Collaborative Research: Sensitivity of Circum-Arctic Peatland Carbon to Holocene Warm Climates and Climate Seasonality

合作研究：环北极泥炭地碳对全新世温暖气候和气候季节性的敏感性

• 批准号: 1108116
• 负责人: David Beilman
• 金额: $ 43.92万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1108116&HistoricalAwards=false
• 关键词: Collaborative; Research; Sensitivity; Circum; Arctic

Collaborative Research: RUI: Sensitivity of Circum-Arctic Peatland Carbon to Holocene Warm Climates and Climate Seasonality (PIs: Zicheng Yu, David Beilman, and Philip Camill) Recent accelerated Arctic warming has caused widespread changes in terrestrial ecosystems, including carbon dynamics. Past climate warming and documented ecosystem responses provide crucial insights from Earth?s history for understanding and projecting possible responses to future climate change. In this project, researchers from Lehigh University, University of Hawaii and Bowdoin College will evaluate the outcomes of ?natural climate-warming experiments? that have occurred across the Arctic over the Holocene (the last 12,000 years). They will focus on two warm climate intervals: (1) the Holocene Thermal Maximum ranging in timings between 10,000 and 6000 years ago, and (2) the warm Medieval Climate Anomaly around 1000 years ago. The funds were requested (1) to collect new samples from carbon-rich peatlands from several critical regions (including Alaska, Mackenzie Basin, Hudson Bay Lowlands, Labrador, and Kamchatka), (2) to carry out integration and synthesis of available data, and (3) to work on climate-carbon modeling experiments along with their collaborators. The idea that both temperature and climate seasonality are dominant controls of carbon balances in carbon-rich Arctic ecosystems has important implications for projecting the fate of Arctic carbon in the future, as future warming is expected mainly in the winter season. Other broader impacts include (1) the support of new faculty career development, (2) training of undergraduate students, graduate students, and a postdoctoral fellow, emphasizing groups traditionally underrepresented in the natural sciences, (3) international collaborations and training through two workshops, and (4) public outreach through a symposium on Arctic climate change and soil carbon dynamics and the development of long-term exhibits at the Peary-MacMillan Arctic Museum at Bowdoin College.

协作研究：RUI：北极泥炭陆碳对全新世温暖气候和气候季节性的敏感性（PIS：Zicheng Yu，David Beilman和Philip Camill）最近加速的北极变暖导致了陆地生态系统的广泛变化，包括碳动态。过去的气候变暖和记录的生态系统反应提供了地球历史的重要见解，以理解和投射对未来气候变化的可能反应。在这个项目中，利哈伊大学，夏威夷大学和鲍登学院的研究人员会评估自然气候温暖实验的结果吗？在全新世（过去12，000年）中，北极发生了这种情况。他们将重点关注两个温暖的气候间隔：（1）全新世在10,000至6000年前的时间范围，以及（2）1000年前大约1000年前的中世纪中世纪气候异常。要求（1）从多个关键地区（包括阿拉斯加，麦肯齐·巴斯（Mackenzie Basin），哈德森湾（Hudson Bay Lowlands），拉布拉多（Labrador）和坎奇特卡（Kamchatka）中收集新的样品，（2），以进行可用数据的整合和合成，以及（3），以及（3），以及（3），以及（3），以及（3），以及（3），并与他们的气候碳模型构建实验者一起进行。温度和气候季节性都是对富含碳的北极生态系统中碳平衡的主要控制的想法对未来投射北极碳的命运具有重要意义，因为未来预计将来的变暖主要是在冬季。其他更广泛的影响包括（1）支持新教师职业发展，（2）对本科生，研究生和博士后研究员的培训，传统上强调了自然科学中的人数不足，（3）国际合作和培训，通过两个研讨会，以及（4）对公众的发展和（4）公众的发展和土壤宣传，并在耕种和土壤上进行宣传，以宣传和土壤的境地宣传，并建立了土壤的风气，并建立了土壤的风气范围，并建立了土壤的范围。 Bowdoin College的Peary-Macmillan北极博物馆。