EAGER: Intra-seasonal Wood Anatomy to Assess Millennia-long Regional Climate Reconstructions

EAGER：季节内木材解剖学以评估长达数千年的区域气候重建

• 批准号: 1256603
• 负责人: Franco Biondi
• 金额: $ 17.16万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-10-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1256603&HistoricalAwards=false
• 关键词: EAGER; Intra; seasonal; Wood; Anatomy

This project will execute a research strategy to determine the processes underlying tree ring formation, from the individual tree level tree-ring formation to regional patterns of plant growth at the landscape scale. The researcher will also use field and remote sensing observations, combined with field manipulations, to establish the causal relationships of climate variability and tree ring growth. The project builds on an EPSCOR-funded field program called Nev-CAN (Nevada Climate-Ecohydrological Assessment Network), which will provide high temporal and spatial resolution monitoring of atmospheric, soil and vegetation variables using in place instrumentation and remote sensing. The study areas are the Sheep and Snake Ranges in Nevada, where the primary tree vegetation is mountain conifers, including the Bristlecone pine, a tree used extensively in paleoclimate reconstructions using tree rings.The broader impacts of the proposal include postdoctoral mentoring and an international collaboration with a Canadian group active in this type of work. The study has the potential to improve our understanding of how bristlecone pine, a tree that provides some of the longest and most important paleoclimate records, reacts to climate variability. In addition, the results of this work may contribute to improved risk assessments for Great Basin ecosystems.

该项目将执行一项研究战略，以确定树木年轮形成的基本过程，从单个树木水平的树木年轮形成到景观尺度上的植物生长区域模式。 研究人员还将利用实地和遥感观测，结合实地操作，建立气候变化和树木年轮生长的因果关系。 该项目建立在由EPSOR资助的称为Nev-CAN（内华达州气候-生态水文评估网络）的实地方案的基础上，该方案将利用现场仪器和遥感技术对大气、土壤和植被变量进行高时空分辨率监测。 研究区域是内华达州的羊和蛇山脉，那里的主要树木植被是山地针叶树，包括狐尾松，一种广泛用于利用树木年轮重建古气候的树木。该提案的更广泛影响包括博士后指导和与活跃在这类工作中的加拿大团体的国际合作。 这项研究有可能提高我们对狐尾松如何对气候变化做出反应的理解，狐尾松是一种提供了一些最长和最重要的古气候记录的树木。 此外，这项工作的结果可能有助于改进对大盆地生态系统的风险评估。