Geochemistry and Microbiology of the Extreme Aquatic Environment in Lake Vida, East Antarctica

东南极洲维达湖极端水生环境的地球化学和微生物学

• 批准号: 171764345
• 负责人: Professor Dr. Bernd Wagner
• 金额: --
• 依托单位: Institut für Geologie und Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/171764345?language=en
• 关键词: Geochemistry; Microbiology; Extreme; Aquatic; Environment

The proposed project is part of a collaborative research program, mainly with partners from the University of Illinois at Chicago, and closely related to an already approved NSF proposal. The project aims on an enhanced understanding of extreme aquatic ecosystems. Lake Vida in the Dry Valleys is among the most extreme aquatic ecosystems in the world. Within the scope of the overall project, the detailed investigation of biogeochemical processes and microbial communities in the lake ice, the lake water and in the sediments will address diversity, adaptive mechanisms and evolutionary processes in the context of the physical evolution of the environment of the aquatic ecosystems. The long-term focus of the German investigations is on the sedimentary inventory of the lake in order to obtain information on past changes in the physical environment of the ecosystem and to better understand the sedimentary characteristics of such extreme environments. The project applied for here is intended, in a first step, to ensure a successful drilling campaign of Lake Vida in austral summer 2010/2011, and to cover expedition and drilling costs, which are not covered by the US collaboration partners within the scope of NSF funding.

拟议的项目是一个合作研究计划的一部分，主要与来自芝加哥伊利诺伊大学的合作伙伴，并密切相关的一个已经批准的NSF提案。该项目旨在增进对极端水生生态系统的了解。干旱河谷中的维达湖是世界上最极端的水生生态系统之一。在整个项目范围内，对湖冰、湖水和沉积物中的生物地球化学过程和微生物群落的详细调查将在水生生态系统环境物理演变的背景下探讨多样性、适应机制和演变过程。德国调查的长期重点是湖泊的沉积物清单，以便获得关于生态系统物理环境过去变化的信息，并更好地了解这种极端环境的沉积特征。在此申请的项目的第一步是确保在2010/2011年南方夏季成功进行维达湖钻探活动，并支付美国合作伙伴在NSF资助范围内不支付的勘探和钻探费用。