Nitrogen isotope fractionation and geological nitrogen cycle

氮同位素分馏和地质氮循环

基本信息

  • 批准号:
    419380-2012
  • 负责人:
  • 金额:
    $ 2.04万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2015
  • 资助国家:
    加拿大
  • 起止时间:
    2015-01-01 至 2016-12-31
  • 项目状态:
    已结题

项目摘要

Light stable isotopes have become a routine and robust tool to trace material sources and monitor (bio)geochemical processes in planetary and geosciences. For example, carbon isotopes have been used to examine the carbon cycle in various temporal and spatial scales on the Earth. This effort has significantly advanced our understanding of the evolution of and interaction between the Earth's mantle, crust, and particularly atmosphere, in which the level of greenhouse gas CO2 directly impacts the climate and environment. In striking contrast, the cycle of nitrogen, a component equally important as carbon in all Earth's reservoirs, is still poorly understood even though several of its species (NH3, N2O, N2) also act as greenhouse gases. This has been mainly attributed to (1) the poor knowledge of nitrogen isotope effects in key processes controlling nitrogen transfer and siting at different pressure-temperature conditions and (2) poorly constrained boundary conditions to define the nitrogen properties of different reservoirs. To fill this gap, this Discovery Program has two objectives: (1) use laboratory- and field-based investigations to determine the nitrogen isotope fractionations between different nitrogen species at a variety of temperatures related to important nitrogen cycling processes, such as abiotic nitrogen reduction, ammonium-ammonia transformation, ammonia degassing, and ammonium exchange between minerals. (2) clarify the uncertainties in the study of large-scale nitrogen cycling across subduction zones, including characterizing the nitrogen behavior in early subduction and detecting the recycled crustal nitrogen in arc volcanic rocks and their contributions to the global geological nitrogen cycle.
轻稳定同位素已成为追踪物质来源和监测行星和地球科学中(生物)地球化学过程的常规和强大的工具。例如,碳同位素已被用于研究地球上各种时空尺度的碳循环。这一努力极大地促进了我们对地球地幔、地壳,特别是大气层的演化和相互作用的理解,其中温室气体二氧化碳的水平直接影响气候和环境。与此形成鲜明对比的是,氮的循环,一个在地球所有水库中与碳同样重要的成分,仍然知之甚少,尽管它的几个物种(NH3,N2 O,N2)也作为温室气体。这主要是由于(1)对控制氮迁移的关键过程中的氮同位素效应以及在不同压力-温度条件下的定位认识不足以及(2)限定不同储层的氮性质的边界条件约束不足。 为了填补这一空白,本探索计划有两个目标: (1)使用实验室和实地调查,以确定在与重要的氮循环过程有关的各种温度下不同氮物质之间的氮同位素分馏,例如非生物氮还原、铵-氨转化、氨脱气和矿物之间的铵交换。 (2)澄清了在研究俯冲带大规模氮循环方面的不确定性,包括确定俯冲早期氮行为的特征和检测弧火山岩中再循环的地壳氮及其对全球地质氮循环的贡献。

项目成果

期刊论文数量(0)
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会议论文数量(0)
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Li, Long其他文献

Urban-rural disparity in the relationship between ambient air pollution and preterm birth
环境空气污染与早产关系的城乡差异
Stability and Hopf bifurcation analysis for a two-enterprise interaction model with delays
具有时滞的两企业交互模型的稳定性和 Hopf 分岔分析
Ir/Zn-cocatalyzed chemo- and atroposelective [2+2+2] cycloaddition for construction of C─N axially chiral indoles and pyrroles.
  • DOI:
    10.1126/sciadv.adk1704
  • 发表时间:
    2023-12-22
  • 期刊:
  • 影响因子:
    13.6
  • 作者:
    Yang, Jian;Xie, Zhong-Yang;Ye, Yu-Jie;Ye, Sheng-Bing;Wang, Yi-Bo;Wang, Wen-Tao;Qian, Peng-Cheng;Song, Ren-Jie;Sun, Qing;Ye, Long-Wu;Li, Long
  • 通讯作者:
    Li, Long
Medical high-entropy alloy: Outstanding mechanical properties and superb biological compatibility.
  • DOI:
    10.3389/fbioe.2022.952536
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    5.7
  • 作者:
    Liu, Changxi;Yang, Chengliang;Liu, Jia;Tang, Yujin;Lin, Zhengjie;Li, Long;Liang, Hai;Lu, Weijie;Wang, Liqiang
  • 通讯作者:
    Wang, Liqiang
Spatial and Temporal Variation and Prediction of Ecosystem Carbon Stocks in Yunnan Province Based on Land Use Change.

