MRI: Acquisition of a Next-Generation System for Plant and Ecosystem Gas-Exchange

该主要研究仪器奖资助下一代测量植物和生态系统气体交换系统的收购和开发。新仪器建立在卡内基研究所在一个领域的工作基础上，该领域继续为植物生理学和生物化学、植物进化、植物生态学、生态系统生态学和全球生物地球化学提供基本见解。 新系统将把最新的技术发展，包括腔衰荡光谱（CRDS，用于NH3和稳定同位素）和双量子级联激光器（用于COS）整合到一个单一的系统中，该系统可以在植物和生态系统规模的环境条件下以非常低的浓度高速和准确地测量所有NH3，COS，CO2，H2O。下一代气体交换系统将为一系列用户增强研究和教学基础设施，包括卡内基研究所三个部门（全球生态学，植物生物学，地球物理实验室）的教师和博士后，来自区域大学的研究生和本科生以及来自世界各地的合作者。 使用新系统进行的研究结果将通过摘要和同行评审的出版物以及积极参与专业会议来广泛传播。

This Major Research Instrumentation award funds the acquisition and development of a next-generation system for measuring plant and ecosystem gas-exchange. The new instrument builds on the Carnegie Institution's work in an area that continues to provide fundamental insights for plant physiology and biochemistry, plant evolution, plant ecology, ecosystem ecology, and global biogeochemistry. The new system will incorporate recent technology developments, including cavity ring-down spectroscopy (CRDS, for NH3 and stable isotopes) and dual quantum cascade lasers (for COS) into a single system that can measure all NH3, COS, CO2, H2O with high speed and accuracy, at the very low concentrations typical of ambient conditions, at the plant and ecosystem scale. The next-generation gas exchange system will enhance research and teaching infrastructure for a range of users, including faculty and post-docs at three of the Carnegie Institution's departments (Global Ecology, Plant Biology, Geophysical Laboratory), graduate and undergraduate students from regional universities and collaborators from around the world. Results from the studies conducted with the new system will be broadly disseminated through abstracts and peer reviewed publications, as well as by active participation at professional meetings.