Atmospheric - Biospheric Interactions of Ozone, Hydrogen Peroxide and Sulfur Dioxide: Pollutant Transport and Plant Feedback Responses

臭氧、过氧化氢和二氧化硫的大气-生物圈相互作用：污染物输送和植物反馈响应

• 批准号: 9212192
• 负责人: Candis Claiborn
• 金额: $ 8万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9212192&HistoricalAwards=false
• 关键词: Atmospheric; Biospheric; Interactions; Ozone; Hydrogen

This is an award to support research on the transport and fate of sulfur dioxide, ozone and hydrogen peroxide in selected plant species, to use this understanding to interpret the results of laboratory and field measurements and to calculate the fate of air pollutants in the internal regions of plant leaves. Foliar uptake by plants represents an important sink for many air pollutants yet factors for characterizing pollutant uptake are used in regional atmospheric models are currently applied with a large degree of uncertainty. For improving these deposition estimates, laboratory experiments are needed in which gas exchange rates are accurately measured and results interpreted to improve the transport models and validate their predictive capability. The proposal leading to this award was submitted in response to NSF 88-99 as modified by changes dated 09/19/91 to make the Research Initiation Award announcement consistent with changes in NSF 83-57 and published as NSF 90-77. Results of this research are expected to enhance our understanding of the transport and fate of trace gases in plant leaves and lead to more effective parameterization of deposition and emission rates for vegetation, for use in regional air quality models. These, in turn can be utilized in improving engineering design of processes and systems for abatement and control of air pollution.

这一奖项旨在支持研究二氧化硫、臭氧和过氧化氢在特定植物物种中的运输和命运，利用这种理解来解释实验室和现场测量的结果，并计算植物叶片内部区域空气污染物的命运。植物的叶面吸收是许多空气污染物的重要汇，但区域大气模式中用于表征污染物吸收的因子目前的应用具有很大程度的不确定性。为了改进这些沉积估计，需要进行实验室实验，准确测量气体交换速率，并对结果进行解释，以改进输送模型并验证其预测能力。该奖项的提案是根据NSF 88-99提交的，并经过了1991年9月19日的修改，以使研究启动奖公告与NSF 83-57的修改一致，并以NSF 90-77发布。​这项研究的结果有望提高我们对植物叶片中微量气体的运输和命运的理解，并导致更有效的参数化植被的沉积和排放速率，用于区域空气质量模型。这些又可用于改进工艺和系统的工程设计，以减少和控制空气污染。