CCPortal
DOI10.1002/ldr.3626
Fencing decreases microbial diversity but increases abundance in grassland soils on the Tibetan Plateau
Fan, Dandan; Kong, Weidong; Wang, Fei; Yue, Linyan; Li, Xiangzhen
通讯作者Kong, WD (通讯作者)
发表日期2020
ISSN1085-3278
EISSN1099-145X
起始页码2577
结束页码2590
卷号31期号:17
英文摘要Fencing usually increases soil organic carbon and nutrients and eventually enhances soil microbial diversity; however with different or even conflicting results, the mechanisms underlying the diversity reduction remain unclear. Aiming to reveal the mechanism of diversity reduction, we explored the soil microbial diversity and community structure in fenced areas (5-and 10-years enclosure) and grazing during a growing season in arid and semiarid steppe, using Illumina sequencing of 16S and 18S rRNA genes. The results revealed that fencing and season both substantially increased soil total organic carbon (TOC), while the enhancing TOC substantially reduced soil pH. Fencing significantly increased soil bacterial and eukaryotic abundance due to the enhancing TOC, which was indicated by positive correlation (p < .05). Contrastingly, fencing significantly decreased soil bacterial and eukaryotic diversity. Our results further revealed that fencing- and season-driven change in soil water content and soil pH played key roles in reducing the bacterial and eukaryotic diversity, respectively. Distance-based linear model demonstrated that fencing dominantly drove the soil bacterial and eukaryotic community variations by explaining 15.64 and 24.88%, respectively, and redundancy analysis showed that the fencing effect was dependent on growing months. Bacteria were dominated by Cyanobacteria and Proteobacteria, and eukaryotes were dominated by Streptophyta, Ascomycota and Basidiomycota. Cyanobacteria relative abundance remained stable from May to September in fencing but substantially increased in grazing. Our findings offer a new insight into the mechanism of the soil microbial diversity reduction, and reveal the season-dependency of fencing effect in arid and semiarid grasslands.
关键词TERM GRAZING EXCLUSIONBACTERIAL COMMUNITY STRUCTURERNA GENE DATABASECARBON SEQUESTRATIONFUNGAL COMMUNITYINNER-MONGOLIACLIMATE-CHANGEPLANT DIVERSITYDESERT STEPPEPH
英文关键词arid and semiarid; fencing; grassland; soil microbial diversity; Tibetan Plateau
语种英语
WOS研究方向Environmental Sciences & Ecology ; Agriculture
WOS类目Environmental Sciences ; Soil Science
WOS记录号WOS:000536480700001
来源期刊LAND DEGRADATION & DEVELOPMENT
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/259864
推荐引用方式
GB/T 7714
Fan, Dandan,Kong, Weidong,Wang, Fei,et al. Fencing decreases microbial diversity but increases abundance in grassland soils on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2020,31(17).
APA Fan, Dandan,Kong, Weidong,Wang, Fei,Yue, Linyan,&Li, Xiangzhen.(2020).Fencing decreases microbial diversity but increases abundance in grassland soils on the Tibetan Plateau.LAND DEGRADATION & DEVELOPMENT,31(17).
MLA Fan, Dandan,et al."Fencing decreases microbial diversity but increases abundance in grassland soils on the Tibetan Plateau".LAND DEGRADATION & DEVELOPMENT 31.17(2020).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Fan, Dandan]的文章
[Kong, Weidong]的文章
[Wang, Fei]的文章
百度学术
百度学术中相似的文章
[Fan, Dandan]的文章
[Kong, Weidong]的文章
[Wang, Fei]的文章
必应学术
必应学术中相似的文章
[Fan, Dandan]的文章
[Kong, Weidong]的文章
[Wang, Fei]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。