Measuring Soluble Atmospheric Nitrogen Flux to Forest Ecosystems

该项目的目标是开发一种测量大气中可溶氮化合物通量的方法。该系统将首先在密歇根大学生物站(UMBS)的森林中与大气化学计划PROPHET(氧化剂研究计划：光化学、排放和运输)一起开发并用于测量亚硝酸(HONO)通量。这些测量将提供有关森林表面作为HONO来源对大气的重要性的信息。后来，该方法可以扩展到包括其他可溶化学物种。PI和他的合作者的长期目标是了解氮成分进出森林生态系统的通量，大气成分对生态过程的影响，以及反过来，排放对大气化学的影响。

The objective of this project is to develop a methodology for measuring atmospheric fluxes of soluble nitrogen compounds. The system will first be developed and used to measure nitrous acid (HONO) fluxes at the forest of the University of Michigan Biological Station (UMBS) in conjunction with the atmospheric chemistry program PROPHET (Program for Research on Oxidants: PHotochemistry, Emissions, and Transport). These measurements will provide information on the importance of forest surfaces as a source of HONO to the atmosphere. Later the method could be expanded to cover other soluble chemical species. The long-term goal of the PI and his collaborators is to understand fluxes of nitrogen constituents to and from forest ecosystems, the effect of atmospheric constituents on ecological processes, and conversely, the effect of emissions on the chemistry of the atmosphere.