环境保护部公益项目No.201009001;北京市组织部优秀人才培养资助No.2014000020124G119;2015年首都经济贸易大学中青年教师科研提升基金 Supported by the Special Funds from the Ministry of Environmental Protection on Public WelfaresNo.201009001,the Foundation for Young Talents from Beijing Municipal Government No.2014000020124G119 and the Scientific Research Promotion Funds from Capital University of Economics and Business 2015