Soil Emissions of Nitrogen Trace Gases: Leveraging the Decommissioning of the Desert FACE Site

氮微量气体的土壤排放:利用沙漠 FACE 站点的退役

基本信息

  • 批准号:
    0717296
  • 负责人:
  • 金额:
    $ 35.41万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-09-15 至 2011-08-31
  • 项目状态:
    已结题

项目摘要

Terrestrial ecosystems are an important component of the global carbon cycle and as a consequence have the potential to influence the rate of climate change. For approximately 10 years, The U.S. Department of Energy (DOE) has been supporting a series of Free Air CO2 Enrichment (FACE) experiments to evaluate the effects of elevated atmospheric carbon dioxide (CO2) concentration on terrestrial ecosystems. One such experiment is the Nevada Desert FACE Facility (NDFF) in the Mojave Desert. No other experiment has continuously applied elevated CO2 to a desert ecosystem. The DOE is in the process of terminating its FACE experiments. This decommissioning process represents a unique opportunity to complete a comprehensive analysis of how a desert ecosystem functions under elevated CO2. During the shut down, DOE will only support research on ecosystem carbon storage. This NSF research will leverage the DOE support to enable investigations of the effects of elevated CO2 on desert nitrogen cycling. The research will: 1) examine the amount and the isotopic signature of nitrogen throughout the ecosystem, 2) measure how nitrogen cycles and transforms within the soil and how this changes after the additional carbon dioxide is removed, and 3) measure the magnitude and isotopic composition of nitrogen gases emitted from the ecosystem following the removal of the elevated CO2 treatment.In addition to influencing the overall response of the ecosystem to elevated CO2, changes in ecosystem nitrogen cycling have the potential to influence regional air quality, acidification of precipitation, food production, and human health. This is especially true in the arid southwest because it is among the fastest growing regions in the US. A firm understanding of the controls on emissions of nitrogen gases will help inform future policy and remediation decisions. Other broader impacts of the research include: (1) teaching and training of undergraduate and graduate students, (2) participation of underrepresented groups, and (3) dissemination of results to non-academic audiences.
陆地生态系统是全球碳循环的重要组成部分,因此有可能影响气候变化的速度。 近10年来,美国能源部(DOE)一直在支持一系列自由空气二氧化碳富集(FACE)实验,以评估大气二氧化碳(CO2)浓度升高对陆地生态系统的影响。 其中一个实验是位于莫哈韦沙漠的内华达州沙漠FACE设施(NDFF)。 没有其他实验持续将升高的二氧化碳应用于沙漠生态系统。 能源部正在终止其FACE实验。 这一退役过程是一个独特的机会,可以完成对沙漠生态系统在二氧化碳浓度升高下如何发挥作用的全面分析。 在关闭期间,能源部将只支持生态系统碳储存的研究。 NSF的这项研究将利用能源部的支持,调查二氧化碳浓度升高对沙漠氮循环的影响。该研究将:1)检查整个生态系统中氮的数量和同位素特征,2)测量氮如何在土壤中循环和转化,以及在去除额外的二氧化碳后如何变化,和3)测量去除升高的CO2处理后生态系统排放的氮气的数量和同位素组成。除了影响生态系统的整体响应外,随着CO2浓度的升高,生态系统氮循环的变化有可能影响区域空气质量、降水酸化、粮食生产和人类健康。 在干旱的西南部尤其如此,因为它是美国增长最快的地区之一。 对氮气排放控制的深入了解将有助于为未来的政策和补救决策提供信息。 研究的其他更广泛的影响包括:(1)本科生和研究生的教学和培训,(2)代表性不足的群体的参与,以及(3)向非学术受众传播结果。

项目成果

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Jed Sparks其他文献

Jed Sparks的其他文献

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{{ truncateString('Jed Sparks', 18)}}的其他基金

