Development and Application of Novel Isotope Techniques for Tracing Nutrient Cycling in Watersheds

流域养分循环追踪同位素新技术的开发和应用

基本信息

  • 批准号:
    203307-2012
  • 负责人:
  • 金额:
    $ 3.93万
  • 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

Widespread application of nitrogen (N)- and phosphorus (P)-based fertilizers in industrial agriculture, but also N and P in urban runoff and wastewater effluents from cities and from industrial point sources, cause increasing nutrient releases into aquatic environments. In many countries including Canada this has resulted in nitrate loading of aquifers and eutrophication of surface water bodies causing problems such as drinking water deterioration and algae blooms, among others. The objective of this 5-year research program is to combine newly developed isotope tracers with established physical, chemical and isotopic approaches to gain new insights into N and P cycling in terrestrial and aquatic ecosystems. Novel isotope techniques will be developed and applied in order to obtain a better understanding of sources and processes in the N and P cycles that affect water quality in Canadian watersheds. These include 1) site-specific N isotope measurements on N2O; 2) the analysis of 17-O in nitrate and sulfate for tracing the fate of atmospheric nitrogen and sulfur; 3) the determination of oxygen isotope ratios of phosphate to identify sources and processes affecting phosphate in the environment; 4) determining the transit time of N in soils with isotopic labels, and 5) boron (B) isotope analyses for differentiating urban waste water effluents from agricultural return flows. Laboratory experiments, soil plot studies with agricultural soils characterized by different land use, controlled nutrient releases in artificial streams, and watershed wide studies will be conducted to test this novel multi-tracer approach using a combination of physical, chemical and isotopic techniques. It is anticipated that the research team will be able to differentiate nutrient inputs from atmospheric deposition, urban runoff and wastewater effluents, agricultural return-flows, and industrial point sources. The significance of this novel multi-tracer approach is that the impact of natural and different anthropogenic factors, including urban, agricultural, and industrial activities, on water quality of surface water bodies will be better quantified. This knowledge will be essential for developing future water management strategies for watersheds in Canada and elsewhere.
工业化农业中氮(N)和磷(P)基肥料的广泛应用,以及城市径流和来自城市和工业点源的废水中的N和P,导致越来越多的营养物释放到水生环境中。在包括加拿大在内的许多国家,这导致含水层的硝酸盐含量和地表水体的富营养化,造成饮用水恶化和藻类大量繁殖等问题。这项为期5年的研究计划的目标是将联合收割机新开发的同位素示踪剂与现有的物理,化学和同位素方法相结合,以获得对陆地和水生生态系统中N和P循环的新见解。将开发和应用新的同位素技术,以便更好地了解影响加拿大流域水质的氮和磷循环的来源和过程。这些技术包括:1)对N_2O进行特定地点的N同位素测量; 2)分析硝酸盐和硫酸盐中的17-O,以追踪大气中氮和硫的去向; 3)测定磷酸盐的氧同位素比值,以确定影响环境中磷酸盐的来源和过程; 4)用同位素标记确定土壤中N的运输时间,以及5)用于区分城市废水流出物与农业回流的硼(B)同位素分析。实验室实验,土壤小区研究与农业土壤的特点是不同的土地利用,控制养分释放的人工溪流,流域范围内的研究将进行测试这种新的多示踪剂的方法,使用物理,化学和同位素技术相结合。预计研究小组将能够区分大气沉积、城市径流和废水、农业回流和工业点源的营养输入。这种新的多示踪剂方法的意义在于,自然和不同的人为因素,包括城市,农业和工业活动,对地表水体水质的影响将更好地量化。这方面的知识将是必不可少的,为加拿大和其他地方的流域制定未来的水管理战略。

