摘要
Altogether 6.45 billion cubic meters of gaswere extracted in the 19 coal-producingprovinces (regions, municipalities) inChina in 2009, of which 1.93 billion cubicmeters were utilized.Those are up 21.7%and 20.6% from 2008 respectively.In2009, the ground coalbed methane (CBM)production rose 102% to 1.01 billion cubicmeters.The CBM amounts used rose57% to 580 million cubic meters, the Na-