气候变化领域集成服务门户(CCPortal): Evaluating the lingering effect of livestock grazing on functional potentials of microbial communities in Tibetan grassland soils

CCPortal

DOI	10.1007/s11104-016-2897-y
	Evaluating the lingering effect of livestock grazing on functional potentials of microbial communities in Tibetan grassland soils
	Wang, Mengmeng; Wang, Shiping; Wu, Linwei; Xu, Depeng; Lin, Qiaoyan; Hu, Yigang; Li, Xiangzhen; Zhou, Jizhong; Yang, Yunfeng
通讯作者	Yang, YF (通讯作者)
发表日期	2016
ISSN	0032-079X
EISSN	1573-5036
起始页码	385
结束页码	399
卷号	407 期号:1-2
英文摘要	Livestock grazing is a widely practiced land-use regime that can impose lingering effects on global biogeochemical cycles. However, elucidating the mechanisms of related eco-processes, which are largely mediated by the microbial community, remains challenging. Here, we collected soil samples from two Tibetan grassland sites subjected to grazing in winter followed by a 3-month recovery. We then evaluated functional potentials of microbial communities via a metagenomic tool known as GeoChip 4.0. Significant alterations were detected in post-grazing grassland soils, and further analysis showed that plant diversity was the best indicator of alterations in functional potentials. Relative abundances of labile C degradation genes decreased at the 3400-m site, but those of recalcitrant C degradation genes increased, which could be explained by the higher soil recalcitrant C input owing to their being substantially more forbs species at this site. Nitrification genes decreased at both sites, probably owing to increased soil moisture conducive to oxygen-limiting conditions. Relative abundance of denitrification genes increased at the 3200-m site, concomitant with increased N2O emissions. These results demonstrated that functional gene compositions of the microbial community were altered in post-grazing grassland soils, and linked to soil biogeochemical processes.
关键词	ALPINE MEADOW BIOTIC HOMOGENIZATION BACTERIAL COMMUNITIES TRAMETES-VERSICOLOR INNER-MONGOLIA CLIMATE-CHANGE NITROUS-OXIDE NEW-ZEALAND CARBON DIVERSITY
英文关键词	Microbial functional potential; Tibetan grassland; Post-winter grazing; GeoChip
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:000385205100028
来源期刊	PLANT AND SOIL
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/258848
推荐引用方式 GB/T 7714	Wang, Mengmeng,Wang, Shiping,Wu, Linwei,et al. Evaluating the lingering effect of livestock grazing on functional potentials of microbial communities in Tibetan grassland soils[J]. 中国科学院青藏高原研究所,2016,407(1-2).
APA	Wang, Mengmeng.,Wang, Shiping.,Wu, Linwei.,Xu, Depeng.,Lin, Qiaoyan.,...&Yang, Yunfeng.(2016).Evaluating the lingering effect of livestock grazing on functional potentials of microbial communities in Tibetan grassland soils.PLANT AND SOIL,407(1-2).
MLA	Wang, Mengmeng,et al."Evaluating the lingering effect of livestock grazing on functional potentials of microbial communities in Tibetan grassland soils".PLANT AND SOIL 407.1-2(2016).