Iron Speciation and Its Biological Availability in Seawater: A Workshop

海水中铁形态及其生物有效性：研讨会

• 批准号: 9314179
• 负责人: Mark Wells
• 金额: $ 6.61万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314179&HistoricalAwards=false
• 关键词: Iron; Speciation; Its; Biological; Availability

9314179 WELLS The controversy surrounding iron limitation of phytoplankton in the open ocean and its potential role in regulating global climate, both in the present and past, has highlighted how little is known about the speciation and biological availability of iron in seawater. Several new methodologies have been developed recently that improve our ability to measure total iron concentrations in "dissolved" and particulate fractions of seawater, however, none address specifically the speciation of iron or its availability to phytoplankton. There is a tremendous need to gather together chemists with theoretical and analytical expertise in iron chemistry and biologists with expertise in the algal physiological aspects of iron to: 1) establish the current level of understanding of iron chemistry and the algal uptake of iron, 2) identify the specific needs and research goals. A small international workshop comprised of both young and senior scientists to address this need will be convened. The objective of the workshop will be to foster cross-disciplinary debate and studies towards developing the analytical tools needed to better define the role of iron in marine biogeochemical cycles and in the global system.

9314179 WELLS 围绕公海浮游植物的铁限制及其在当前和过去调节全球气候中的潜在作用的争议凸显了人们对海水中铁的形态和生物可用性知之甚少。 最近开发了几种新方法，提高了我们测量海水“溶解”和颗粒部分中总铁浓度的能力，但是，没有一个方法专门解决铁的形态或其对浮游植物的可用性。 非常需要将具有铁化学理论和分析专业知识的化学家和具有铁藻类生理学方面专业知识的生物学家聚集在一起，以：1）建立目前对铁化学和藻类对铁的吸收的理解水平，2）确定具体需求和研究目标。 将召开一个由年轻和资深科学家组成的小型国际研讨会来满足这一需求。 研讨会的目标是促进跨学科辩论和研究，以开发更好地定义铁在海洋生物地球化学循环和全球系统中的作用所需的分析工具。