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Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components

文献类型：期刊论文

作者Jia Juan 1,11; Liu Zongguang1,11; Haghipour Negar 9,10; Wacker Lukas 9; Zhang Hailong 7,8; Sierra Carlos A. 5,6; Ma Tian1,4,11; Wang Yiyun 1,11; Chen Litong 3; Luo Ao 2
刊名Ecology letters
出版日期2023-03
卷号26期号:5页码:778-788
关键词compound-specific C-14 physical fractions soil organic carbon temperature sensitivity turnover time
ISSN号1461-023X
DOI10.1111/ele.14204
英文摘要Climate projection requires an accurate understanding for soil organic carbon (SOC) decomposition and its response to warming. An emergent view considers that environmental constraints rather than chemical structure alone control SOC turnover and its temperature sensitivity (i.e., Q10), but direct long-term evidence is lacking. Here, using compound-specific radiocarbon analysis of soil profiles along a 3300-km grassland transect, we provide direct evidence for the rapid turnover of lignin-derived phenols compared with slower-cycling molecular components of SOC (i.e., long-chain lipids and black carbon). Furthermore, in contrast to the slow cycling components whose turnover is strongly modulated by mineral association and exhibits low Q10, lignin turnover is mainly regulated by temperature and has a high Q10. Such contrasts resemble those between fast-cycling (i.e., light) and mineral associated slow-cycling fractions from globally distributed soils. Collectively, our results suggest that warming may greatly accelerate the decomposition of lignin, especially in soils with relatively weak mineral associations.
WOS关键词ATMOSPHERIC CO2 CONDITIONS ; BLACK CARBON ; MINERAL ASSOCIATIONS ; LIGNIN DEGRADATION ; FRACTIONS ; CLIMATE ; PLANT ; SEQUESTRATION ; DELTA-C-13 ; FEEDBACKS
WOS研究方向Ecology
语种英语
WOS记录号WOS:000949970900001
源URL[http://ir.yic.ac.cn/handle/133337/40053]  
专题个人在本单位外知识产出
通讯作者Feng Xiaojuan 
作者单位1.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
2.Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, China
3.Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
4.State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
5.Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
6.Max Planck Institute for Biogeochemistry, Jena, Germany
7.Laoshan Laboratory, Qingdao, China
8.Frontiers Science Center for Deep Ocean Multispheres and Earth System of the Ministry of Education, Ocean University of China, Qingdao, China
9.Laboratory of Ion Beam Physics, Department of Physics, ETH Zürich, Zürich, Switzerland
10.Geological Institute, ETH Zürich, Zürich, Switzerland
推荐引用方式
GB/T 7714		 Jia Juan ,Liu Zongguang,Haghipour Negar ,et al. Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components[J]. Ecology letters,2023,26(5):778-788.
APA Jia Juan .,Liu Zongguang.,Haghipour Negar .,Wacker Lukas .,Zhang Hailong .,...&Feng Xiaojuan .(2023).Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components.Ecology letters,26(5),778-788.
MLA Jia Juan ,et al."Molecular 14C evidence for contrasting turnover and temperature sensitivity of soil organic matter components".Ecology letters 26.5(2023):778-788.

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来源：烟台海岸带研究所

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