Heavy rainfall accelerates the temporal turnover but decreases the deterministic processes of buried gravesoil bacterial communities

NWIPB OpenIR

	Heavy rainfall accelerates the temporal turnover but decreases the deterministic processes of buried gravesoil bacterial communities
	Su, WH; Han, Q; Yang, JW; Yu, QL; Wang, SJ; Wang, XC; Qu, JP; Li, H
	2022
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
卷号	836
摘要	The influences of global climatic change require an understanding of changes in soil microbial communities under precipitation. However, little is known about how soil ("gravesoil") microbial communities associated with corpse decay respond to precipitation. Here, we explored the variations of temporal turnover and assembly in gravesoil bacterial communities in the Qinghai-Tibet Plateau ecosystem via controlled rainfall simulation experiments. In our experiments, rainfall intensity was set to 2.5 and 5 mm/3 days to simulate moderate and heavy rainfall, respectively, and sampling was conducted on the 4th, 11th, 18th, 32nd, 46th and 60th day. Our results showed precipitation signifi-cantly altered bacterial abundances and community structures. Analysis of time-decay relationships revealed that precipitation resulted in a divergent succession of gravesoil bacterial community structure and abundance changes of dominant phyla, such as Chloroflexi. Moreover, in the experimental groups, our results suggested that moderate rainfall increased the deterministic processes in the initial and mid periods, whereas heavy rainfall decreased these processes of gravesoil microbial community assembly in every period compared with those in the control group. The dispersal capacity induced by stochastic processes of gravesoil microbial communities decreased over time under moderate rainfall, whereas it initially increased and then decreased under heavy rainfall. This study highlights the influence of heavy rainfall on bacterial communities during corpse decay, which can provide some inferences for predicting changes in soil microbial communities under global climatic change.
收录类别	SCIE
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/61131
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Su, WH,Han, Q,Yang, JW,et al. Heavy rainfall accelerates the temporal turnover but decreases the deterministic processes of buried gravesoil bacterial communities[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,836.
APA	Su, WH.,Han, Q.,Yang, JW.,Yu, QL.,Wang, SJ.,...&Li, H.(2022).Heavy rainfall accelerates the temporal turnover but decreases the deterministic processes of buried gravesoil bacterial communities.SCIENCE OF THE TOTAL ENVIRONMENT,836.
MLA	Su, WH,et al."Heavy rainfall accelerates the temporal turnover but decreases the deterministic processes of buried gravesoil bacterial communities".SCIENCE OF THE TOTAL ENVIRONMENT 836(2022).