Trees as indicators of past climates and forest dynamics in Central Canada

树木作为加拿大中部过去气候和森林动态的指标

• 批准号: RGPIN-2016-05151
• 负责人: Tardif, Jacques
• 金额: $ 2.04万
• 依托单位: University of Winnipeg
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632205
• 关键词: Trees; indicators; past; climates; forest

The research focuses on how environmental factors (e.g., climate, insect, disease, fire) affect tree growth and tree-ring formation. In Canada, trees produce annual tree rings and often live for many centuries. We can thus utilize them or their tree-ring characteristics to reconstruct conditions prior to recording by instruments. This capability allows us for example to gain information on climate variability prior to European settlement. To do so however, we need a clear understanding of how today's environmental conditions affect tree growth in various species and habitats. This research goes from studying wood anatomy to the quantification of the impact of large scale phenomena like insect outbreaks, forest fires, and climate extremes. Tree-ring research not only allows for a better understanding of growth but it also allows to foresee how future environmental changes brought by human activities and/or natural variations may impact Canadians and their environment. This research mainly focuses on central Canada.

研究重点是环境因素（如气候、虫、病、火）如何影响树木生长和年轮形成。在加拿大，树木每年都会产生年轮，通常可以活上好几个世纪。因此，我们可以利用它们或它们的树轮特征来重建仪器记录之前的条件。例如，这种能力使我们能够在欧洲人定居之前获得气候变化的信息。然而，要做到这一点，我们需要清楚地了解当今的环境条件如何影响不同物种和栖息地的树木生长。这项研究从研究木材解剖到量化昆虫爆发、森林火灾和极端气候等大规模现象的影响。树木年轮研究不仅可以更好地了解树木的生长情况，还可以预测人类活动和/或自然变化带来的未来环境变化如何影响加拿大人及其环境。本研究主要集中在加拿大中部。