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An automated greenhouse gas detection system for carbon dioxide, nitrous oxide and methane

二氧化碳、一氧化二氮和甲烷的自动温室气体检测系统

基本信息

批准号：
407060-2011
负责人：
Whalen, Joann
金额：
$ 3.11万
依托单位：
McGill University
依托单位国家：
加拿大
项目类别：
Research Tools and Instruments - Category 1 (<$150,000)
财政年份：
2010
资助国家：
加拿大
起止时间：
2010-01-01 至 2011-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=472617
关键词：
automated greenhouse gas detection system

项目摘要

Greenhouse gas emissions are driving global climate change. Agricultural practices and human-induced disturbance/management of Canadian forests affect the microbial processes controlling carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) emissions from soils. We are requesting a gas chromatograph system that can measure these gases simultaneously and is equipped with a 100-tray autosampler for efficient, high-throughput analysis. This equipment supports research programs that investigate the microbially-mediated reactions leading to respiration and nitrification in aerobic soil environments of agricultural and forest ecosystems, as well as denitrification and methane production/consumption in anaerobic soils (e.g., following snowmelt and flooding, in riparian buffers). Ongoing research includes multiple field experiments in Quebec and controlled laboratory incubations, generating more than 10,000 samples per year for analysis of CO2, N2O and CH4. Our two stand-alone gas chromatographs for CO2 and N2O have failed repeatedly in the past 2 years and are compromising our ability to complete required analysis on time and within budget. We have no capacity to analyze CH4 with the current equipment. We absolutely require a modern, automated system for greenhouse gas analysis to sustain our research programs. The cost-effective and robust gas chromatograph system described in this proposal is urgently needed to increase our research capacity and productivity.

温室气体排放正在推动全球气候变化。加拿大森林的农业实践和人为干扰/管理影响控制土壤中二氧化碳 (CO2)、一氧化二氮 (N2O) 和甲烷 (CH4) 排放的微生物过程。我们需要一种能够同时测量这些气体并配备 100 托盘自动进样器的气相色谱系统，以实现高效、高通量的分析。该设备支持研究项目，研究微生物介导的反应，导致农业和森林生态系统的有氧土壤环境中的呼吸和硝化，以及厌氧土壤中的反硝化和甲烷生产/消耗（例如，在融雪和洪水之后，在河岸缓冲区中）。正在进行的研究包括在魁北克进行的多项现场实验和受控实验室孵化，每年生成超过 10,000 个样本用于分析 CO2、N2O 和 CH4。我们的两台独立的 CO2 和 N2O 气相色谱仪在过去两年中多次出现故障，影响了我们在预算内按时完成所需分析的能力。我们目前的设备没有能力分析CH4。我们绝对需要一个现代化的自动化温室气体分析系统来维持我们的研究计划。迫切需要本提案中描述的具有成本效益且坚固的气相色谱系统来提高我们的研究能力和生产力。