TY - GEN AU - Riikonen,Johanna AU - Holopainen,Toini AU - Oksanen,Elina AU - Vapaavuori,Elina TI - Leaf photosynthetic characteristics of silver birch during three years of exposure to elevated concentrations of CO2 and O3 in the field SN - 0829-318X PY - 2007///0320 KW - Acclimatization KW - physiology KW - Betula KW - metabolism KW - Carbon Dioxide KW - Chlorophyll KW - Nitrogen KW - Ozone KW - Photosynthesis KW - Plant Leaves KW - Plant Proteins KW - Ribulose-Bisphosphate Carboxylase KW - Seasons KW - Starch N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1093/treephys/25.5.621 ER -