不同煤阶生物成因煤层气微生物群落的功能及多样性研究进展

Function and diversity of microbial community in biogenic coal-bed methane with different coal ranks: a review

摘要:

生物成因煤层气是煤层气形成的主要途径之一，在各种煤阶的煤层气田中均发现有生物成因煤层气。高通量测序技术、宏基因组学等高新技术的应用逐步揭示了生物成因煤层气微生物群落的组成及多样性，为揭示煤层气资源的微生物生成机理提供了理论依据。本文综述了近年来国内外针对不同煤阶条件下微生物群落结构及多样性方面的研究进展，总结了煤层气生物成因过程中主要微生物的功能及产气途径，并探讨了生物成因煤层气领域的研究前景。

关键词:生物成因煤层气，煤阶，微生物功能，微生物多样性

Abstract:

Biogenic coal-bed methane (CBM), a kind of unconventional gas resources, has been observed in different coal-rank basins. The composition and the diversity of microbial community involved in biogenic CBM have been investigated by metagenomics and high-throughput sequencing. It is fundamental for unravelling the mechanism of biogenic CBM. This review focuses on recent advances in microbial diversity, metabolic pathway, and the function of microbial community in biogenic CBM production. The associations between coal ranks and microbial diversity are further discussed and analyzed.

Key words:Biogenic coal-bed methane, Coal rank, Microbial function, Microbial diversity