Collaborative Research: Ammonia (NH3) Emission from Fertilizer Application: Understanding an Uncertain Input to Air Quality Models

合作研究：施肥过程中的氨 (NH3) 排放：了解空气质量模型的不确定输入

• 批准号: 1236814
• 负责人: Mark Rood
• 金额: $ 48.14万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2018-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1236814&HistoricalAwards=false
• 关键词: Collaborative; Research; Ammonia; NH3; Emission

This research project will measure ammonia emissions from the corn plot at the University of Illinois, Urbana-Champaign (UIUC) Energy Farm and to scale local emissions to the regional scale. The ammonia emissions will be measured by relaxed eddy accumulation and the aerodynamic gradient method using denuders and a cavity ringdown spectrometer, respectively. Emissions above and within the corn canopy at the landscape scale will be interpreted with a bi-directional exchange model. A process-scale modeling approach using EPIC (Erosion Productivity Impact Calculator) and its interactive version (i-EPIC), which are driven by environmental factors regulating ammonia emissions (i.e., meteorology, soil and canopy characteristics, land use, and mass of fertilizer applied), will be used to scale local emissions to the regional scale.The results of the project will be disseminated through the venues of research conferences and publications but also through the use of web-based tools. The principal investigators will interact with the National Atmospheric Deposition Program (NADP) to examine the potential of integration with the existing pilot Ammonia Monitoring Network and with the NADP's Critical Loads and Total Deposition Science subcommittees. As part of the educational and mentoring component, undergraduate students will be recruited, with specific emphasis on underrepresented groups, and mentored by the principal investigators and graduate students, on the research methods of this project. They will also be mentored on preparing presentation material for professional conferences and for transferring their knowledge to high school age female students from diverse backgrounds participating with STEM campus activities. As part of this research project, new teaching modules will be developed for air quality courses with focus on atmospheric deposition models and use of micrometeorological methods. Teaching modules will also be developed for a new summer camp focused on environmental engineering, for high school age female students. The additional teaching modules related to the topic of this proposal will focus on the effects of food and biofuel production on air quality and climate change.

该研究项目将测量伊利诺伊大学厄巴纳-香槟分校 (UIUC) 能源农场玉米地的氨排放量，并将当地排放量扩大到区域规模。氨排放量将分别使用衰减器和腔衰荡光谱仪通过松弛涡流累积法和空气动力梯度法来测量。景观尺度上玉米冠层上方和内部的排放将用双向交换模型进行解释。使用 EPIC（侵蚀生产力影响计算器）及其交互式版本 (i-EPIC) 的过程规模建模方法，由调节氨排放的环境因素（即气象、土壤和树冠特征、土地利用和施肥量）驱动，将用于将当地排放量扩展到区域规模。该项目的结果将通过研究会议和出版物的场所传播 还可以通过使用基于网络的工具。主要研究人员将与国家大气沉积计划 (NADP) 互动，研究与现有试点氨监测网络以及 NADP 的临界负荷和总沉积科学小组委员会整合的潜力。作为教育和指导部分的一部分，将招募本科生，特别是代表性不足的群体，并由主要研究人员和研究生就该项目的研究方法进行指导。她们还将接受指导，为专业会议准备演示材料，并将知识传授给参加 STEM 校园活动的来自不同背景的高中年龄女学生。作为该研究项目的一部分，将为空气质量课程开发新的教学模块，重点关注大气沉降模型和微气象方法的使用。还将为一个新的夏令营开发教学模块，该夏令营专注于环境工程，针对高中年龄段的女学生。与本提案主题相关的附加教学模块将重点关注粮食和生物燃料生产对空气质量和气候变化的影响。