Biogeochemical Cycling in the Organic-Rich Coastal Environment

富含有机物的沿海环境中的生物地球化学循环

基本信息

项目摘要

9633456 Martens The burial and preservation of organic matter on the continental margins of the world ocean is a process of global importance. In fact, burial out of direct contact with the atmosphere is responsible not only for the deposits of fossil organic matter found throughout the world but also for the persistence of molecular oxygen in the Earth's atmosphere. Understanding the factors impacting the decomposition, preservation, and burial of perimarine organic matter has understandably been one of the classical problems of low-temperature geochemistry. In this project, a group of biogeochemists will be continuing their work on this problem of environmental and economic importance. In this next phase of their research, the focus will be on the relationship of organic matter decomposition and preservation to organic sorption onto sedimentary grains with large surface areas per unit mass (essentially the very finest components of sediments, such as clay minerals). They will carry out laboratory experiments to complement studies of organic sedimentation, decomposition, and burial and four contrasting inner-shelf field sites characterized by different types and rates of organic input as well as different microbiological and sedimentological characteristics. The researchers expect that this approach will lead to an improved quantitative understanding of the relationship of organic preservation to such variables as organic deposit rate, differences in microbial decomposition processes, adsorption and desorption of dissolved organic matter on mineral grains, and burial rate.
小行星9633456 世界海洋大陆边有机物的埋藏和保存是一个具有全球重要性的过程。 事实上,与大气层直接接触的埋藏不仅是世界各地发现的化石有机物质沉积的原因,也是地球大气层中分子氧持续存在的原因。了解影响围海有机质分解、保存和埋藏的因素是低温地球化学的经典问题之一。 在这个项目中,一组地球化学家将继续研究这个具有环境和经济重要性的问题。 在下一阶段的研究中,重点将是有机物分解和保存与每单位质量大表面积沉积颗粒(基本上是沉积物中最细的成分,如粘土矿物)的有机吸附之间的关系。他们将进行实验室实验,以补充对有机物沉积、分解和掩埋以及四个对比鲜明的内陆架实地的研究,这些实地的特点是有机物投入的类型和速度不同,微生物和沉积学特征也不同。研究人员预计,这种方法将导致更好的定量了解有机保存等变量的关系,如有机存款率,微生物分解过程的差异,溶解有机物对矿物颗粒的吸附和解吸,埋藏率。

项目成果

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Christopher Martens其他文献

Nicotinamide riboside supplementation reduces aortic stiffness and blood pressure in middle-aged and older adults
  • DOI:
    10.1016/j.artres.2017.10.021
  • 发表时间:
    2017-12-01
  • 期刊:
  • 影响因子:
  • 作者:
    Christopher Martens;Blair Denman;Melissa Mazzo;Michael Armstrong;Nichole Reisdorph;Matthew McQueen;Michel Chonchol;Douglas Seals
  • 通讯作者:
    Douglas Seals

Christopher Martens的其他文献

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{{ truncateString('Christopher Martens', 18)}}的其他基金

CAREER: Explorable Formal Models of Privacy Policies and Regulations
职业:可探索的隐私政策和法规的正式模型
  • 批准号:
    2319894
  • 财政年份:
    2022
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Continuing Grant
Collaborative Research: In Situ Oxidation Rates of Methane Injected from Seafloor Gas Seeps
合作研究:海底气体渗漏注入甲烷的原位氧化速率
  • 批准号:
    1948824
  • 财政年份:
    2020
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
CAREER: Explorable Formal Models of Privacy Policies and Regulations
职业:可探索的隐私政策和法规的正式模型
  • 批准号:
    1846122
  • 财政年份:
    2019
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Continuing Grant
CRII: SHF: Supporting Domain-Specific Inquiry with Rule-Based Modeling
CRII:SHF:通过基于规则的建模支持特定领域的查询
  • 批准号:
    1755922
  • 财政年份:
    2018
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
RAPID: Hurricane Irma Impacts on Nitrogen Cycling in Florida Bay
RAPID:飓风艾尔玛对佛罗里达湾氮循环的影响
  • 批准号:
    1807077
  • 财政年份:
    2017
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
Collaborative Research: The Role of Sponges in the Coastal Nitrogen Cycle
合作研究:海绵在沿海氮循环中的作用
  • 批准号:
    1132155
  • 财政年份:
    2011
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
Collaborative Proposal: In Situ Quantification of Sponge N Cycling in Coastal Ecosystems
合作提案:沿海生态系统海绵氮循环的原位定量
  • 批准号:
    0624406
  • 财政年份:
    2006
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
N2 Fixation in Marine Sponges: A New Nitrogen Source for Coastal Ecosystems
海洋海绵中的 N2 固定:沿海生态系统的新氮源
  • 批准号:
    0351893
  • 财政年份:
    2004
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Standard Grant
Biogeochemical Cycling in the Organic-Rich Coastal Environment
富含有机物的沿海环境中的生物地球化学循环
  • 批准号:
    0002358
  • 财政年份:
    2000
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Continuing Grant
Biogeochemical Cycling in the Organic-Rich Coastal Environment
富含有机物的沿海环境中的生物地球化学循环
  • 批准号:
    9217570
  • 财政年份:
    1993
  • 资助金额:
    $ 52.5万
  • 项目类别:
    Continuing Grant

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CAREER: Deconvolving organic substrates as the critical link between changes in organic matter and global biogeochemical sulfur, carbon, and oxygen cycling
职业:解卷积有机底物作为有机物变化与全球生物地球化学硫、碳和氧循环之间的关键联系
  • 批准号:
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职业:气候变化对铁循环和有机碳之间相互关系的影响:从分子到现场尺度的环境生物地球化学研究和教育
  • 批准号:
    0847683
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Biogeochemical Cycling of Organic Carbon in Soil Ecosystems as Affected by Black Carbon (REVISED)
受黑碳影响的土壤生态系统中有机碳的生物地球化学循环(修订版)
  • 批准号:
    0425995
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    2004
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    $ 52.5万
  • 项目类别:
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Collaborative Research: Biogeochemical Cycling of Particulate and Dissolved Organic Matter in the Arctic Ocean using Molecular Markers
合作研究:利用分子标记对北冰洋颗粒物和溶解有机物进行生物地球化学循环
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    0125301
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富含有机物的沿海环境中的生物地球化学循环
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Biogeochemical Cycling in the Organic-Rich Coastal Environment
富含有机物的沿海环境中的生物地球化学循环
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Biogeochemical Cycling in the Organic-Rich Coastal Environment
富含有机物的沿海环境中的生物地球化学循环
  • 批准号:
    9017979
  • 财政年份:
    1991
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REU: Biogeochemical Cycling in the Organic-Rich Coastal Environment
REU:有机物丰富的沿海环境中的生物地球化学循环
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