研究紹介 Sakikawa,Tetsuichi, Masahiro Nakamura, Kentaro Takagi,Fuyuki Satoh, Takayoshi Koike (2015) Leaf phenology and insect grazing of Japanese white birch saplings grown under free-air ozone exposure. 2nd Joint symposium between Nankai University and Hokkaido University, Sapporo 26th February 2015.