Microbial metabolism of complex organic components can drive different microbial communities, which is significant to the process of dry anaerobic digestion (AD). However, possible mechanisms between organic components and the corresponding microbial communities during the process of dry AD is poorly investigated. Results showed that the microbial species affecting the degradation of organic components were 69 nodes (13.3%) in the hydrolysis stage, hemicellulose was mainly degraded by Methanobacterium (2.3%), with a degradation rate of 35.0%. In the acetogenesis stage, the microbial species were 27 nodes (10.3%), hemicellulose was mainly degraded by LK-44f (0.1%) and Treponema (0.3%), with a degradation rate of 52.2%. In the methanogenesis stage, the microbial species were 10 nodes (4.8%), polysaccharide was mainly degraded by Ureibacillus (0.1%), with a degradation rate of 46.9%. The study provides theoretical support for the rapid degradation of complex components by segment-oriented regulation.

复杂有机成分的微生物代谢可以驱动不同的微生物群落，这对于干式厌氧消化（AD）过程至关重要。但是，干AD过程中有机成分和相应的微生物群落之间可能的机制研究很少。结果表明，在水解过程中，影响有机成分降解的微生物种类为69个节点（13.3％），半纤维素主要被甲烷杆菌降解（2.3％），降解率为35.0％。在产乙酸阶段，微生物种类为27个节点（10.3％），半纤维素主要被LK-44f（0.1％）和梅毒螺旋体降解。（0.3％），降解率为52.2％。在产甲烷阶段，微生物种类为10个节点（4.8％），多糖主要被尿杆菌（0.1％）降解，降解率为46.9％。该研究为通过段导向的调节快速降解复杂的组分提供了理论支持。