Experimental warming reveals positive feedbacks to climate change in the Eurasian Steppe
文献类型：期刊论文
| 作者 | Zhang, Ximei; Johnston, Eric R.; Li, Linghao3 ; Konstantinidis, Konstantinos T.; Han, Xingguo2,3
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| 刊名 | ISME JOURNAL
 |
| 出版日期 | 2017 |
| 卷号 | 11期号:4页码:885-895 |
| ISSN号 | 1751-7362 |
| DOI | 10.1016/j.isprsjprs.2017.06.006 |
| 文献子类 | Article |
| 英文摘要 | Identifying soil microbial feedbacks to increasing temperatures and moisture alterations is critical for predicting how terrestrial ecosystems will respond to climate change. We performed a 5-year field experiment manipulating warming, watering and their combination in a semiarid temperate steppe in northern China. Warming stimulated the abundance of genes responsible for degrading recalcitrant soil organic matter (SOM) and reduced SOM content by 13%. Watering, and warming plus watering also increased the abundance of recalcitrant SOM catabolism pathways, but concurrently promoted plant growth and increased labile SOM content, which somewhat offset SOM loss. The treatments also increased microbial biomass, community complexity and metabolic potential for nitrogen and sulfur assimilation. Both microbial and plant community composition shifted with the treatment conditions, and the sample-to-sample compositional variations of the two communities (pairwise a-diversity distances) were significantly correlated. In particular, microbial community composition was substantially correlated with the dominant plant species (similar to 0.54 Spearman correlation coefficient), much more than with measured soil indices, affirming a tight coupling between both biological communities. Collectively, our study revealed the direction and underlying mechanisms of microbial feedbacks to warming and suggested that semiarid regions of northern steppes could act as a net carbon source under increased temperatures, unless precipitation increases concurrently. |
| 学科主题 | Physical Geography ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 出版地 | LONDON |
| 电子版国际标准刊号 | 1751-7370 |
| WOS关键词 | RNA GENE DATABASE ; INCREASED PRECIPITATION ; COMMUNITY STRUCTURE ; SOIL ; DIVERSITY ; RESPONSES ; RESPIRATION ; DYNAMICS ; RATES ; WATER |
| 语种 | 英语 |
| WOS记录号 | WOS:000408077200021 |
| 出版者 | SPRINGERNATURE |
| 资助机构 | Strategic Priority Research Program of CAS of China [XDB15010404] ; US Department of EnergyUnited States Department of Energy (DOE) [DE-SC0004601] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22247]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxin Cun, Beijing 100093, Peoples R China 3.Johnston, Eric R.; Konstantinidis, Konstantinos T.] Georgia Inst Technol, Sch Civil & Environm Engn, 311 Ferst Dr,Room 3224, Atlanta, GA 30332 USA 4.Zhang, Ximei; Konstantinidis, Konstantinos T.] Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA 5.Chinese Acad Agr Sci, Key Lab Dryland Agr, Inst Environm & Sustainable Dev Agr, MOA, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ximei,Johnston, Eric R.,Li, Linghao,et al. Experimental warming reveals positive feedbacks to climate change in the Eurasian Steppe[J]. ISME JOURNAL,2017,11(4):885-895. |
| APA | Zhang, Ximei,Johnston, Eric R.,Li, Linghao,Konstantinidis, Konstantinos T.,&Han, Xingguo.(2017).Experimental warming reveals positive feedbacks to climate change in the Eurasian Steppe.ISME JOURNAL,11(4),885-895. |
| MLA | Zhang, Ximei,et al."Experimental warming reveals positive feedbacks to climate change in the Eurasian Steppe".ISME JOURNAL 11.4(2017):885-895. |
入库方式： OAI收割
来源：植物研究所
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