Estimation of the Dependence of Humus Component Correlation of Mountain Altai Soils on Climate Elements

Author(s):  N.N. Ryabova, candidate of Sciences, associate Professor, Tomsk Agricultural Institute, Branch of Federal State-Funded Educational Institution of Higher Education “Novosibirsk State Agrarian University”, Tomsk , Russia,

E.G. Zakharova, Institute of Soil Science and Agrochemistry, SB RAS, Novosibirsk, Russia,

M.I. Dergacheva, Dr., Prof., Institute of Soil Science and Agrochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia,

Issue:  Volume 42, № 4

Rubric:  Earth sciences

Annotation:  Published results of researches of the soil humus composition in the aspect of using it as a recent base for the diagnostics and reconstruction of paleoenvironment require a multidimensional comprehension. It is rational to resolve issues tied to the analysis, estimation, and prognosis of behavior soils and humus components in changing environment through the probabilistic and statistical methods, which corresponds to natural variability of soil even within the limits of homogeneous objects. Results of the research of conditions of the humus composition formation of the Mountain Altai soils revealed a statistically important dependence of the value Cha:Cfa on climate parameters. The estimation of this connection made it possible to reveal some regularities of the humus component variability in changing conditions of humidification. It was revealed that the main types of soils of Gorny Altai, located by the increase of the effective moisture index – Hf – are a regular series with the maximum values of Cha:Cfa in the soils formed in the conditions of the pedocosm of balanced moistening. The absolute values of Cha:Cfa in the soils of the arid and humid pedocosms in the territory of Gorny Altai under sharply differing hydrothermic conditions may lie in the same ranges of values. The graph of the connection of the parameter Cha:Cfa and of the effective moisture index of the examined soils demonstrate a close correlation between them.

Keywords:  climate, temperature, relation of humic substances, moistening, hydrofactor, pedocosm, soil, environmental conditions, variability, Altai Mountains.

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