本研究によって、現在、オゾンなどのガス状大気汚染物質の測定が検討されている東アジア酸性雨ネットワーク(EANET)におけるオゾン測定地点の設定やオゾンの植物影響評価地点の選定などへの科学的根拠を提供できる。

### 6. 研究成果の主な発表状況

## (1) 主な誌上発表

## <査読付き論文>

1) M. YAMAGUCHI, M. WATANABE, H. MATSUMURA, Y. KOHNO and T. IZUTA: Asian J. Atmos. Environ, 5, 65–78 (2011) “Experimental Studies on the Effects of Ozone on Growth and Photosynthetic Activity of Japanese Forest Tree Species”

2) M. WATANABE, M. YAMAGUCHI, H. MATSUMURA, Y. KOHNO, T. KOIKE and T. IZUTA: Asian J. Atmos. Environ., 5, 205–215 (2011) “A Case Study of Risk Assessment of Ozone Impact on Forest Tree Species in Japan”

3）伊豆田猛: 大気環境学会誌, 47, 1, A12-A15 (2012).「葉のオゾン吸収量に基づいた植物に対するオゾンの影響評価」

4) M. WATANABE, M. YAMAGUCHI, H. MATSUMURA, Y. KOHNO and T. IZUTA: Eur. J. Forest Res., 131, 475–484 (2012) "Risk Assessment of Ozone Impact on Fagus crenata in Japan: Consideration of Atmospheric Nitrogen Deposition"

5) F. AZUCHI, Y. KINOSE, T. MATSUMURA, T. TANOMATA, Y. UEHARA, A. KOBAYASHI, M. YAMAGUCHI and T. IZUTA: Environ. Pollut. 184: 481–487 (2014) "Modeling Stomatal Conductance and Ozone Uptake of Fagus crenata Grown under Different Nitrogen Loads"

6) T. KOIKE, M. WATANABE, Y. HOSHIKA, M. KITAO, H. MATSUMURA, R. FUNADA and T. IZUTA: Climate Change, Air Pollution and Global Challenges: Understanding and Solutions from Forest Research (R. Matyssek et al., eds.), Elsevier. 2013 “Effects of Ozone on Forest Ecosystems in East and Southeast Asia”

7) Y. HOSHIKA, M. WATANABE, N. INADA and T. KOIKE: Ann. Bot. 112: 1149–1158 (2013) "Model-based analysis of avoidance of ozone stress by stomatal closure in Siebold's beech (Fagus crenata)"

8) Y. HOSHIKA, M. WATANABE, N. INADA, Q. MAO and T. KOIKE: Environ. Pollut. 182: 242–247 (2013) "Photosynthetic response of early and late leaves of white birch (Betula platyphylla var. japonica) grown under free-air ozone exposure"

9) M. WATANABE, Y. HOSHIKA, N. INADA and T. KOIKE: Environ. Pollut. 184: 682–689 (2014) "Canopy carbon budget of Siebold's beech Fagus crenata sapling under free air ozone exposure"

10) M. WATANABE, Y. HOSHIKA and T. KOIKE: J. Plant Res. 127: 339–345 (2014) “Photosynthetic responses of Monarch birch seedlings to different timing of free air ozone fumigation”

11) M. KITAO, M. KOMATSU, Y. HOSHIKA, K. YAZAKI, K. YOSHIMURA, S. FUJII, T. MIYAMA and Y. KOMINAMI: Environ. Pollut., 184, 457–463 (2014) "Seasonal ozone uptake by a warm-temperate mixed deciduous and evergreen broadleaf forest in western Japan estimated by the Penman-Monteith approach combined with a photosynthesis-dependent stomatal model"

12) 小松雅史、吉村謙一、藤井佐織、矢崎健一、溝口康子、深山貴文、小南裕志、安田幸生、山野井克己、北尾光俊:関東森林研究(印刷中)「森林における対流圏オゾン濃度の推定」

## (2) 主な口頭発表 (学会等)

1）山口真弘、黄瀬佳之、安土文鹿、上原唯、小林亜由美、鹿又友彰、松村秀幸、伊豆田猛：第54回大気環境学会（2013）「ブナ、コナラ、ミズナラおよびシラカンバの葉の気孔を介したオゾン吸収量の推定」

2）松村秀幸、山口真弘、黄瀬佳之、米倉哲志、伊豆田猛：第54回大気環境学会（2013）「落葉広葉樹4種の葉の純光合成速度におよぼす1成長期間のオゾン暴露の影響とオゾン吸収量との関係」

3）安土文鹿、上原唯、黄瀬佳之、鹿又友彰、小林亜由美、山口真弘、伊豆田猛：第54回大気環境学会（2013）「葉のオゾン吸収量に基づくブナ、ミズナラおよびシラカンバの純光合成速度におけるオゾン感受性の評価」

4) M. WATANABE, Y. HOSHIKA, N. INADA, Q. MAO and T. KOIKE: International Conference “Vegetation Response to Climate Change and Air Pollution, Unifying Evidence and Research across Northern and Southern Hemisphere Jointly organized by: IUFRO Research Group 7*01*00. Bahia, Brazil, September 1–6 2013. “Photosynthetic traits in leaves of Siebold’s beech (Fagus crenata) saplings under free air O $ _{3} $