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Regulation of priming effect by soil organic matter stability over a broad geographic scale
Chen, Leiyi; Liu, Li1; Qin, Shuqi1; Yang, Guibiao1; Fang, Kai1; Zhu, Biao2,3; Kuzyakov, Yakov4,5,6; Chen, Pengdong7; Xu, Yunping8; Yang, Yuanhe1
AbstractThe modification of soil organic matter (SOM) decomposition by plant carbon (C) input (priming effect) represents a critical biogeochemical process that controls soil C dynamics. However, the patterns and drivers of the priming effect remain hidden, especially over broad geographic scales under various climate and soil conditions. By combining systematic field and laboratory analyses based on multiple analytical and statistical approaches, we explore the determinants of priming intensity along a 2200 km grassland transect on the Tibetan Plateau. Our results show that SOM stability characterized by chemical recalcitrance and physico-chemical protection explains more variance in the priming effect than plant, soil and microbial properties. High priming intensity (up to 137% of basal respiration) is associated with complex SOM chemical structures and low mineral-organic associations. The dependence of priming effect on SOM stabilization mechanisms should be considered in Earth System Models to accurately predict soil C dynamics under changing environments.
Subject AreaMultidisciplinary Sciences
Indexed BySCI
WOS Research AreaScience & Technology - Other Topics
WOS IDWOS:000495393000007
Publication PlaceLONDON
Funding OrganizationNational Key R&D Program of China [2017YFC0503903] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0302] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31770557, 31825006, 41877046, 31922054] ; Youth Innovation Promotion Association of the Chinese Academy of Science [2017109] ; Key Research Program of Frontier Sciences ; Chinese Academy of SciencesChinese Academy of Sciences [QYZDB-SSW-SMC049] ; RUDN University program 5-100 ; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30012]
Corresponding Author Emailyhyang@ibcas.ac.cn
OAgold, Green Published
Citation statistics
Cited Times:113[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Peking Univ, Minist Educ, Coll Urban & Environm Sci, Inst Ecol, Beijing 100871, Peoples R China
4.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China
5.Univ Gottingen, Dept Soil Sci Temperate Ecosyst, D-37077 Gottingen, Germany
6.Univ Gottingen, Dept Agr Soil Sci, D-37077 Gottingen, Germany
7.RUDN Univ, Agro Technol Inst, Moscow 117198, Russia
8.Ludong Univ, Coll Life Sci, Yantai 264025, Peoples R China
9.Shanghai Ocean Univ, Coll Marine Sci, Shanghai Engn Res Ctr Hadal Sci & Technol, Shanghai 201306, Peoples R China
Recommended Citation
GB/T 7714
Chen, Leiyi,Liu, Li,Qin, Shuqi,et al. Regulation of priming effect by soil organic matter stability over a broad geographic scale[J]. NATURE COMMUNICATIONS,2019,10.
APA Chen, Leiyi.,Liu, Li.,Qin, Shuqi.,Yang, Guibiao.,Fang, Kai.,...&Yang, Yuanhe.(2019).Regulation of priming effect by soil organic matter stability over a broad geographic scale.NATURE COMMUNICATIONS,10.
MLA Chen, Leiyi,et al."Regulation of priming effect by soil organic matter stability over a broad geographic scale".NATURE COMMUNICATIONS 10(2019).
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