Palevye (pale) soils of Central Yakutia: Genetic specificity, properties, and classification

Autor:	S. N. Lesovaya, M. V. Okoneshnikova, T. S. Zaitseva, R. V. Desyatkin
Rok vydání:	2011
Předmět:	Soil Science Mineralogy Humus Podzol chemistry.chemical_compound chemistry Silicate minerals Loam Soil pH Clay minerals Calcareous Chlorite Geology Earth-Surface Processes
Zdroj:	Eurasian Soil Science. 44:1304-1314
ISSN:	1556-195X 1064-2293
Popis:	Permafrost-affected palevye (pale) soils of Central Yakutia are developed from mantle calcareous deposits of different textures and are characterized by the common mica-chloritic association of clay minerals with a higher content of chlorite in comparison with the soils developed from mantle loams and loess-like loams in the European part of Russia. In the pale soils, the distribution of clay minerals in the profile has an even pattern in the loamy variants and a differentiated pattern typical of podzols in the loamy sandy variants. Data on the chemical extracts and Mossbauer spectroscopy indicate that the iron in the pale soils is mainly fixed in silicate minerals. The content of nonsilicate iron represented by the amorphous and weakly crystallized compounds in the pale soils is relatively low. The humus-accumulative horizon in these soils is close to the gray-humus (soddy) AY horizon according to its acid-base characteristics (the soil pH and the degree of base saturation) despite the presence of exchangeable sodium and the shallow occurrence of the calcareous horizon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::602b8824d7e66566d2ec71b3e29f04fb https://doi.org/10.1134/s1064229311120027 Zobrazit plný text záznamu Plný text ve formátu PDF