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Warming causes variability in SOM decomposition in N- and P-fertiliser-treated soil in a subtropical coniferous forest

文献类型：期刊论文

作者Tang, Yuqian3; Zhang, Xinyu1,2,4; Wang, Huimin1,4; Meng, Shengwang4; Yang, Fengting4; Chen, Fusheng5; Wang, Shaoqiang1,3,4; Dong, Qingxin1,4; Wang, Jing2,4
刊名EUROPEAN JOURNAL OF SOIL SCIENCE
出版日期2022-11-01
卷号73期号:6页码:17
ISSN号1351-0754
关键词enzyme activity nitrogen deposition phosphorus addition soil organic matter decomposition temperature sensitivity
DOI10.1111/ejss.13320
通讯作者Zhang, Xinyu(xinyuzhang@igsnrr.ac.cn) ; Wang, Jing(wangjing.15b@igsnrr.ac.cn)
英文摘要Both temperature and nutrient availability have essential roles in regulating the decomposition of soil carbon (C) and nitrogen (N), the main controls on organic matter accumulation in forest ecosystems. However, there is a lack of information about how N deposition and phosphorus (P) additions might impact soil C and N decomposition rates in subtropical forests under climate warming. We measured soil organic C and N mineralisation rates and corresponding exoenzyme activities in a subtropical forest soil that had received N and/or P additions for six years in experimental conditions at a range of temperatures between 10 and 40 degrees C. Our results showed that soil organic C and N decomposition rates were positively correlated with the activities of their corresponding enzymes, which suggests that the extracellular enzyme activities could be the main influence on soil organic matter (SOM) decomposition rates. N additions had a significant positive effect on soil organic C mineralisation and enhanced oxidase and hydrolase activities. P additions had little effect on soil organic C and N decomposition rates. These results challenge the assumptions that soil microorganisms are N-rich and P availability restricts organic matter decomposition, and provides additional evidence that N, not P, regulates organic matter decomposition in subtropical forests. While N additions significantly influenced the soil C and N decomposition rates, they had little effect on their sensitivity to temperature. In contrast, P additions had a significant effect on the temperature sensitivities of SOM decomposition and the beta G and NAG V-max. Overall, our results show that SOM decomposition is vulnerable to both N and P additions, and both should be considered when predicting how SOM decomposition and C cycling might change under warming.
WOS关键词EXTRACELLULAR ENZYME-ACTIVITIES ; ORGANIC-MATTER ; TEMPERATURE SENSITIVITY ; MICROBIAL COMMUNITIES ; NITROGEN DEPOSITION ; ECOENZYMATIC STOICHIOMETRY ; PHOSPHORUS LIMITATION ; CHINESE FIR ; NUTRIENT ACQUISITION ; BACTERIAL-GROWTH
资助项目National Natural Science Foundation of China ; National Science and Technology Basic Resources Survey Program of China ; [41830860] ; [42101069] ; [31988102] ; [41877091] ; [2019FY0101301]
WOS研究方向Agriculture
语种英语
出版者WILEY
WOS记录号WOS:000890446400001
资助机构National Natural Science Foundation of China ; National Science and Technology Basic Resources Survey Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/187662]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Xinyu; Wang, Jing
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.China Univ Geosci, Sch Geog & Informat Engn, Key Lab Reg Ecol & Environm Change, Wuhan, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
5.Jiangxi Agr Univ, Coll Forestry, Nanchang, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Yuqian,Zhang, Xinyu,Wang, Huimin,et al. Warming causes variability in SOM decomposition in N- and P-fertiliser-treated soil in a subtropical coniferous forest[J]. EUROPEAN JOURNAL OF SOIL SCIENCE,2022,73(6):17.
APA Tang, Yuqian.,Zhang, Xinyu.,Wang, Huimin.,Meng, Shengwang.,Yang, Fengting.,...&Wang, Jing.(2022).Warming causes variability in SOM decomposition in N- and P-fertiliser-treated soil in a subtropical coniferous forest.EUROPEAN JOURNAL OF SOIL SCIENCE,73(6),17.
MLA Tang, Yuqian,et al."Warming causes variability in SOM decomposition in N- and P-fertiliser-treated soil in a subtropical coniferous forest".EUROPEAN JOURNAL OF SOIL SCIENCE 73.6(2022):17.

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来源：地理科学与资源研究所

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