculation of various production, the dynamics processes of plankton cycles and their influence factors are further discussed.
出处
《海洋通报》
CAS
CSCD
北大核心
1996年第5期17-24,共8页
Marine Science Bulletin
关键词
水块混合层模式
浮液生物
食物网
生物循环
parcel-mixed layer model
plankton model
food web
Extended Gulf Stream System
