期刊
ECOLOGICAL MODELLING
卷 138, 期 1-3, 页码 101-114出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0304-3800(00)00396-3
关键词
nitrogen; phosphorus; Mediterranean Sea; box model; biological pump
类别
The Mediterranean Sea is generally characterized by the presence of oligotrophic conditions, which are more pronounced in its eastern part. The effects of physical and biological fluxes on the nitrogen and phosphorus distributions are here addressed by means of a box model. Numerical simulations obtained with realistic fluxes, as well as the analysis of the asymptotic behavior of the model support the hypothesis that inverse estuarine circulation is not sufficient to explain the oligotrophic regime. Conversely, it appears that the downward fluxes of organic matter play a major role in sustaining and stabilizing the oligotrophy as found in the observations. Indeed the trophic gradients between the western and the eastern Mediterranean arise as a consequence of the unbalance of the loads emitted in the basins, with greater inputs into the western, but, in any case, they are maintained in the long run by the biological pump. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据