Li, Long的其他文献

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{{ truncateString('Li, Long', 18)}}的其他基金

Cycles of H2O, C, N, S and vital metals in early-Earth and Mars analog environments: geological control on life in extreme conditions and its insights into origin of life and search for life on extraterrestrial planets
早期地球和火星模拟环境中H2O、C、N、S和重要金属的循环:极端条件下生命的地质控制及其对生命起源和地外行星生命搜寻的见解
  • 批准号:
    RGPIN-2019-06003
  • 财政年份:
    2022
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Cycles of H2O, C, N, S and vital metals in early-Earth and Mars analog environments: geological control on life in extreme conditions and its insights into origin of life and search for life on extraterrestrial planets
早期地球和火星模拟环境中H2O、C、N、S和重要金属的循环:极端条件下生命的地质控制及其对生命起源和地外行星生命搜寻的见解
  • 批准号:
    RGPIN-2019-06003
  • 财政年份:
    2021
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Aerodynamic Devices that Minimize Soiling of Road Vehicles
最大限度减少道路车辆污染的空气动力装置
  • 批准号:
    563314-2021
  • 财政年份:
    2021
  • 资助金额:
    $ 2.04万
  • 项目类别:
    University Undergraduate Student Research Awards
Cycles of H2O, C, N, S and vital metals in early-Earth and Mars analog environments: geological control on life in extreme conditions and its insights into origin of life and search for life on extraterrestrial planets
早期地球和火星模拟环境中H2O、C、N、S和重要金属的循环:极端条件下生命的地质控制及其对生命起源和地外行星生命搜寻的见解
  • 批准号:
    RGPIN-2019-06003
  • 财政年份:
    2020
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Cycles of H2O, C, N, S and vital metals in early-Earth and Mars analog environments: geological control on life in extreme conditions and its insights into origin of life and search for life on extraterrestrial planets
早期地球和火星模拟环境中H2O、C、N、S和重要金属的循环:极端条件下生命的地质控制及其对生命起源和地外行星生命搜寻的见解
  • 批准号:
    RGPIN-2019-06003
  • 财政年份:
    2019
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2018
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Stable Isotope Geochemistry
稳定同位素地球化学
  • 批准号:
    1000228696-2012
  • 财政年份:
    2017
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Canada Research Chairs
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2017
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Stable Isotope Geochemistry
稳定同位素地球化学
  • 批准号:
    1000228696-2012
  • 财政年份:
    2016
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Canada Research Chairs
Stable Isotope Geochemistry
稳定同位素地球化学
  • 批准号:
    1228696-2012
  • 财政年份:
    2015
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Canada Research Chairs

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相似海外基金

Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2018
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2017
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2014
  • 资助金额:
    $ 2.04万
  • 项目类别:
    Discovery Grants Program - Individual
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2013
  • 资助金额:
    $ 2.04万
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    Discovery Grants Program - Individual
Nitrogen isotope fractionation and geological nitrogen cycle
氮同位素分馏和地质氮循环
  • 批准号:
    419380-2012
  • 财政年份:
    2012
  • 资助金额:
    $ 2.04万
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    Discovery Grants Program - Individual
Nitrogen isotope fractionation and nitrogen plant nutrition study in alpine ecosystems of the Northern Caucasus
北高加索高山生态系统氮同位素分馏和氮植物营养研究
  • 批准号:
    19698455
  • 财政年份:
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Benthic Carbon Oxidation, Denitrification, and Nitrogen Isotope Fractionation in Continental Margin Sediments
大陆边缘沉积物中的底栖碳氧化、反硝化和氮同位素分馏
  • 批准号:
    9116275
  • 财政年份:
    1992
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Nitrogen Cycling in Marine Sediments: Isotope Fractionation Effects
海洋沉积物中的氮循环:同位素分馏效应
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    9018668
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    1991
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Nitrogen Isotope Fractionation in Marine Zooplankton
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    8614199
  • 财政年份:
    1986
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Nitrogen Isotope Fractionation and the Relative Rates of Nitrogen Transformations
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    7823270
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    1979
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