[1] China Univ Min & Technol, Sch Resources & Geosci, Xuzhou, Peoples R China
[2] China Univ Min & Technol, Sch Environm & Spatial Informat, Xuzhou, Peoples R China
[3] China Univ Min & Technol, Key Lab Coal Bed Gas Resources & Forming Proc, Minist Educ, Xuzhou, Peoples R China
[4] China Univ Min & Technol, Jiangsu Key Lab Coal Based Greenhouse Gas Control, Xuzhou, Peoples R China
[5] Santa Clara Univ, Dept Civil Environm & Sustainable Engn, Santa Clara, CA USA