Research of tillage-cropping systems on CH4 and N2O emission from permanently flooded rice fields in a central Sichuan hilly area of southwest China
SUN Yuanyuan, SUN Yongjian, WANG Ruiting, FENG Jiandong, LI Chunlu, MA Jun, LI Shoucheng
Ecology and Environment . 2011, (7): 1003 -1010 .  DOI: 10.16258/j.cnki.1674-5906(2011)06-07-1003-08