The Response of Carbon Cycling in Arctic Ecosystems to Global Change: Regional and Pan-Arctic Assessments

北极生态系统碳循环对全球变化的响应：区域和泛北极评估

• 批准号: 9732281
• 负责人: John Hobbie
• 金额: $ 100万
• 依托单位: Marine Biological Laboratory
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-15 至 2005-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9732281&HistoricalAwards=false
• 关键词: Response; Carbon; Cycling; Arctic; Ecosystems

ABSTRACT OPP-9732281 HOBBIE, JOHN MARINE BIOLOGICAL LABORATORY The project will investigate the relationship between global change induced by increased atmospheric carbon dioxide and tundra ecology as part of a multidisciplinary project that addresses the impact of global change on land-atmosphere-ice interactions (LAII) in the Arctic. The role of ecosystems in affecting changes in the atmospheric and terrestrial carbon budgets will be examined in order to understand the processes responsible for carbon release or storage by tundra and cold biogenic-rich soils. The information learned about carbon storage and release will be used in models that simulate ecosystem processes so that future carbon budgets in the Arctic under increased atmospheric carbon dioxide budget conditions may be estimated. The results of this project will be used in combination with those of other LAII projects, especially regional and global scale model simulations, to determine regional impacts of global change on terrestrial ecosystems throughout the Arctic.

该项目将研究由大气二氧化碳增加引起的全球变化与苔原生态之间的关系，作为解决全球变化对北极陆地-大气-冰相互作用（LAII）影响的多学科项目的一部分。将研究生态系统在影响大气和陆地碳收支变化方面的作用，以便了解冻土带和富含生物源的寒冷土壤释放或储存碳的过程。所获得的关于碳储存和释放的信息将用于模拟生态系统过程的模型中，以便在大气二氧化碳预算增加的条件下估计北极未来的碳预算。这个项目的结果将与其他LAII项目的结果结合使用，特别是区域和全球尺度模型模拟，以确定全球变化对整个北极陆地生态系统的区域影响。