气候变化领域集成服务门户(CCPortal): Grazing intensity alters soil microbial diversity and network complexity in alpine meadow on the Qinghai-Tibet Plateau

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DOI	10.1016/j.agee.2023.108541
	Grazing intensity alters soil microbial diversity and network complexity in alpine meadow on the Qinghai-Tibet Plateau
	Jing, Luhuai; Mipam, Tserang Donko; Ai, Yi; Jiang, Ao; Gan, Tian; Zhang, Sihu; Liu, Jianquan; Tian, Liming
发表日期	2023
ISSN	0167-8809
EISSN	1873-2305
卷号	353
英文摘要	Livestock grazing can alter biodiversity and ecosystem functions. However, how long-term and continuous grazing intensity affect belowground biodiversity remains unclear, especially for soil microbial diversity. Here, through a well-controlled 5-year field experiment in a Tibetan alpine meadow, the responses of soil bacterial and fungal communities to yak grazing intensity were examined. Our results showed that grazing intensity signifi-cantly changed soil bacterial and fungal community compositions, rather than microbial alpha-diversity. The co-occurrence network analysis indicated that both soil bacterial and fungal network complexity gradually decreased with increasing grazing intensities. Meanwhile, soil C/N ratio, soil moisture, dissolved organic ni-trogen (DON), NH4+-N, and aboveground biomass (AGB) were related to soil bacterial community, and AGB, NO3-- N, NH4+-N, and DON and were associated with soil fungal community. Taken together, our manipulative experiment provides empirical evidence that grazing intensity-induced alterations of aboveground vegetation and nitrogen availability primarily trigger the shift of soil microbial community and structure. These results can support grassland management and ecological restoration in alpine ecosystems.
关键词	Grazing intensity Microbial diversity Network complexity Microbial community Alpine meadow
英文关键词	CLIMATE-CHANGE; BIODIVERSITY; COMMUNITY; GRASSLAND; IMPACTS; STEPPE
WOS研究方向	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS记录号	WOS:001006472200001
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283479
作者单位	Sichuan University; Southwest Minzu University; Lanzhou University
推荐引用方式 GB/T 7714	Jing, Luhuai,Mipam, Tserang Donko,Ai, Yi,et al. Grazing intensity alters soil microbial diversity and network complexity in alpine meadow on the Qinghai-Tibet Plateau[J],2023,353.
APA	Jing, Luhuai.,Mipam, Tserang Donko.,Ai, Yi.,Jiang, Ao.,Gan, Tian.,...&Tian, Liming.(2023).Grazing intensity alters soil microbial diversity and network complexity in alpine meadow on the Qinghai-Tibet Plateau.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,353.
MLA	Jing, Luhuai,et al."Grazing intensity alters soil microbial diversity and network complexity in alpine meadow on the Qinghai-Tibet Plateau".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 353(2023).