Collaborative Research: Cold-season gas exchange of arctic plants - resolving winter carbon and water balances of Alaskan arctic tundra

Investigators from the University of Alabama Tuscaloosa and Florida International University have received funding to investigate physiological processes of arctic tundra vegetation during the winter. The study will increase our understanding of physiological processes of arctic tundra vegetation under snow during the cold season and increase our knowledge of how these processes contribute to the carbon cycling and climate change. The project will investigate cold season plant physiology, carbon acquisition under snow, carbon turnover, and sources of water for the plants during the cold season, mortality, and respiration rate sensitivity to predicted changes in temperature. The results are expected to provide new insights into plant physiology and carbon dynamics of two tundra ecosystems during the cold season. Funding Source: Arctic Natural Sciences (ANS) Sponsor: University of Alabama Tuscaloosa: 801 University Blvd. Tuscaloosa, AL 35487 205/348-5152

阿拉巴马大学塔斯卡卢萨分校与佛罗里达国际大学的研究人员已获得资助，开展冬季北极苔原植被生理过程相关研究。本研究将加深我们对寒冷季节积雪覆盖下北极苔原植被生理过程的理解，并增进我们对此类过程如何参与碳循环与气候变化的认知。该项目将探究寒冷季节植物生理、积雪下的碳获取、碳周转、寒冷季节植物水分来源、植株死亡率，以及呼吸速率对预测性温度变化的敏感性。研究结果有望为寒冷季节下两类苔原生态系统的植物生理与碳动态提供全新见解。资助来源：北极自然科学项目（Arctic Natural Sciences, ANS） 资助方：阿拉巴马大学塔斯卡卢萨分校，地址：阿拉巴马州塔斯卡卢萨市大学大道801号，邮编35487，联系电话：205/348-5152