CAREER: Constraining Land Carbon Uptake on Regional and Global Scales by Enabling the Interpretation of Two Decades of Trace Gas Measurements

职业：通过解释两个十年的痕量气体测量来限制区域和全球范围内的陆地碳吸收

• 批准号: 2239006
• 负责人: Mary Whelan
• 金额: $ 60.78万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-03-01 至 2028-02-29
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2239006&HistoricalAwards=false
• 关键词: CAREER; Constraining; Land; Carbon; Uptake

This project seeks to develop methods for using existing and ongoing carbonyl sulfide (COS) observations to estimate carbon tracer gas exchange, including carbon dioxide (CO2) in order to better understand the effect of tree litter on carbon cycling within forests. This is an important step toward increasing our understanding of the carbon cycle, and the knowledge gained through the course of this project will enhance our ability to understand and project the impact of changes to the carbon cycle on climate change and the ecosystem. Additionally, the research team will work with a local high school teacher to develop a high school-level leaf litter sorting activity, which will provide students with hands-on experience related to real-world scientific research.The two specific aims of this work include: (1) to distinguish the influence of different components of forest ground cover on the trace gas exchange of COS; and (2) to integrate the importance of understory COS fluxes on ecosystem- and regional-scale evidence of plant functioning. This work seeks to include the collection of tower flux measurements, the processing of remote sensing and inventory data for these tower-scale measurements, Lagrangian inversions for COS surface fluxes, and the identification of previously unknown COS fluxes. This work also includes an 8-week visit from a local high school teacher to develop a litter-sorting activity, which will then be implemented at other nearby schools. Additionally, four local high school students will be invited for 6-week summer internships in the Rutgers Research Intensive Summer Experience (RISE) program.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目旨在开发利用现有和正在进行的硫化羰（COS）观测来估计碳示踪气体交换（包括二氧化碳（CO2））的方法，以便更好地了解树木凋落物对森林内碳循环的影响。这是加深我们对碳循环了解的重要一步，通过该项目获得的知识将增强我们理解和预测碳循环变化对气候变化和生态系统影响的能力。此外，研究团队还将与当地高中教师合作，开展高中水平的落叶分类活动，为学生提供与现实科学研究相关的实践经验。这项工作的两个具体目标包括：（1）区分森林地被植物不同组成部分对COS微量气体交换的影响； (2) 整合林下 COS 通量对生态系统和区域尺度植物功能证据的重要性。这项工作旨在包括塔通量测量的收集、这些塔尺度测量的遥感和库存数据的处理、COS 表面通量的拉格朗日反演以及先前未知的 COS 通量的识别。这项工作还包括当地高中老师进行为期 8 周的访问，开展垃圾分类活动，然后在附近的其他学校实施。此外，四名当地高中生将受邀参加罗格斯大学暑期研究强化体验 (RISE) 项目进行为期 6 周的暑期实习。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。