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科罗拉多州唐纳德大学沃克该项目将研究气候变化，苔原生态系统和土壤类型之间的关系，这是一个多学科项目的一部分，该项目涉及全球变化对北极地区土地 - 大气冰相互作用（LAII）的影响。 通过生产卫星图像的繁殖植被图与现场工作相结合以验证植被和土壤分类，将将气候梯度和植被的区域尺度变化与土壤类型进行比较。 区域地图和气候模型将用于投射变暖气候对碳循环，痕量气通量，水和能量，多年冻土以及水文循环的影响。 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。