Remote sensing of environmental change across northern terrestrial ecosystems

北部陆地生态系统环境变化的遥感

• 批准号: 203231-2008
• 负责人: Treitz, Paul
• 金额: $ 1.68万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=477017
• 关键词: Remote; sensing; environmental; change; across

Arctic tundra and boreal forest environments account for a large proportion of Canada's land surface and are important systems within the context of global climate change research. These northern environments are thought to be particularly sensitive to changes in climate, yet it remains unclear as to how these environments will respond. It is expected that any alterations in arctic tundra and boreal forest ecosystem function associated with increased temperatures will be expressed through shifts in plant phenology (i.e., vegetation growth patterns with season), species composition, and abundance. Remote sensing provides a means for monitoring these shifts, with the potential to characterize biophysical variables that control carbon fluxes over landscapes or regions.

北极苔原和北方森林环境占加拿大土地表面的很大一部分，在全球气候变化研究的背景下是重要的系统。这些北部环境被认为对气候变化特别敏感，但尚不清楚这些环境将如何响应。预计，北极苔原和北方森林生态系统功能的任何变化都将通过植物候位（即带有季节的植被生长方式），物种组成和丰度来表达与温度升高有关的变化。遥感提供了一种用于监视这些偏移的手段，具有表征在景观或区域控制碳通量的生物物理变量的潜力。