期刊
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
卷 56, 期 1, 页码 29-37出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1021443709010051
关键词
Erica multiflora; Globularia alypum; emission rate; isoprenoids; terpenes; climate change; soil drought; warming
资金
- ISONET [MC-RTN-CT-2003 504720]
- Spanish Government [CGL2004-01402/BOS, CGL2006-04025/BOS]
- Fundacion BBVA [506675]
- Catalan Government [SGR2005-00312]
We tested the effect of forecasted soil drought and warming climate conditions for the next decades on emission rates of isoprenoids by mediterranean shrublands. We measured isoprenoid emissions by whole dominant mediterranean woody plants (Erica multiflora L. and Globularia alypum L.) inhabiting the studied shrublands. Monoterpene emissions were detected in both species, but isoprene was emitted only by E. multiflora. Maximum emission rates were found during the hottest periods (except for G. alypum, in which they occurred in autumn), and minimum emission rates in winter in E. multiflora. Terpene emission rates ranged from 0.08 mu g/(g dry wt h) in winter in E. multiflora to 8.8 mu g/(g dry wt h) in G. alypum in autumn. In E. multiflora, the terpene emission rates decreased in response to soil drought only in summer, but increased in response to warming in spring and autumn. Isoprene emissions ranged from 0.1 mu g/(g dry wt h) in spring to 4.4 mu g/(g dry wt h) in summer. The effect of the treatments was only detected in autumn when soil drought and warming had a negative effect on isoprene emission rates. These data might improve our knowledge of isoprenoid emissions at the canopy level and in response to climate change, soil drought, or warming.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据