Stability of Naturally- and Anthropogenically-Disturbed Upland Tundra Surfaces

自然和人为干扰的高地苔原表面的稳定性

• 批准号: 0090037
• 负责人: Ronald Sletten
• 金额: $ 5.69万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0090037&HistoricalAwards=false
• 关键词: Stability; Naturally; Anthropogenically; Disturbed; Upland

The Arctic tundra on the Northslope of Alaska is increasingly impacted by human land use. Areas around and within the Arctic National Wildlife Refuge have been designated as part of the National Petroleum Reserve and may potentially experience oil exploration and development. The ability of the tundra to recover from construction and disturbance will be investigated here. Sites that were disturbed in the 1950s-1980s will be resampled to see how fast tundra vegetation recolonizes opened soil surfaces and to explore the mechanisms which promote recolonization. These results would improve our understanding of the sensitivity of the tundra to human impacts.

阿拉斯加北坡的北极苔原越来越受到人类土地使用的影响。 北极国家野生动物保护区周围和内部的地区已被指定为国家石油储备的一部分，可能会进行石油勘探和开发。 冻土带从建设和干扰中恢复的能力将在这里进行调查。 在20世纪50年代至80年代受到干扰的网站将重新采样，看看如何快速苔原植被土壤表面开放，并探讨促进土壤化的机制。 这些结果将提高我们对冻土带对人类影响的敏感性的理解。