| 王文立,孔维栋,曾辉.土壤微生物对增温响应的Meta分析[J].农业环境科学学报,2015,34(11):2169-2175. |
| 土壤微生物对增温响应的Meta分析 |
| A Meta-analysis of Responses of Soil Microbes to Warming |
| 投稿时间：2015-04-27 |
| DOI：10.11654/jaes.2015.11.019 |
| 中文关键词: 增温 微生物 土壤 Meta分析 |
| 英文关键词: warming microbe soil Meta-analysis |
| 基金项目: |
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| 摘要点击次数: 2833 |
| 全文下载次数: 2970 |
| 中文摘要: |
| 通过对35例2009-2015年初发表的增温控制试验的96组数据进行Meta分析,研究了土壤微生物对增温的响应模式,结果表明:增温提高了土壤微生物碳(1.4%)、土壤微生物氮(1.7%)和土壤真菌量(3.7%),降低了土壤细菌量(-1.9%);土壤微生物碳的增温响应与试验地年平均降水量和增温幅度显著相关;土壤微生物氮的变化受试验地年均温、年均降水量及增温幅度的影响. |
| 英文摘要: |
| We meta-analyzed 96 datasets generated in 35 manipulated experiments published in the past 6 years(2009 to early 2015) and discussed the patterns of responses of soil microbes to warming. Four continuous variables from each study were chosen:mean annual temperature and mean annual precipitation of study site, and magnitude and duration of warming. Additionally, we also chose ecosystem types as categorical variable. We used the natural log of the response ratio as a metric of effect size. Warming by average 2 ℃ increased soil microbial biomass carbon by 1.4%, microbial biomass nitrogen by 1.7%, and fungal biomass by 3.7%, but decreased bacterial biomass by 1.9%. The warming-induced changes of soil microbial biomass carbon were significantly correlated with mean annual precipitation and warming magnitudes, while those of soil microbial biomass nitrogen were significantly correlated with mean annual precipitation, warming magnitudes and mean annual temperature. |
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