Silicon Availability, Limitation and Cycling in OligotrophicSurface Waters

寡营养地表水中硅的有效性、限制和循环

• 批准号: 8711915
• 负责人: David Nelson
• 金额: $ 14.49万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-01 至 1990-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8711915&HistoricalAwards=false
• 关键词: Silicon; Availability; Limitation; Cycling; OligotrophicSurface

This is new study of the nutrient dynamics of silica in the Sargasso Sea. The field work will be done at Station S south of Bermuda, a site with good historical biological oceanographic data as well as ongoing studies. The study will use a new high sensitivity silica technique and collaborates with a new proposal by McCarthy and Garside that is centered on the nitrogen dynamics of the same system. Both uptake and dissolution of silica in surface waters will be measured, as well as the ambient concentrations and the particulate flux in sediment traps. Silica dynamics are mainly influenced by diatom growth and removal processes and this study will be one of the first to focus on the distribution of diatoms in the Sargasso Sea.

这是对二氧化硅营养动态的新研究 在马尾藻海 现场工作将在 百慕大以南的S站，一个具有良好历史意义的地点 生物海洋学数据以及正在进行的研究。 这项研究将使用一种新的高灵敏度二氧化硅技术 并与麦卡锡的一项新提案合作， 加塞德，是集中在氮动力学的 同样的系统。 二氧化硅的吸收和溶解 将测量地表沃茨以及周围环境 浓度和沉积物捕集器中的颗粒通量。 硅动力学主要受硅藻生长的影响， 这项研究将是第一批 专注于海藻中硅藻的分布 海