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DOI | 10.1038/s41561-019-0417-4 |
Persistence of dissolved organic matter explained by molecular changes during its passage through soil | |
Roth, Vanessa-Nina1,2; Lange, Markus1; Simon, Carsten1; Hertkorn, Norbert3; Bucher, Sebastian1; Goodall, Timothy4; Griffiths, Robert, I4; Mellado-Vazquez, Perla G.1,5; Mommer, Liesje6; Oram, Natalie J.6,7; Weigelt, Alexandra8,9; Dittmar, Thorsten10,11; Gleixner, Gerd1 | |
2019-09-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:9页码:755-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; England; Mexico; Netherlands |
英文摘要 | Dissolved organic matter affects fundamental biogeochemical processes in the soil such as nutrient cycling and organic matter storage. The current paradigm is that processing of dissolved organic matter converges to recalcitrant molecules (those that resist degradation) of low molecular mass and high molecular diversity through biotic and abiotic processes. Here we demonstrate that the molecular composition and properties of dissolved organic matter continuously change during soil passage and propose that this reflects a continual shifting of its sources. Using ultrahigh-resolution mass spectrometry and nuclear magnetic resonance spectroscopy, we studied the molecular changes of dissolved organic matter from the soil surface to 60 cm depth in 20 temperate grassland communities in soil type Eutric Fluvisol. Applying a semi-quantitative approach, we observed that plant-derived molecules were first broken down into molecules containing a large proportion of low-molecular-mass compounds. These low-molecular-mass compounds became less abundant during soil passage, whereas larger molecules, depleted in plant-related ligno-cellulosic structures, became more abundant. These findings indicate that the small plant-derived molecules were preferentially consumed by microorganisms and transformed into larger microbial-derived molecules. This suggests that dissolved organic matter is not intrinsically recalcitrant but instead persists in soil as a result of simultaneous consumption, transformation and formation. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484058100017 |
WOS关键词 | CARBON TURNOVER ; FULVIC-ACIDS ; EXTRACTION ; TRANSPORT ; BACTERIAL ; DYNAMICS ; FOREST ; CLAY ; BIODEGRADABILITY ; MICROORGANISMS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/186887 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Max Planck Inst Biogeochem, Jena, Germany; 2.Thuringer Landesamt Umwelt Bergbau & Nat Schutz, Jena, Germany; 3.German Res Ctr Environm Hlth, Res Unit Analyt Biogeochem BGC, Helmholtz Zentrum Munchen, Neuherberg, Germany; 4.Ctr Ecol & Hydrol, Wallingford, Oxon, England; 5.Politechn Univ Sinaloa, Mazatlan, Mexico; 6.Wageningen Univ, Plant Ecol & Nat Conservat Grp, Wageningen, Netherlands; 7.Wageningen Univ, Dept Soil Qual, Wageningen, Netherlands; 8.Univ Leipzig, Inst Biol, Leipzig, Germany; 9.Univ Leipzig, Inst Biol, Systemat Bot & Funct Biodivers, Leipzig, Germany; 10.Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Res Grp Marine Geochem, ICBM MPI Bridging Grp, Oldenburg, Germany; 11.Carl von Ossietzky Univ Oldenburg, Helmholtz Inst Funct Marine Biodivers, Oldenburg, Germany |
推荐引用方式 GB/T 7714 | Roth, Vanessa-Nina,Lange, Markus,Simon, Carsten,et al. Persistence of dissolved organic matter explained by molecular changes during its passage through soil[J]. NATURE GEOSCIENCE,2019,12(9):755-+. |
APA | Roth, Vanessa-Nina.,Lange, Markus.,Simon, Carsten.,Hertkorn, Norbert.,Bucher, Sebastian.,...&Gleixner, Gerd.(2019).Persistence of dissolved organic matter explained by molecular changes during its passage through soil.NATURE GEOSCIENCE,12(9),755-+. |
MLA | Roth, Vanessa-Nina,et al."Persistence of dissolved organic matter explained by molecular changes during its passage through soil".NATURE GEOSCIENCE 12.9(2019):755-+. |
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