The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption

触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响

基本信息

  • 批准号:
    RGPIN-2015-03746
  • 负责人:
  • 金额:
    $ 1.97万
  • 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

Climate drives the biological processes occurring in soil yet is a poorly described and seldom considered part of nitrogen management in agriculture. This is due to the number and complexity of processes involved in the soil N cycle. In this proposal we examine the role of climatic triggers (thawing of frozen soil and wetting of dry soil) in stimulating bursts of microbial activity and causing soil N losses. Specifically this work focuses on the influence substrate availability on inorganic nitrogen processes that control the timing and relative importance of nitrification and denitrification in producing N2O emissions. My hypothesis is that environmental events trigger microbial metabolism through the release of substrates as a result of microbial cell-lysis and solubilization of soil organic matter. Further, it is the rate at which microbial metabolism acts on these substrates, as influenced by soil temperature and water content, and the architecture of carbon and nitrogen distribution which determines the location, intensity, and products of denitrification and therefore N2O emissions.
气候驱动着土壤中发生的生物过程,但在农业氮素管理中,气候是一个描述不多、很少考虑的部分。这是由于土壤氮循环过程的数量和复杂性。在这个建议中,我们研究的作用,气候触发器(解冻的冻土和湿润的干燥土壤)刺激爆发的微生物活动,造成土壤氮素损失。具体来说,这项工作的重点是对无机氮过程,控制硝化和反硝化的时间和相对重要性,在生产N2O排放的影响基板可用性。我的假设是,环境事件触发微生物代谢,通过释放底物作为微生物细胞裂解和溶解土壤有机质的结果。此外,它是微生物代谢作用于这些底物的速率,受土壤温度和含水量的影响,以及碳和氮分布的结构,决定了反硝化作用的位置,强度和产物,因此N2O排放。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

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Burton, David其他文献

Psychophysiology of Monotonous Driving, Fatigue and Sleepiness in Train and Non-Professional Drivers: Driver Safety Implications.
  • DOI:
    10.3390/bs13100788
  • 发表时间:
    2023-09-22
  • 期刊:
  • 影响因子:
    2.6
  • 作者:
    Lees, Ty;Chalmers, Taryn;Burton, David;Zilberg, Eugene;Penzel, Thomas;Lal, Sara
  • 通讯作者:
    Lal, Sara
Introducing Mindfulness as a Self-Care and Clinical Training Strategy for Beginning Social Work Students
  • DOI:
    10.1007/s12671-012-0134-1
  • 发表时间:
    2013-12-01
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Gockel, Annemarie;Burton, David;Bryer, Ellen
  • 通讯作者:
    Bryer, Ellen
Aerodynamic drag interactions between cyclists in a team pursuit
  • DOI:
    10.1007/s12283-015-0172-8
  • 发表时间:
    2015-06-01
  • 期刊:
  • 影响因子:
    1.7
  • 作者:
    Barry, Nathan;Burton, David;Brown, Nicholas A. T.
  • 通讯作者:
    Brown, Nicholas A. T.
Shared decision-making in cardiology: Do patients want it and do doctors provide it?
  • DOI:
    10.1016/j.pec.2009.10.013
  • 发表时间:
    2010-08-01
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    Burton, David;Blundell, Nicholas;Elwyn, Glyn
  • 通讯作者:
    Elwyn, Glyn
Dynamic leg-motion and its effect on the aerodynamic performance of cyclists
  • DOI:
    10.1016/j.jfluidstructs.2016.05.007
  • 发表时间:
    2016-08-01
  • 期刊:
  • 影响因子:
    3.6
  • 作者:
    Crouch, Timothy N.;Burton, David;Sheridan, John
  • 通讯作者:
    Sheridan, John

Burton, David的其他文献

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{{ truncateString('Burton, David', 18)}}的其他基金

The integration of site-specific measures of soil N status and climate in improving nitrogen fertilizer use efficiency in cool humid climates
结合土壤氮状况和气候的特定地点措施来提高凉爽湿润气候下氮肥的利用效率
  • 批准号:
    RGPIN-2020-07043
  • 财政年份:
    2022
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
The integration of site-specific measures of soil N status and climate in improving nitrogen fertilizer use efficiency in cool humid climates
结合土壤氮状况和气候的特定地点措施来提高凉爽湿润气候下氮肥的利用效率
  • 批准号:
    RGPIN-2020-07043
  • 财政年份:
    2021
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
The integration of site-specific measures of soil N status and climate in improving nitrogen fertilizer use efficiency in cool humid climates
结合土壤氮状况和气候的特定地点措施来提高凉爽湿润气候下氮肥的利用效率
  • 批准号:
    RGPIN-2020-07043
  • 财政年份:
    2020
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption
触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响
  • 批准号:
    RGPIN-2015-03746
  • 财政年份:
    2019
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption
触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响
  • 批准号:
    RGPIN-2015-03746
  • 财政年份:
    2018
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption
触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响
  • 批准号:
    RGPIN-2015-03746
  • 财政年份:
    2017
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
Assessing and modeling the impacts of treated municipal biosolid amendments on spruce plantation nutrition and growth in Nova Scotia, Canada
评估和模拟经过处理的城市生物固体修正对加拿大新斯科舍省云杉种植园营养和生长的影响
  • 批准号:
    463513-2014
  • 财政年份:
    2016
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Collaborative Research and Development Grants
The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption
触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响
  • 批准号:
    RGPIN-2015-03746
  • 财政年份:
    2016
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
Assessing and modeling the impacts of treated municipal biosolid amendments on spruce plantation nutrition and growth in Nova Scotia, Canada
评估和模拟经过处理的城市生物固体修正对加拿大新斯科舍省云杉种植园营养和生长的影响
  • 批准号:
    463513-2014
  • 财政年份:
    2015
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Collaborative Research and Development Grants
Evaluating the spatial variation in soil nitrogen supply of potato fields in Prince Edward Island
评估爱德华王子岛马铃薯田土壤氮供应的空间变化
  • 批准号:
    469992-2014
  • 财政年份:
    2014
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Engage Grants Program

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猪链球菌2型分子伴侣trigger factor调控机制研究
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The influence of trigger events on bursts of soil microbial metabolism and N2O production and consumption
触发事件对土壤微生物代谢爆发和N2O产生和消耗的影响
  • 批准号:
    RGPIN-2015-03746
  • 财政年份:
    2019
  • 资助金额:
    $ 1.97万
  • 项目类别:
    Discovery Grants Program - Individual
Modeling Core
建模核心
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    10097981
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    2018
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    $ 1.97万
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Modeling Core
建模核心
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    10326813
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