项目成果

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Mayer, Bernhard其他文献

What is driving the ITF? An illumination of the Indonesian throughflow with a numerical nested model system
  • DOI:
    10.1016/j.dynatmoce.2010.03.002
  • 发表时间:
    2010-08-01
  • 期刊:
  • 影响因子:
    1.7
  • 作者:
    Mayer, Bernhard;Damm, Peter E.;Rizal, Syamsul
  • 通讯作者:
    Rizal, Syamsul
Sub-cycle slicing of phase-locked and intense mid-infrared transients
  • DOI:
    10.1088/1367-2630/16/6/063033
  • 发表时间:
    2014-06-17
  • 期刊:
  • 影响因子:
    3.3
  • 作者:
    Mayer, Bernhard;Schmidt, Christian;Leitenstorfer, Alfred
  • 通讯作者:
    Leitenstorfer, Alfred
Effect of thermal maturity on remobilization of molybdenum in black shales
  • DOI:
    10.1016/j.epsl.2016.06.004
  • 发表时间:
    2016-09-01
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    Ardakani, Omid H.;Chappaz, Anthony;Mayer, Bernhard
  • 通讯作者:
    Mayer, Bernhard
Isotopic characterization of nitrate sources and transformations in Lake Winnipeg and its contributing rivers, Manitoba, Canada
  • DOI:
    10.1016/j.jglr.2012.02.004
  • 发表时间:
    2012-01-01
  • 期刊:
  • 影响因子:
    2.2
  • 作者:
    Mayer, Bernhard;Wassenaar, Leonard I.
  • 通讯作者:
    Wassenaar, Leonard I.
Cyclohexene-Embedded Dicyanomethylene Merocyanines - Consecutive Three-Component Coupling-Addition Synthesis and Chromophore Characteristics.
  • DOI:
    10.1002/open.202300128
  • 发表时间:
    2023-09
  • 期刊:
  • 影响因子:
    2.3
  • 作者:
    Papadopoulos, Julian;Reiss, Guido J.;Mayer, Bernhard;Mueller, Thomas J. J.
  • 通讯作者:
    Mueller, Thomas J. J.

Mayer, Bernhard的其他文献

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{{ truncateString('Mayer, Bernhard', 18)}}的其他基金

Advancing scientific knowledge on fouling, erosion and corrosion in Once Through Steam Generators (OTSGs)
推进直流蒸汽发生器 (OTSG) 结垢、侵蚀和腐蚀方面的科学知识
  • 批准号:
    532379-2018
  • 财政年份:
    2021
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Collaborative Research and Development Grants
Innovative multifaceted approaches for tracing the sources and fate of nutrients and contaminants in watersheds
用于追踪流域营养物和污染物的来源和归宿的创新多方面方法
  • 批准号:
    RGPIN-2017-03877
  • 财政年份:
    2021
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
Innovative multifaceted approaches for tracing the sources and fate of nutrients and contaminants in watersheds
用于追踪流域营养物和污染物的来源和归宿的创新多方面方法
  • 批准号:
    RGPIN-2017-03877
  • 财政年份:
    2020
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
Advancing scientific knowledge on fouling, erosion and corrosion in Once Through Steam Generators (OTSGs)
推进直流蒸汽发生器 (OTSG) 结垢、侵蚀和腐蚀方面的科学知识
  • 批准号:
    532379-2018
  • 财政年份:
    2020
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Collaborative Research and Development Grants
Advancing scientific knowledge on fouling, erosion and corrosion in Once Through Steam Generators (OTSGs)
推进直流蒸汽发生器 (OTSG) 结垢、侵蚀和腐蚀方面的科学知识
  • 批准号:
    532379-2018
  • 财政年份:
    2019
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Collaborative Research and Development Grants
Innovative multifaceted approaches for tracing the sources and fate of nutrients and contaminants in watersheds
用于追踪流域营养物和污染物的来源和归宿的创新多方面方法
  • 批准号:
    RGPIN-2017-03877
  • 财政年份:
    2019
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
Innovative multifaceted approaches for tracing the sources and fate of nutrients and contaminants in watersheds
用于追踪流域营养物和污染物的来源和归宿的创新多方面方法
  • 批准号:
    RGPIN-2017-03877
  • 财政年份:
    2018
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
Innovative multifaceted approaches for tracing the sources and fate of nutrients and contaminants in watersheds
用于追踪流域营养物和污染物的来源和归宿的创新多方面方法
  • 批准号:
    RGPIN-2017-03877
  • 财政年份:
    2017
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
Development and Application of Novel Isotope Techniques for Tracing Nutrient Cycling in Watersheds
流域养分循环追踪同位素新技术的开发和应用
  • 批准号:
    203307-2012
  • 财政年份:
    2016
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Discovery Grants Program - Individual
ANR - Environmental baseline conditions for impact assessment of unconventional gas exploitation: advancing geochemical tracer and monitoring techniques
ANR - 非常规天然气开采影响评估的环境基线条件:先进的地球化学示踪剂和监测技术
  • 批准号:
    463605-2014
  • 财政年份:
    2015
  • 资助金额:
    $ 3.93万
  • 项目类别:
    Strategic Projects - Group

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