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Burial conditions play a crucial role in archaeological heritage preservation. Especially, the microorganisms were considered as the leading causes which incurred degradation and vanishment of historic materials. In this article, we analyzed bacterial diversity and community structure from M1 of Wangshanqiao using 16 S rRNA gene amplicon sequencing. The results indicated that microbial communities in burial conditions were diverse among four different samples. The samples from the robber hole varied most obviously in community structure both in Alpha and Beta diversity. In addition, the dominant phylum in different samples were  Proteobacteria, Actinobacteria  and  Bacteroidetes , respectively. Moreover, the study implied that historical materials preservation conditions had connections with bacterial community distribution. At the genus level,  Acinetobacter  might possess high ability in degrading organic culture heritage in burial conditions, while  Bacteroides  were associated closely with favorable preservation conditions. This method contributes to fetch information which would never recover after excavation, and it will help to explore microbial degradation on precious organic culture heritage and further our understanding of archaeological burial environment. The study also indicates that robbery has a serious negative impact on burial remains.

scientific reports

A new perspective on studying burial environment before archaeological excavation: analyzing bacterial community distribution by high-throughput sequencing