Collaborative Research: Dimensions: Integrating phylogenetics, ecophysiology and transcriptomics to understand the diversity of hornwort-cyanobacterium symbiosis
合作研究:维度:整合系统发育学、生态生理学和转录组学,了解金鱼藻-蓝藻共生的多样性
  • 批准号:
    1831416
  • 财政年份:
    2019
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
Dissertation Research: The genetic architecture and ecological function of a novel coloration phenotype
论文研究:新型着色表型的遗传结构和生态功能
  • 批准号:
    1309171
  • 财政年份:
    2013
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
Dissertation Research: Closing the nitrogen budget: Quantifying denitrification in an arid ecosystem undergoing nitrogen enrichment
论文研究:关闭氮预算:量化经历氮富集的干旱生态系统中的反硝化
  • 批准号:
    1309124
  • 财政年份:
    2013
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
Dissertation Research: Genetic and Environmental Mechanisms Mediating Disease Resistance and Tolerance in Amphibians
论文研究:介导两栖动物抗病性和耐受性的遗传和环境机制
  • 批准号:
    1310036
  • 财政年份:
    2013
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: The Effects of Elevated Ozone on Global Carbon and Water Cycling Mediated by Plants
论文研究:臭氧浓度升高对植物介导的全球碳和水循环的影响
  • 批准号:
    1010892
  • 财政年份:
    2010
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Adaptive Differentiation, Selection and Water Use of a Seasonally Dry Tropical Oak: Implications for Global Change
合作研究:季节性干燥热带橡树的适应性分化、选择和用水:对全球变化的影响
  • 批准号:
    0843368
  • 财政年份:
    2009
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Continuing Grant
DISSERTATION RESEARCH: Combined Effects of Elevated NO2, O3, and CO2 on Plant Growth and Productivity
论文研究:升高的 NO2、O3 和 CO2 对植物生长和生产力的综合影响
  • 批准号:
    0710005
  • 财政年份:
    2007
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Trace N Gas Efflux From Aridland Systems: Partitioning Abiotic and Biotic Drivers
论文研究:干旱地区系统中的痕量 N 气体流出:非生物和生物驱动因素的划分
  • 批准号:
    0709642
  • 财政年份:
    2007
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
CAREER: Direct Foliar Uptake of Atmospheric Nitrogen: Molecular to Ecosystem Considerations
职业:叶面直接吸收大气氮:分子到生态系统的考虑
  • 批准号:
    0237674
  • 财政年份:
    2003
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant

相似海外基金

Soil nitrogen turnover and nitrous oxide emissions in continuous permafrost landscapes of Northern China in a changing climate (NIFROCLIM)
气候变化下中国北方连续多年冻土景观的土壤氮周转和一氧化二氮排放(NIFROCLIM)
  • 批准号:
    410850447
  • 财政年份:
    2019
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  • 项目类别:
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N2O emissions as response of process-related soil microbial activity to different irrigation and nitrogen fertilization regimes in potato cropping
N2O 排放作为与过程相关的土壤微生物活动对马铃薯种植中不同灌溉和施氮方式的响应
  • 批准号:
    405305955
  • 财政年份:
    2018
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Research Grants
DISSERTATION RESEARCH: Connecting dryland soil trace gas emissions of NOx, N2O and CO2 to microbial community dynamics along a nitrogen deposition gradient
论文研究:将旱地土壤中 NOx、N2O 和 CO2 的痕量气体排放与沿氮沉降梯度的微生物群落动态联系起来
  • 批准号:
    1405525
  • 财政年份:
    2014
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Standard Grant
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    327645-2006
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    2010
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    $ 35.41万
  • 项目类别:
    Discovery Grants Program - Individual
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    329968-2006
  • 财政年份:
    2009
  • 资助金额:
    $ 35.41万
  • 项目类别:
    University Faculty Award
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    327645-2006
  • 财政年份:
    2009
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Discovery Grants Program - Individual
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    329968-2006
  • 财政年份:
    2008
  • 资助金额:
    $ 35.41万
  • 项目类别:
    University Faculty Award
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    327645-2006
  • 财政年份:
    2008
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Discovery Grants Program - Individual
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    327645-2006
  • 财政年份:
    2007
  • 资助金额:
    $ 35.41万
  • 项目类别:
    Discovery Grants Program - Individual
Gross nitrogen cycling processes and nitrous oxide emissions in cultivated and non-cultivated hummocky soil landscapes
耕作和非耕作丘状土壤景观中的总氮循环过程和一氧化二氮排放
  • 批准号:
    329968-2006
  • 财政年份:
    2007
  • 资助金额:
    $ 35.41万
  • 项目类别:
    University Faculty Award
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