Qualitative estimation of peat of the northern part of Sym-Dubches interfluve and the prospect of its using in agriculture

The results of the research of qualitative composition of peat midtaiga subzone of the Yenisey left bank of Krasnoyarsk Region were presented. The aim of the research was to classify the types of peat and to evaluate the quality of raw materials for future using in agriculture of the region. The analyses of peat were made by the techniques accepted in marsh science. It was revealed that bog formation in the lower current of Dubches river began in postglacial period and Holocene - 8390-11802 years ago. The stratigraphy of five peaty profiles of oligotrophic bog was analyzed with peat deposit thicknes of 1.5-5.0 m. The scheme of classification of peat including 26 classes of peat was made. The composition of fiber of dominating types of peat and average values of decomposition extent, ashcontent and humidity of peat were studied. In basic peat section gross contents 59 macro- and microelements was defined. Comparative analysis showed that the concentration of elements in oligotrophic (Sphagnum fuscum peat) and trasitional (cotton grass peat) type of peat differed slightly...