气候变化领域集成服务门户(CCPortal): Response of soil bacterial communities to moisture and grazing in the Tibetan alpine steppes on a small spatial scale

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DOI	10.1080/01490451.2019.1583697
	Response of soil bacterial communities to moisture and grazing in the Tibetan alpine steppes on a small spatial scale
	Zhao, Qingzhou; Niu, Haishan; Wang, Yanfen; Cui, Xiaoyong; Li, Yaoming; Yu, Zhisheng
通讯作者	Niu, HS ; Yu, ZS (通讯作者)
发表日期	2019
ISSN	0149-0451
EISSN	1521-0529
起始页码	559
结束页码	569
卷号	36 期号:6
英文摘要	As the Third Pole of the world, the Tibetan Plateau provides a typical alpine grassland environment for soil bacteria with its unique frigid and arid climate. Owing to clear changes in spatial moisture and increased grazing intensity, moisture and livestock grazing have become key factors influencing the microbial communities. Accordingly, we investigated the diversity and composition of soil bacteria in a selected alpine grassland within the dual gradients of moisture and grazing using high-throughput sequencing. Our results showed that grazing changed the soil bacterial diversity and composition, whereas moisture only influenced the relative abundance of the segmental community at the small spatial scale. Species richness was found to be increased by moderate grazing compared with that by high or low-grazing intensity. The relative abundance of dominant species and beta-diversity of soil bacteria both showed differences with heavy, moderate, and low grazing. Some dominant bacteria were altered with the moisture content. However, there were no significant differences according to the moisture gradient in terms of the overall bacterial beta diversity and composition. These results might be taken account into the small spatial scale as well as the compensation of grazing to moisture on this scale. This work provides new insights into the soil bacterial response to moisture gradients and grazing intensity in alpine steppe habitat.
关键词	MICROBIAL COMMUNITY GRASSLAND SOILS MICROBIOLOGICAL PROPERTIES PLANT DIVERSITY MANAGEMENT GRADIENT FOREST PRECIPITATION PERMAFROST
英文关键词	Alpine grassland; bacterial diversity; livestock grazing; soil moisture
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS记录号	WOS:000465770100001
来源期刊	GEOMICROBIOLOGY JOURNAL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259417
推荐引用方式 GB/T 7714	Zhao, Qingzhou,Niu, Haishan,Wang, Yanfen,et al. Response of soil bacterial communities to moisture and grazing in the Tibetan alpine steppes on a small spatial scale[J]. 中国科学院青藏高原研究所,2019,36(6).
APA	Zhao, Qingzhou,Niu, Haishan,Wang, Yanfen,Cui, Xiaoyong,Li, Yaoming,&Yu, Zhisheng.(2019).Response of soil bacterial communities to moisture and grazing in the Tibetan alpine steppes on a small spatial scale.GEOMICROBIOLOGY JOURNAL,36(6).
MLA	Zhao, Qingzhou,et al."Response of soil bacterial communities to moisture and grazing in the Tibetan alpine steppes on a small spatial scale".GEOMICROBIOLOGY JOURNAL 36.6(2019).