A Meta-analysis of the Effects of Warming and Elevated CO_2 on Soil Microbes

	A Meta-analysis of the Effects of Warming and Elevated CO_2 on Soil Microbes
	Fu Gang; Zhang Haorui; Li Shaowei; Sun Wei
刊名	Journal of Resources and Ecology
	2019
卷号	10 期号:1 页码:69
关键词	生态系统类型 CO_2浓度增加增温响应比增温方法
ISSN号	1674-764X
英文摘要	Soil microbes play important roles in terrestrial ecosystem carbon and nitrogen cycling. Climatic warming and elevated CO_2 are two aspects of climatic change. In this study, we used a meta-analysis approach to synthesise observations related to the effects of warming and elevated CO_2 on soil microbial biomass and community structure. Ecosystem types were mainly grouped into forests and grasslands. Warming methods included open top chambers and infrared radiators. Experimental settings included all-day warming, daytime warming and nighttime warming. Warming increased soil actinomycetes and saprotrophic fungi, while elevated CO_2 decreased soil gram-positive bacteria (G~+). Mean annual temperature and mean annual precipitation were negatively correlated with warming effects on gram-negative bacteria (G~-) and total phospholipid fatty acid (PLFA), respectively. Elevation was positively correlated with the warming effect on total PLFA, bacteria, G~+ and G~-. Grassland exhibited a positive response of total PLFA and actinomycetes to warming, while forest exhibited a positive response in the ratio of soil fungi to bacteria (F/B ratio) to warming. The open top chamber method increased G~-, while the infrared radiator method decreased the F/B ratio. Daytime warming rather than all-day warming increased G~-. Our findings indicated that the effects of warming on soil microbes differed with ecosystem types, warming methods, warming times, elevation and local climate conditions.
语种	英语
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/154875]
专题	中国科学院地理科学与资源研究所
作者单位	中国科学院地理科学与资源研究所
推荐引用方式 GB/T 7714	Fu Gang,Zhang Haorui,Li Shaowei,et al. A Meta-analysis of the Effects of Warming and Elevated CO_2 on Soil Microbes[J]. Journal of Resources and Ecology,2019,10(1):69.
APA	Fu Gang,Zhang Haorui,Li Shaowei,&Sun Wei.(2019).A Meta-analysis of the Effects of Warming and Elevated CO_2 on Soil Microbes.Journal of Resources and Ecology,10(1),69.
MLA	Fu Gang,et al."A Meta-analysis of the Effects of Warming and Elevated CO_2 on Soil Microbes".Journal of Resources and Ecology 10.1(2019):69.