ICCR: Understanding Interannual Net Ecosystem Carbon Exchange Variability in a Tropical Rain Forest

ICCR：了解热带雨林中的年际净生态系统碳交换变化

• 批准号: 0223284
• 负责人: Steven Oberbauer
• 金额: --
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0223284&HistoricalAwards=false
• 关键词: ICCR; Understanding; Interannual; Net; Ecosystem

This project involves characterizing the structure and function of tropical rain forest canopies to assess their carbon budgets and annual carbon fluxes. A variety of methods will be used at a variety of scales, ranging from scaled-up estimates of total canopy photosynthesis and ecosystem respiration from the forest floor to the canopy together with top-down approaches including eddy covariance and remote sensing. The project will take place at La Selva Field Station in Costa Rica. The measurements and modeling results will lead to an understanding of the causes of interannual variability in tree growth and net carbon exchange, will test models of carbon cycle in the tropical rain forest. This work contributes to concerns about the effects of global climate change on the carbon dynamics of tropical forest ecosystems.

该项目涉及描述热带雨林树冠的结构和功能，以评估其碳收支和年度碳通量。将在各种尺度上使用各种方法，从放大估计从森林地面到树冠的树冠总光合作用和生态系统呼吸，以及自上而下的方法，包括涡旋协方差和遥感。该项目将在哥斯达黎加的La Selva野战站进行。测量和模拟结果将有助于了解树木生长和净碳交换年际变化的原因，并将检验热带雨林碳循环模型。这项工作有助于关注全球气候变化对热带森林生态系统碳动态的影响。