TY - Sciences in Cold and Arid Regions A1 - XiuMing Liu, JiaSheng Chen T1 - CO2 seasonal variation and global change: Test global warming from another point of view Y1 - 2017-02-01 JF - Sciences in Cold and Arid Regions JO - Sciences in Cold and Arid Regions SP - 46 EP - 53 VL - 9 IS - 1 UR - http://www.scar.ac.cn N1 - 10.3724/SP.J.1226.2017.00046 ER -