Observation Based Models of Ecosystem Processes Controlling Oceanic Distributions of Nutrients and Carbon

摘要 近年来，大量的注意力集中在铁作为限制营养素在世界海洋的所谓高营养素低叶绿素（HNLC）区域中的作用上。 由于超微量营养素铁的缺乏，硝酸盐和磷酸盐在水柱中积累得非常高。 该项目的调查人员最近开始建立定量模型，以说明高浓度氯化锂沃茨的化学性质和浮游生物群落的相关动态。 在这项研究中，调查人员将继续探讨必须纳入包括生态系统动力学和海洋物理学和化学在内的定量模型的关键联系。 这些研究最终应有助于将初级生产中铁限制的实验室研究和公海铁“施肥实验”的结果与其他生物元素，特别是碳的复杂的全球规模模型联系起来。

ABSTRACT A great deal of attention has focussed in recent years on the role of iron as a limiting nutrient in the so-called High- Nutrient Low-Chlorophyll (HNLC) regions of the world ocean. Because of the paucity of the ultramicronutrient iron, nitrate and phosphate build up in the water column at anomalously high levels. The investigators on this project have recently begun to construct quantitative models to account for the chemistry of HNLC waters and the associated dynamics of the pelagic community. In this study, the investigators will continue to explore the critical linkages that must be built into quantitative models that include both ecosystem dynamics and ocean physics and chemistry. These studies should eventually help to link the results of both laboratory studies of iron limitation in primary production and open ocean iron `fertilization experiments' with sophisticated global-scale models of other biogenic elements, especially carbon.