CuO-Oxidation Products of Peat as a Key to the Analysis of the Paleo-Environmental Changes in a Wetland

概要

論文の詳細を見る
The peat profile in the Ohnohara wetland in Central Japan is very valuable due to the continuous accumulation of peat since even before the last glacial maximum era. Using this profile, we investigated the environmental and climatic changes which occurred since the last glacial era based on the determination of the contents and composition of phenolic compounds released from peat by CuO oxidation. For describing the changes in the anaerobic/aerobic conditions in the wetland, the phenolic degradation products were grouped into phenolic acids, acetophenones, cinnamic acids, and phenolic aldehydes. The changes in the ratios between cinnamyl, vanillyl, syringyl, and p-hydroxy-phenyl compounds as well as the ratio of ferulic acid/p-coumaric acid corresponded well to the changes in the vegetation type of the wetland. Phenolic compounds released from the peat samples corresponded well to the observations based on palynological studies and to the data relating to post-glacial climatic changes. Therefore, it is suggested that the contents and composition of phenolic compounds of peat could be used as an index of the changes in paleo-environments.
社団法人日本土壌肥料学会の論文