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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=523401
• 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陆地面积的很大比例，是全球气候变化研究范围内的重要系统。这些北方环境被认为对气候变化特别敏感，但这些环境将如何应对仍不清楚。预计与温度升高相关的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物候的变化来表达（即，植被生长模式与季节），物种组成和丰度。遥感为监测这些变化提供了一种手段，有可能确定控制地貌或区域碳通量的生物物理变量的特征。