Development of novel molecular-isotopic tracers for the hydrologic cycle

开发用于水文循环的新型分子同位素示踪剂

• 批准号: 67212578
• 负责人: Dr. Enno Schefuß
• 金额: --
• 依托单位: Zentrum für Marine Umweltwissenschaften (MARUM)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/67212578?language=en
• 关键词: Development; novel; molecular; isotopic; tracers

Novel molecular-isotopic proxy parameters for past continental hydrologic conditions, river discharge and ocean salinity changes will be investigated to provide a basis for applications to sedimentary archives. Therefore, hydrogen isotope compositions of terrestrial plant lipids will be evaluated in soils, marine surface sediments and sediment cores as indicators of continental hydrologic conditions. Hydrogen isotope compositions of algal lipids will be investigated in suspended particulate matter samples, marine surface sediments and sediment cores as new (paleo-) discharge and salinity proxies.

将研究过去大陆水文条件、河流流量和海洋盐度变化的新分子同位素代理参数，为沉积档案的应用提供基础。因此，将评估土壤、海洋表面沉积物和沉积物核心中陆地植物脂质的氢同位素组成，作为大陆水文条件的指标。将在悬浮颗粒物样品、海洋表面沉积物和沉积物核心中研究藻类脂质的氢同位素组成，作为新的（古）排放和盐度替代物。