Diversity and Adaptive Physiology of Riparian Cottonwoods and Hybrid Poplars

河岸杨树和杂交杨树的多样性和适应性生理学

• 批准号: 38682-2013
• 负责人: Rood, Stewart
• 金额: $ 4.15万
• 依托单位: University of Lethbridge
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=593067
• 关键词: Diversity; Adaptive; Physiology; Riparian; Cottonwoods

Poplars, Populus trees, provide the foundations for a range of forests around the Northern Hemisphere. They are the most abundant and extensive trees in Canada, and southern Alberta provides a global centre of poplar biodiversity as five species overlap and the four cottonwoods, or river valley poplars, hybridize. Cottonwoods also provide the parental species for artificial hybrid poplars, the fastest-growing trees in Canada and other temperate regions. Unfortunately, riparian cottonwood forests have been collapsing, largely due to river damming and water withdrawal for irrigation and other human uses.

杨树为北半球周围一系列森林提供了基础。它们是加拿大最丰富、分布最广泛的树木，艾伯塔省南部提供了全球杨树生物多样性中心，因为五个物种重叠，四种三叶杨或河谷杨树杂交。三叶杨还为人工杂交杨树提供了亲本物种，人工杂交杨树是加拿大和其他温带地区生长最快的树木。不幸的是，河岸白杨林正在崩溃，这主要是由于河流筑坝和取水用于灌溉和其他人类用途。