New capabilities for measuring organic matter degradation in the deepest oceans on Earth

测量地球最深海洋有机物降解的新功能

基本信息

  • 批准号:
    NE/V008870/1
  • 负责人:
  • 金额:
    $ 12.2万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2020
  • 资助国家:
    英国
  • 起止时间:
    2020 至 无数据
  • 项目状态:
    已结题

项目摘要

The hadal zone, with depths of 6000-11000 m, accounts for nearly half of the ocean's depth range, but has only recently been recognized as potential hotspot for organic carbon turnover and microbial activity. To understand the carbon mineralization and the related biogeochemical processes in hadal sediments is of global importance as carbon recycling in sediments can have critical implications for ocean chemistry, redox conditions, nutrient availability and hence for life in the oceans and on land. Due to inherent difficulties of retrieving samples for later analyses from hadal depths, a key element to make step changes in this field of research is the ability to use sensor technology to measure the important biogeochemical parameters directly in the hadal sediments and water column, i.e. without retrieving samples. The National Oceanography Centre (NOC) are world-leaders in developing autonomous miniaturized chemical sensors for use in the open ocean. Their existing technology has been tested to 6000 m depth and can measure a wide range of chemicals in environments from the polar regions to the tropics. This project will bring together NOC experts with researchers from the newly created centre of excellence for ultra-deep sea research: the Danish Center for Hadal Research (HADAL) at the University of Southern Denmark (SDU) to jointly improve our knowledge about the processes governing organic carbon degradation in deep-sea trenches. In order to achieve this, we will share resources with the HADAL Center participants, to: i) conduct a knowledge exchange and a collaborative design workshop with both partners to decide on required sensor adaptations ii) test the sensors at the HADAL pressure testing facility to depths > 6000 m to study their limitations and required improvements, and iii) develop the first proof of concept data set of nutrients measured directly in hadal sediments during joint field work to a deep-sea trench off Japan. The outcomes of this project will answer exciting research questions about organic carbon degradation processes in deep-sea trenches and their impact on the surrounding ecosystem and will provide a proof-of-concept data set that will position us to strengthen the collaboration by writing joint proposals for future collaborations.
超深带的深度为6000-11000米,占海洋深度范围的近一半,但直到最近才被认为是有机碳周转和微生物活动的潜在热点。了解深海沉积物中的碳矿化和相关的地球化学过程具有全球重要性,因为沉积物中的碳循环对海洋化学、氧化还原条件、营养物质的有效性以及海洋和陆地上的生命具有重要意义。由于从超深海中提取样品供以后分析的固有困难,在这一研究领域取得阶段性变化的一个关键因素是能够利用传感器技术直接测量超深海沉积物和水柱中的重要生物地球化学参数,即不提取样品。国家海洋学中心(NOC)是开发用于公海的自主微型化学传感器的世界领导者。他们现有的技术已经在6000米的深度进行了测试,可以测量从极地到热带的各种环境中的化学物质。该项目将使国家海洋学委员会的专家与新成立的超深海研究英才中心-南丹麦大学丹麦海达尔研究中心-的研究人员汇聚一堂,共同增进我们对深海海沟有机碳降解过程的了解。为了实现这一目标,我们将与HADAL中心的参与者分享资源,以:i)与双方合作伙伴进行知识交流和协作设计研讨会,以决定所需的传感器调整; ii)在哈达尔压力测试设施测试深度> 6000米的传感器,以研究其局限性和所需的改进,㈢在对日本近海深海海沟进行联合实地工作期间,开发第一套直接在超深海沉积物中测量的营养物概念验证数据集。该项目的成果将回答有关深海海沟中有机碳降解过程及其对周围生态系统影响的令人兴奋的研究问题,并将提供一个概念验证数据集,使我们能够通过编写未来合作的联合提案来加强合作。

项目成果

期刊论文数量(0)
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会议论文数量(0)
专利数量(0)

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Anna Lichtschlag其他文献

The dynamics of pore water in subsurface sediments at the site of controlled CO2 release experiment
CO2 控制释放实验现场地下沉积物孔隙水动态
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ayumi Tsukasaki;Natalie Hicks;Peter Taylor;Masahiro Suzumura;Anna Lichtschlag;Henrik Stahl;Rachael H. James
  • 通讯作者:
    Rachael H. James
Factors influencing microplastic abundances in the sediments of a seagrass-dominated tropical atoll
  • DOI:
    10.1016/j.envpol.2024.124483
  • 发表时间:
    2024-09-15
  • 期刊:
  • 影响因子:
  • 作者:
    Freya Radford;Alice A. Horton;Stacey Felgate;Anna Lichtschlag;James Hunt;Valdemar Andrade;Richard Sanders;Claire Evans
  • 通讯作者:
    Claire Evans
Deep-sea drilling of the 13°30′ N oceanic core complex: Assessing links between fluid flow, metal enrichment and seafloor massive sulfide deposit formation near Semenov-1
北纬 13°30′海洋核心复合体的深海钻探:评估塞米诺夫-1 附近流体流动、金属富集与海底块状硫化物矿床形成之间的联系
  • DOI:
    10.1016/j.lithos.2024.107921
  • 发表时间:
    2025-02-01
  • 期刊:
  • 影响因子:
    2.500
  • 作者:
    Andrew J. Martin;Bramley J. Murton;Christopher J. MacLeod;John W. Jamieson;Isobel I. Yeo;Sven Petersen;Katie A. McFall;Simon Allerton;Anna Lichtschlag;Christian Bishop;Acer Figueroa;Szu-Ying Lai
  • 通讯作者:
    Szu-Ying Lai
サハリン島沖の海底表層型ガスハイドレート
萨哈林岛沿岸海底表面天然气水合物
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ayumi Tsukasaki;Natalie Hicks;Peter Taylor;Masahiro Suzumura;Anna Lichtschlag;Henrik Stahl;Rachael H. James;八久保 晶弘
  • 通讯作者:
    八久保 晶弘
スラムから学ぶこと:ニュー・アーバン・アジェンダに寄せて
贫民窟的教训:新的城市议程
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ayumi Tsukasaki;Natalie Hicks;Peter Taylor;Masahiro Suzumura;Anna Lichtschlag;Henrik Stahl;Rachael H. James;八久保 晶弘;志摩憲寿
  • 通讯作者:
    志摩憲寿

Anna Lichtschlag的其他文献

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{{ truncateString('Anna Lichtschlag', 18)}}的其他基金

A novel technology to understand environmental changes in marine sediments
了解海洋沉积物环境变化的新技术
  • 批准号:
    MR/X035387/1
  • 财政年份:
    2024
  • 资助金额:
    $ 12.2万
  • 项目类别:
    Fellowship
A novel approach to measure nutrient fluxes in permeable sediments
测量可渗透沉积物中养分通量的新方法
  • 批准号:
    NE/X012654/1
  • 财政年份:
    2022
  • 资助金额:
    $ 12.2万
  • 项目类别:
    Research Grant

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