Arctic Climate Change, Substrate, and Vegetation: The Distribution and Causes of Moist Nonacidic Tundra

北极气候变化、底质和植被：潮湿非酸性苔原的分布和成因

• 批准号: 9732076
• 负责人: Donald Walker
• 金额: $ 204.5万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9732076&HistoricalAwards=false
• 关键词: Arctic; Climate; Change; Substrate; Vegetation

ABSTRACT OPP-9732076 WALKER, DONALD UNIVERSITY OF COLORADO The project will investigate the relationship between climate change, tundra ecosystem, and soil type as part of a multidisciplinary project that addresses the impact of global change on land-atmosphere-ice interactions (LAII) in the Arctic. Regional scale variations in climate gradient and vegetation will be compared to soil type by producing circumarctic maps of vegetation from satellite imagery in combination with field work to verify vegetation and soil classifications. The regional maps and climate models will be used to project the effects of a warming climate on the carbon cycle, exchanges of trace gas fluxes, water and energy, permafrost, and the hydrological cycle. The results of this project will be used in combination with other LAII projects to determine the regional impacts of global change on terrestrial systems in the Arctic.

摘要 OPP-9732076步行者，科罗拉多大学唐纳德分校 该项目将调查气候变化、冻土带生态系统和土壤类型之间的关系，作为解决全球变化对北极陆地-大气-冰相互作用（LAII）影响的多学科项目的一部分。 气候梯度和植被的区域尺度变化将与土壤类型进行比较，方法是根据卫星图像制作环北极植被图，并结合实地工作核实植被和土壤分类。 区域地图和气候模型将用于预测气候变暖对碳循环、微量气体通量交换、水和能源、永久冻土和水文循环的影响。 该项目的结果将与其他LAII项目结合使用，以确定全球变化对北极陆地系统的区域影响。