|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Modeling of Stomatal Conductance for Estimating Ozone Uptake of Fagus crenata Under Experimentally Enhanced Free-air Ozone Exposure
| Title: | Modeling of Stomatal Conductance for Estimating Ozone Uptake of Fagus crenata Under Experimentally Enhanced Free-air Ozone Exposure |
| Authors: | Hoshika, Yasutomo Browse this author →KAKEN DB | | Watanabe, Makoto Browse this author →KAKEN DB | | Inada, Naoki Browse this author | | Koike, Takayoshi Browse this author →KAKEN DB |
| Keywords: | Fagus crenata | | Ozone uptake | | Stomatal conductance modeling | | Japan | | Ozone |
| Issue Date: | Sep-2012 |
| Publisher: | Springer Netherlands |
| Journal Title: | Water, Air, & Soil Pollution |
| Volume: | 223 |
| Issue: | 7 |
| Start Page: | 3893 |
| End Page: | 3901 |
| Publisher DOI: | 10.1007/s11270-012-1158-9 |
| Abstract: | We examined a performance of the multiplicative stomatal conductance model to estimate the stomatal ozone uptake for Fagus crenata. Parameterization of the model was carried out by in-situ measurements in a free-air ozone exposure experiment. The model performed fairly well under ambient conditions, with low ozone concentration. However, the model overestimated stomatal conductance under enhanced ozone condition due to ozone-induced stomatal closure. A revised model that included a parameter representing ozone-induced stomatal closure showed better estimation of ozone uptake. Neglecting ozone-induced stomatal closure induced a 20 % overestimation of the stomatal uptake of ozone. The ozone-induced stomatal closure was closely related to stomatal ozone uptake, rather than AOT40 (accumulated concentrations of ozone exceeding 40 nmol mol^[-1]). Our results suggest that ozone-induced stomatal closure should be implemented to stomatal conductance model for estimating ozone uptake for F. crenata and the implementation will contribute to adequate risk assessments of ozone impacts on F. crenata forests in Japan. |
| Rights: | The final publication is available at www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/50281 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 星加 康智
|
