Niagara Escarpment Tree-Ring Project

这项建议寻求支持对生长在加拿大尼亚加拉悬崖悬崖上的长寿针叶树北方白色雪松进行树木年代学研究。 加拿大科学家以前的研究导致了一个出版的1,783年环宽年表的发展，从布鲁斯半岛在安大略，我们有一个未出版的延长这一年表，跨越近3,000年。通过发现丰富的亚化石材料，进一步延伸的潜力已经得到了明确的证明。支持者已获准查阅和使用圭尔夫大学加拿大研究小组在过去十年中收集的2 500多棵活树和死树的核心和切片样本。他们建议对这些样本进行分类和分析，开发最强的样本子集用于树木气候分析。他们还建议开发两个新的年表，从悬崖的远西部和北方延伸，并在东部极端的布鲁斯半岛进一步取样，以便更完整地模拟T. octagenta/是跨越空间和时间。该项目的第二年将致力于树木气候分析，以实现气候重建的目标。

This proposal seeks support for dendrochronological research on the long-lived conifer northern white cedar, found growing on the cliffs of the Niagara Escarpment in Canada. Previous research by Canadian scientists resulted in the development of a published 1,783 year ring-width chronology from the Bruce Peninsula in Ontario, and we have an unpublished extension of this chronology, which spans nearly 3,000 years. The potential for further extension has been clearly demonstrated through the discovery of abundant subfossil material. The proponents have been given access to, and permission to use, the entire collection of more than 2,500 living and dead tree core and section samples collected over the past decade by the Canadian research team at the University of Guelph. They propose to catalog and analyze these samples, developing the strongest subset of samples to use for dendroclimatic analysis. They also propose to develop two new chronologies, from the far western and northern extensions of the Escarpment, and to sample further on the Bruce Peninsula on the eastern extreme, in order to more completely model the climate signal of T. occidenta/is across space and time. The second year of this project will be dedicated to dendroclimatic analyses, toward the goal of climate reconstruction.