Fu Gang; Zhang Haorui; Li Shaowei; Sun Wei
Source Publicationjournalofresourcesandecology
AbstractSoil 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.
Document Type期刊论文
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Fu Gang,Zhang Haorui,Li Shaowei,et al. ametaanalysisoftheeffectsofwarmingandelevatedco2onsoilmicrobes[J]. journalofresourcesandecology,2019,10(1):69.
APA Fu Gang,Zhang Haorui,Li Shaowei,&Sun Wei.(2019).ametaanalysisoftheeffectsofwarmingandelevatedco2onsoilmicrobes.journalofresourcesandecology,10(1),69.
MLA Fu Gang,et al."ametaanalysisoftheeffectsofwarmingandelevatedco2onsoilmicrobes".journalofresourcesandecology 10.1(2019):69.
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