An investigation of the ecological anomaly of the tundra of southern Newfoundland and ecosystem response to stress

纽芬兰南部苔原生态异常及生态系统对胁迫响应的调查

• 批准号: 116918-2007
• 负责人: Hutchinson, Thomas
• 金额: $ 1.54万
• 依托单位: Trent University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=366268
• 关键词: investigation; ecological; anomaly; tundra; southern

Title:An investigation of the tundra lying at the  southern end of Newfoundland  and the effect of climate change on this  unique systemAs one drives south from St Johns,Nfld  the vegetation changes from boreal forest  till, at the southern-most end of the Avalon and Burin peninsulas, the ecosystem encountered is arctic tundra.This appearance of tundra so far south is not  due to long frozen months but to the intensely foggy environbment. Some locations on this tundra have foggy days more than half of the year  cutting down incoming solar radiation and giving very low annual heat units.The tundra is ancient , believed to trace back to much more extensive areas in post glacial times.Plants and animals, including caribou live here. Given the rapid melting of the Greenland ice cap, accelerated  run-off and  accelerated calving of icebergs, floating down the Labrador and Newfoundland coast ,is it possible that the fogs will increase and  the southern tundra climate will detiorate? This study will examine the  vegetation and soil conditions, look for green house gas emission changes over time and assess the likelihood of cooling , with consequences for the land and people of Newfoundland.

标题：对纽芬兰最南端苔原的调查以及气候变化对这个独特系统的影响当人们从佛罗里达州圣约翰斯向南行驶时，植被从北方森林开始变化，直到阿瓦隆和布林半岛的最南端，遇到的生态系统是北极苔原。如此遥远的南部出现苔原并不是因为长期的冰冻，而是因为浓雾。 环境。这片苔原上的一些地方一年中有一半以上的时间有雾，减少了太阳辐射，导致年热量单位非常低。苔原很古老，据信可以追溯到冰期后更广阔的地区。包括驯鹿在内的植物和动物生活在这里。鉴于格陵兰冰盖迅速融化，径流加速，冰山崩解加速，沿着拉布拉多和纽芬兰海岸漂流，雾气是否会增加，南部苔原气候会恶化？这项研究将检查植被和土壤条件，寻找温室气体排放随时间的变化，并评估降温的可能性，这对纽芬兰的土地和人民造成影响。