| 项目编号: | 1661723
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| 项目名称: | Collaborative Research: Determining the Vulnerability and Resilience of Boreal Forests and Shrubs across Northwestern North America |
| 作者: | Scott Goetz
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| 承担单位: | Northern Arizona University
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| 批准年: | 2016
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| 开始日期: | 2016-09-01
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| 结束日期: | 2019-08-31
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| 资助金额: | 228000
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Polar
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| 英文关键词: | boreal
; arctic forest
; shrubland site
; vegetation productivity
; work
; northern tree growth
; northern eurasia biome
; post-doctoral researcher
; high northern latitudes
; investigator
; north america
; boreal region
; alaska
; vegetation growth
; region
; adjacent canada
|
| 英文摘要: | The importance of Boreal and Arctic landscapes is recognized by the scientific community as an important area of research. The overarching theory to be tested in this proposal is that the current controls over vegetation growth are not operating as they have been in the past. The investigators have at hand a detailed network of ground measurements of tree-ring data collected across a range of Boreal and Arctic forests and shrublands sites in Alaska and adjacent Canada. This data will be compared with satellite based remote sensing proxies of vegetation productivity. The work is by and large an analysis and comparison of two independent methods for assessing vegetation growth variability in Arctic ecosystems.
This project will contribute to the education of the general public (e.g. annual open house exhibits, websites, blogs from the field), and will partially fund a post-doctoral researcher who will have the opportunity to expand their scientific experience and knowledge of this topic.
This work will focus on Boreal and Arctic forests and shrublands across Alaska and adjacent Canada, regions that are experiencing some of the most rapid warming on the globe today. Satellite observations have revealed significant vegetation productivity trends (both greening and browning) of vegetation at high northern latitudes, with distinct differences between North America and northern Eurasia biomes and between tundra and boreal regions. At the same time, some observations show that the strong correlation between northern tree growth and temperature appears to be weakening in recent decades. The overarching theory to be tested in this proposal is that the current controls over vegetation growth are not operating as they have been in the past. The investigators have at hand a detailed network of in situ ground measurements of tree-ring data collected from across this region. This data will be compared with remote sensing proxies of vegetation productivity (from satellite NDVI), across a range of Boreal and Arctic forests and shrublands sites in Alaska and adjacent Canada. The work will include one year of field data in regions of high priority where the investigators will extract up to date tree ring cores for comparison with recent air temperature and remote sensing records. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91068
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Scott Goetz. Collaborative Research: Determining the Vulnerability and Resilience of Boreal Forests and Shrubs across Northwestern North America. 2016-01-01.
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