TY - T1 - Comparison between eddy covariance and automatic chamber techniques for measuring net ecosystem exchange of carbon dioxide in cotton and wheat fields SN - / UR - http://hdl.handle.net/10138/162377 T3 - A1 - Wang, K.; Liu, C.; Zheng, X.; Pihlatie, M.; Li, B.; Haapanala, S.; Vesala, T.; Liu, H.; Wang, Y.; Liu, G.; Hu, F. A2 - PB - Y1 - 2013 LA - eng AB - ... VO - IS - SP - OP - KW - LONG-TERM MEASUREMENTS; SOIL RESPIRATION; GAS-EXCHANGE; CO2 FLUX; NORTHERN CHINA; NITROUS-OXIDE; BLANKET BOG; ATMOSPHERE; SYSTEMS; WATER; 114 Physical sciences N1 - PP - ER -