FTIR Analysis of Soil Organic Matter to Link the Turnover of Organic Inputs with Carbon Respiration Rates

摘要：

　　Soil amended with different organic inputs or biochar types was analyzed by Fourier transform infrared (FTIR)-microscopy.Changes in the chemical composition were observed through variations in the spectra and were consistent with changes in carbon dioxide release.Biochar addition strongly decreased the concentration of polysaccharides which was well related to low rates of carbon respiration.Forest waste also induced a low increase on carbon respiration while preserving a high ratio of aromatic carbon in soil.Otherwise,soil amendment with maize straw increased carbon respiration circa ten times while reducing the signal of aromatic carbon.Overall,the results suggest that aromatic compounds and polysaccharides largely determine carbon respiration rates in soil.

关键词： Soil organic matter Organic amendments Biochar Carbon respiration Fourier transform infrared (FTIR)

作者: M.C.Hernandez-Soriano B.Kerre B.Horemans E.Smolders

作者单位: Division of Soil and Water Management,Katholieke Universiteit Leuven,Kasteelpark Arenberg 20,3001 Heverlee,Belgium

会议类型: 国际会议

会议名称: the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))

会议地点: 杭州

会议语种:英文

页码: 22-24

在线出版日期: 2012-09-09（万方平台首次上网日期，不代表论文的发表时间）