Application of DSC–TG and NMR to study the soil organic matter

作者: N. Barros , J. Salgado , M. Villanueva , J. Rodriquez-Añón , J. Proupin

DOI: 10.1007/S10973-010-1163-4

关键词:

摘要: The environmental concern on soil exploitation, linked to global warming by the Kyoto protocol, is responsible for increasing interest in understanding of role composition and structure organic matter (SOM) carbon, C, dynamics. Thermal analysis nuclear magnetic resonance (NMR) are applied study thermal properties, SOM six samples with different C contents order improve interpretation results given analysis. Results showed that direct integral combustion peaks obtained DSC percentage TG were both directly related quantity total C. Thus, soils higher content energy too. temperatures curves those reported labile OM. NMR indicated presence aliphatic carbohydrates, a weak signal aromatic band all was not detected curves. Only two carboxyl/carbonyl which also.

参考文章(21)
William H. Schlesinger, Jeffrey A. Andrews, Soil respiration and the global carbon cycle Biogeochemistry. ,vol. 48, pp. 7- 20 ,(2000) , 10.1023/A:1006247623877
N. J. Mathers, X. A. Mao, P. G. Saffigna, Z. H. Xu, S. J. Berners-Price, M. C. S. Perera, Recent advances in the application of 13C and 15N NMR spectroscopy to soil organic matter studies Soil Research. ,vol. 38, pp. 769- 787 ,(2000) , 10.1071/SR99074
M. T. Dell’Abate, A. Benedetti, P. Sequi, Thermal Methods of Organic Matter Maturation Monitoring During a Composting Process Journal of Thermal Analysis and Calorimetry. ,vol. 61, pp. 389- 396 ,(2000) , 10.1023/A:1010157115211
N. Barros, J. Salgado, J. A. Rodríguez-Añón, J. Proupín, M. Villanueva, L. D. Hansen, Calorimetric approach to metabolic carbon conversion efficiency in soils Journal of Thermal Analysis and Calorimetry. ,vol. 99, pp. 771- 777 ,(2010) , 10.1007/S10973-010-0673-4
W.M. Thornton, XV. The relation of oxygen to the heat of combustion of organic compounds Philosophical Magazine Series 1. ,vol. 33, pp. 196- 203 ,(1917) , 10.1080/14786440208635627
Lee D. Hansen, Craig Macfarlane, Nicole McKinnon, Bruce N. Smith, Richard S. Criddle, Use of calorespirometric ratios, heat per CO2 and heat per O2, to quantify metabolic paths and energetics of growing cells Thermochimica Acta. ,vol. 422, pp. 55- 61 ,(2004) , 10.1016/J.TCA.2004.05.033
H. Šantrůčková, M. I. Bird, D. Elhottová, J. Novák, T. Picek, M. Šimek, R. Tykva, Heterotrophic fixation of CO2 in soil Microbial Ecology. ,vol. 49, pp. 218- 225 ,(2005) , 10.1007/S00248-004-0164-X
Klaus Lorenz, Rattan Lal, Caroline M. Preston, Klaas G.J. Nierop, Strengthening the soil organic carbon pool by increasing contributions from recalcitrant aliphatic bio(macro)molecules Geoderma. ,vol. 142, pp. 1- 10 ,(2007) , 10.1016/J.GEODERMA.2007.07.013
H. KNICKER, H.-D. LÜDEMANN, K. HAIDER, Incorporation studies of NH+4 during incubation of organic residues by l5N‐CPMAS‐NMR‐spectroscopy European Journal of Soil Science. ,vol. 48, pp. 431- 441 ,(1997) , 10.1111/J.1365-2389.1997.TB00209.X