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DOI	10.1016/j.agee.2016.02.020
	Changes of soil microbial community under different degraded gradients of alpine meadow
	Li, Yaoming; Wang, Shiping; Jiang, Lili; Zhang, Lirong; Cui, Shujuan; Meng, Fandong; Wang, Qi; Li, Xine; Zhou, Yang
通讯作者	Li, YM ; Wang, SP (通讯作者)
发表日期	2016
ISSN	0167-8809
EISSN	1873-2305
起始页码	213
结束页码	222
卷号	222
英文摘要	Changes in soil bacterial and fungal composition and their diversity with degradation degrees (i.e. non degraded (ND), moderately degraded (MD) and severely degraded (SD) meadows) were investigated in a Tibetan alpine meadow using the Illumina MiSeq. Proteobacteria,Actinobacteria, and Acidobacteria were predominant bacteria in the studied meadow soils, regardless of degradation. ND and MD exhibited no significant differences in bacterial species composition and diversity, while SD significantly altered bacterial composition and increased their diversity compared with ND and MD. Sordariomycetes was predominant fungal class in ND, however, a shift in the fungal class from it to Dothideomycetes was found with increasing degradation level. Moreover, SD apparently increased the relative abundance of pathogenic fungi compared with ND. Degradation significantly shifted fungal species composition and increased their diversity. Soil nutrient conditions could explain 33.8 and 35.6% of the variance in bacterial and fungal composition, respectively. In addition, 25.3 and 21.7% of the variance in bacterial and fungal composition, respectively, were explained by plant properties. However, neither bacterial nor fungal diversity paralleled plant diversity with degradation. Soil silt to sand ratio was the best predictor of shifts in bacterial a -diversity with degradation degrees (R-2> 0.46), while fungal a -diversity was most closely associated with changes in soil available potassium (R-2>0.66). Together, these results suggest that changes of microbial diversity and plant diversity was decoupled under degradation process, and degradation could increase the potential risk of plant diseases and decrease health of the alpine ecosystem. (C) 2016 Elsevier B.V. All rights reserved.
关键词	QINGHAI-TIBETAN PLATEAU BACTERIAL COMMUNITIES FUNGAL COMMUNITIES DIVERSITY GRASSLAND FOREST HETEROGENEITY DEGRADATION RESILIENCE RESISTANCE
英文关键词	Tibetan Plateau; Alpine meadow degradation; Bacteria; Fungi; Composition; Diversity
语种	英语
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS记录号	WOS:000384383600022
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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/258634
推荐引用方式 GB/T 7714	Li, Yaoming,Wang, Shiping,Jiang, Lili,et al. Changes of soil microbial community under different degraded gradients of alpine meadow[J]. 中国科学院青藏高原研究所,2016,222.
APA	Li, Yaoming.,Wang, Shiping.,Jiang, Lili.,Zhang, Lirong.,Cui, Shujuan.,...&Zhou, Yang.(2016).Changes of soil microbial community under different degraded gradients of alpine meadow.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,222.
MLA	Li, Yaoming,et al."Changes of soil microbial community under different degraded gradients of alpine meadow".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 222(2016).