TY - Sciences in Cold and Arid Regions A1 - HaiBo Wang, MingGuo Ma T1 - Comparing the seasonal variation of parameter estimation of ecosystem carbon exchange between alpine meadow and cropland in Heihe River Basin, northwestern China Y1 - 2015-06-01 JF - Sciences in Cold and Arid Regions JO - Sciences in Cold and Arid Regions SP - 216 EP - 228 VL - 7 IS - 3 UR - http://www.scar.ac.cn N1 - 10.3724/SP.J.1226.2015.00216 ER -