Molecular Weight of Dissolved Organic Carbon, Nitrogen, and Phenolics in Grassland Soils
作者： David L Jones , Victoria B Willett , Elizabeth A Stockdale , Andrew J Macdonald , Daniel V Murphy
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摘要: Accurate characterization of dissolved organic matter (DOM) in soil is vital for understanding its functional signifi cance. In this study, we used ultrafi ltration to determine the molecular weight (MW) distribution C (DOC), N (DON), and phenolics two contrasting agricultural grassland soils. This MW fractionation (>100, 10–100, 1–10,and 1 kDa) both high-MW fraction contained a cant amount N, however, was no more enriched phenolic-containing substances than low-MW fraction. Our results are consistent with view that solutions contain diverse size range compounds but does not disproportionate or N.
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F. J. Stevenson, HUmus Chemistry Genesis, Composition, Reactions ,(1982)
Minze Stuiver, Henry A Polach, Characterizing aquatic dissolved organic matter. Environmental Science & Technology. ,vol. 37, pp. 355- 363 ,(1977) , 10.1017/S0033822200003672
R. M. Fuller, G. M. Smith, R. A. Hill, J. M. Sanderson, Land cover map 2000 NERC/Institute of Terrestrial Ecology. ,(1999)
David L. Jones, David Shannon, Thippaya Junvee-Fortune, John F. Farrar, Plant capture of free amino acids is maximized under high soil amino acid concentrations Soil Biology & Biochemistry. ,vol. 37, pp. 179- 181 ,(2005) , 10.1016/J.SOILBIO.2004.07.021
Jerry A. Leenheer, Jean-Philippe Croué, Peer Reviewed: Characterizing Aquatic Dissolved Organic Matter Environmental Science & Technology. ,vol. 37, ,(2003) , 10.1021/ES032333C
Robert G Qualls, Comparison of the behavior of soluble organic and inorganic nutrients in forest soils Forest Ecology and Management. ,vol. 138, pp. 29- 50 ,(2000) , 10.1016/S0378-1127(00)00410-2
Johannes Rousk, Davey L. Jones, Loss of low molecular weight dissolved organic carbon (DOC) and nitrogen (DON) in H2O and 0.5 M K2SO4 soil extracts Soil Biology & Biochemistry. ,vol. 42, pp. 2331- 2335 ,(2010) , 10.1016/J.SOILBIO.2010.08.017
A. J. Macdonald, D. V. Murphy, N. Mahieu, I. R. P. Fillery, Labile soil organic matter pools under a mixed grass/lucerne pasture and adjacent native bush in Western Australia Soil Research. ,vol. 45, pp. 333- 343 ,(2007) , 10.1071/SR06133
Paula Roberts, Roland Bol, Davey L. Jones, Free amino sugar reactions in soil in relation to soil carbon and nitrogen cycling Soil Biology & Biochemistry. ,vol. 39, pp. 3081- 3092 ,(2007) , 10.1016/J.SOILBIO.2007.07.001
E.C. Minor, J.-P. Simjouw, J.J. Boon, A.E. Kerkhoff, J. van der Horst, Estuarine/marine UDOM as characterized by size-exclusion chromatography and organic mass spectrometry Marine Chemistry. ,vol. 78, pp. 75- 102 ,(2002) , 10.1016/S0304-4203(02)00011-7