Grazing intensity influence soil microbial communities and their implications for soil respiration
Zhao, Fazhu1,2; Ren, Chengjie3; Shelton, Shelby4; Wang, Ziting3; Pang, Guowei1,2; Chen, Ji5,6,7,8; Wang, Jun1,2
2017-11-01
发表期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
卷号249期号:2017页码:50-56
文章类型Article
摘要Soil microorganisms regulate carbon (C) transfer from terrestrial sources to the atmosphere, therefore playing a pivotal role in soil C dynamics. Worldwide, grazing is one of the most prevalent grassland management strategies, yet the effects of grazing on soil microbial community size and soil respiration (SR) are still active areas of debate. We conducted a meta-analysis of 71 publications to synthesize the responses of soil microbial community size and SR to grazing. Our results showed that grazing significantly decreased soil total microbial, bacterial and fungal community size by 11.74, 8.85 and 11.45%, respectively. However, this effect were differed when the studies were grouped by the grazing intensity. Briefly, light and moderate grazing intensity had no effect on soil microbial, bacterial and fungal community size, but heavy grazing intensity significantly reduced soil's total microbial, bacterial and fungal community size by 14.79, 16.48 and 28.12%, respectively. The responses of microbial community size to grazing were positively correlated with those of SR both under moderate and heavy grazing intensity. Our findings indicate that soil microbial community size could be an important underlying mechanism involved in determining soil C dynamics under grazing. Hence better understanding of the responses of soil microbial community size would greatly contribute to our understanding of soil C dynamics. Lastly, our results underscore the importance of factoring grazing intensity into consideration to further improve the model's projection of soil C dynamics.
关键词Grazing Intensity Soil Respiration Soil Microbial Community Size Grassland Meta-analysis
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.agee.2017.08.007
关键词[WOS]LAND-USE TYPES ; TEMPERATE GRASSLAND ; TIBETAN PLATEAU ; INNER-MONGOLIA ; NORTHERN CHINA ; HETEROTROPHIC RESPIRATION ; ECOSYSTEM RESPIRATION ; MEADOW GRASSLAND ; CARBON DYNAMICS ; NITROUS-OXIDE
收录类别SCI
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:000412256000007
引用统计
被引频次:83[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5417
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.Northwest Univ Xian, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China
2.Northwest Univ Xian, Coll Urban & Environm Sci, Xian 710127, Shaanxi, Peoples R China
3.Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China
4.George Washington Univ, Milken Inst Publ Hlth, Washington, DC 20052 USA
5.Northwestern Polytech Univ, Key Lab Space Biosci & Biotechnol, Ctr Ecol & Environm Sci, Xian 710072, Shaanxi, Peoples R China
6.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
7.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhao, Fazhu,Ren, Chengjie,Shelton, Shelby,et al. Grazing intensity influence soil microbial communities and their implications for soil respiration[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2017,249(2017):50-56.
APA Zhao, Fazhu.,Ren, Chengjie.,Shelton, Shelby.,Wang, Ziting.,Pang, Guowei.,...&Wang, Jun.(2017).Grazing intensity influence soil microbial communities and their implications for soil respiration.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,249(2017),50-56.
MLA Zhao, Fazhu,et al."Grazing intensity influence soil microbial communities and their implications for soil respiration".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 249.2017(2017):50-56.
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