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| Holocene climate change in the high latitudes of the North American continent: reconstruction of vegetation and fire histories using Hudson Bay sediment records | |
| 项目编号 | 0902850 |
| Miguel Goni | |
| 项目主持机构 | Oregon State University |
| 开始日期 | 2009-10-01 |
| 结束日期 | 2014-09-30 |
| 英文摘要 | This work investigates the impacts of climate change on boreal forest expansion and wildfire intensity/magnitude in high latitude North America. The PI will quantify vascular plant-derived biomarkers and pyro-markers derived from the incomplete combustion of plant biomass in Hudson Bay sediments from different locations and ages expanding periods of contrasting climate. The concentrations and ratios of these products will be used to develop vegetation and fire indices and build historical records for different regions of central and eastern Canada over the Holocene. Combined with analyses of modern samples, these data will be used to quantitatively assess the latitudinal extent and rates of expansion of boreal forest and wildfire during past periods of warm climate (e.g., Holocene Thermal Maximum, Medieval Warm Period, last 100 years) and compare these distributions to those during cold periods (e.g., Little Ice Age). The proposed investigations will foster interdisciplinary interactions among climate scientists, terrestrial and marine biogeochemists. The award supports a female postdoctoral researcher, and will expand international collaborations among Canadian and U.S. scientists and engage the public through outreach activities in local communities. |
| 学科分类 | 08 - 地球科学;0806 - 海洋科学 |
| 资助机构 | US-NSF |
| 项目经费 | 384969 |
| 项目类型 | Standard Grant |
| 国家 | US |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/71979 |
| 推荐引用方式 GB/T 7714 | Miguel Goni.Holocene climate change in the high latitudes of the North American continent: reconstruction of vegetation and fire histories using Hudson Bay sediment records.2009. |
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