|
Hokkaido University Collection of Scholarly and Academic Papers >
Field Science Center for Northern Biosphere >
Peer-reviewed Journal Articles, etc >
Seasonal variation of isoprene basal emission in mature Quercus crispula trees under experimental warming of roots and branches
| Title: | Seasonal variation of isoprene basal emission in mature Quercus crispula trees under experimental warming of roots and branches |
| Authors: | Matsunaga, Sou N. Browse this author | | Muller, Onno Browse this author | | Chatani, Satoru Browse this author | | Nakamura, Masahiro Browse this author →KAKEN DB | | Nakaji, Tatsuro Browse this author →KAKEN DB | | Hiura, Tsutom Browse this author →KAKEN DB |
| Keywords: | isoprene | | biogenie volatile emission | | Quercus crispula | | experimental warming |
| Issue Date: | Apr-2012 |
| Publisher: | Geochemical Society of Japan |
| Journal Title: | Geochemical Journal |
| Volume: | 46 |
| Issue: | 2 |
| Start Page: | 163 |
| End Page: | 167 |
| Abstract: | Isoprene is a reactive volatile organic compound (VOC), the annual global biogenic emissions of which are the largest of the non-methane VOC. Since isoprene emissions are partly temperature-driven, understanding the relationship between isoprene emission and climate must be improved. Isoprene emission was measured in Quercus crispula, the second-most dominant isoprene-emitting tree species in Japan. Four mature Q. crispula trees were exposed to artificial warming of their roots and branches at approximately 5℃ warmer than ambient temperatures. Four un-warmed control trees were also measured and compared for their emissions over the course of five months. Basal emission rates of isoprene (defined as a normalized emission rate under standard light and temperature conditions) was calculated and compared between warmed and control branches. The basal emission rates varied from 0.17 to 38.5 nmol m^[-2] s^[-1] (average; 10.4 nmol m^[-2] s^[-1]) over the seasons. However, the basal emission rate did not significantly differ between warmed and control leaves. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/52714 |
| Appears in Collections: | 北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 日浦 勉
|
