• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Global change biology >Impact of global warming on the tree species composition of boreal forestsin Finland and effects on emissions of isoprenoids
【24h】

Impact of global warming on the tree species composition of boreal forestsin Finland and effects on emissions of isoprenoids

机译：全球变暖对芬兰北方森林树木种类组成的影响以及对类异戊二烯排放的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study aims to identify how climate change may influence total emissions of monoterpene and isoprene from boreal forest canopies. The whole of Finland is assumed to experience an annual mean temperature (T) increase of 4 degreesC and a precipitation increase of 10% by the year 2100. This will increase forest resources throughout the country. At the same time, the proportions of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) in southern Finland (60 degrees less than or equal to latitude <65N) will be reduced from the current 40-50% to less than 10-20%, with increased dominance of birches (Betula pendula and Betula pubescens). In northern Finland (65 degrees less than or equal to latitude <70N), the proportions of Norway spruce and Scots pine will be balanced at a level of about 40% as the result of an increase in Norway spruce from the current 21% to 37% and a concurrent reduction in Scots pine from 63% to 40%. The proportion of birches is predicted to increase from the current 17% to 23%, but these will become the dominant species only on the most fertile sites.
机译：这项研究旨在确定气候变化如何影响北方森林冠层的单萜和异戊二烯的总排放量。假设到2100年，整个芬兰的年平均温度（T）升高4％，降水增加10％。这将增加整个国家的森林资源。同时，芬兰南部（低于或等于北纬65度以下的60度）中的苏格兰松（Pinus sylvestris）和挪威云杉（Picea abies）的比例将从目前的40-50％降低低于10-20％，桦木（Betula pendula和Betula pubescens）的优势度增加。在芬兰北部（小于或等于北纬70度为65度），由于目前的挪威云杉数量增加，挪威云杉和苏格兰松树的比例将保持在40％左右的水平从21％降至37％，同时将苏格兰松从63％降低至40％。预计桦树的比例将从目前的17％增加到23％，但这些桦树仅在最肥沃的地区才会成为优势物种。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号