Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14936 |
Potential feedback mediated by soil microbiome response to warming in a glacier forefield | |
Wang, Yuwan1,2,3,4; Ma, Anzhou1,5; Liu, Guohua1,5; Ma, Jianpeng1,5; Wei, Jing1,5; Zhou, Hanchang1,5; Brandt, Kristian Koefoed2,4; Zhuang, Guoqiang1,5 | |
2019-12-28 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China; Denmark |
英文摘要 | Mountain glaciers are retreating at an unprecedented rate due to global warming. Glacier retreat is widely believed to be driven by the physiochemical characteristics of glacier surfaces; however, the current knowledge of such biological drivers remains limited. An estimated 130 Tg of organic carbon (OC) is stored in mountain glaciers globally. As a result of global warming, the accelerated microbial decomposition of OC may further accelerate the melting process of mountain glaciers by heat production with the release of greenhouse gases, such as carbon dioxide (CO2) and methane. Here, using short-term aerobic incubation data from the forefield of Urumqi Glacier No. 1, we assessed the potential climate feedback mediated by soil microbiomes at temperatures of 5 degrees C (control), 6.2 degrees C (RCP 2.6), 11 degrees C (RCP 8.5), and 15 degrees C (extreme temperature). We observed enhanced CO2-C release and heat production under warming conditions, which led to an increase in near-surface (2 m) atmospheric temperatures, ranging from 0.9 degrees C to 3.4 degrees C. Warming significantly changed the structures of the RNA-derived (active) and DNA-derived (total) soil microbiomes, and active microbes were more sensitive to increased temperatures than total microbes. Considering the positive effects of temperature and deglaciation age on the CO2-C release rate, the alterations in the active microbial community structure had a negative impact on the increased CO2-C release rate. Our results revealed that glacial melting could potentially be significantly accelerated by heat production from increased microbial decomposition of OC. This risk might be true for other high-altitude glaciers under emerging warming, thus improving the predictions of the effects of potential feedback on global warming. |
英文关键词 | CO2-C release feedback glacier forefield global warming heat production soil microbiome |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504592600001 |
WOS关键词 | DAMMA GLACIER ; NO. 1 ; COMMUNITY STRUCTURE ; PERMAFROST CARBON ; ORGANIC-CARBON ; CLIMATE-CHANGE ; BACTERIAL ; CHRONOSEQUENCE ; RESPIRATION ; FLUXES |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225336 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; 2.Univ Copenhagen, Dept Plant & Environm Sci, Fac Sci, Frederiksberg, Denmark; 3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing, Peoples R China; 4.Sino Danish Ctr Educ & Res, Beijing, Peoples R China; 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Yuwan,Ma, Anzhou,Liu, Guohua,et al. Potential feedback mediated by soil microbiome response to warming in a glacier forefield[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Wang, Yuwan.,Ma, Anzhou.,Liu, Guohua.,Ma, Jianpeng.,Wei, Jing.,...&Zhuang, Guoqiang.(2019).Potential feedback mediated by soil microbiome response to warming in a glacier forefield.GLOBAL CHANGE BIOLOGY. |
MLA | Wang, Yuwan,et al."Potential feedback mediated by soil microbiome response to warming in a glacier forefield".GLOBAL CHANGE BIOLOGY (2019). |
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