Genesis of Peat Humic Acid Structure and Properties within Bog Profiles
Studies of living organic matter humification process are essential for understanding of carbon biogeoehemieal cycle and considering this the aim of this study is to analyse relations between properties of the peat,peat humic acids and humification degree on example of analysis of two bog profiles in ombrotrophic bogs to identify the links between peat age,decomposition and humification degree,botanical composition and properties of peat humic acids (elemental,functional composition).The found variability of peat properties is much less than the significant differences in properties of peat forming living matter thus stressing the dominant impact of humification process on peat properties.Correspondingly composition of peat humic acids are little affected by the differences in properties of precursor living organic material and indicators as decomposition degree,humification degree,humic acid elemental ratio,concentrations of acidic functional groups are best descriptors of changes of organic matter during humification process.
Peat Humic substances Humic acids Structure Humification
Maris Klavins Oskars Purmalis
Department of Environmental Sciences,University of Latvia,Raina Blvd.19,LV 1586,Riga,Latvia
国际会议
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))
杭州
英文
57-59
2012-09-09（万方平台首次上网日期，不代表论文的发表时间）