Кислотно-основные свойства и фракционно-групповой состав гумуса дерново-подзолистой глееватой песчаной почвы при разном уровне антропогенного воздействия / Effect of different anthropogenic impacts on pH and humus composition of soddy-podzolic soil
2018
Pavlova, Olga (https://orcid.org/0000-0001-6832-3429) | Litvinovich, Andrey (https://orcid.org/0000-0002-4580-1974) | Lavrishchev, Anton (https://orcid.org/0000-0003-3086-2608) | Saljnikov, Elmira (https://orcid.org/0000-0002-6497-2066)
Changes in the acid-base properties and transformation of the fractional group composition of humus in virgin soddy-podzolic gleyed sandy soil under intensive acculturation and weakening of the active anthropogenic impact are traced in the work. It is established that intensive cultivation promotes optimization of acid-base properties and humus condition of the soil. All kinds of soil acidity are reduced, the harmful effect of mobile aluminium is eliminated, positive changes in the fractionation group composition of humus are reduced to the formation of more optically "dense" humic acids and the appearance of humic acids associated with calcium in its composition. With the weakening of economic influence, positive changes in the acid-base properties and composition of humus, achieved as a result of acculturation, are lost. It is concluded that the level of fertility of sod-podzolic gleyey sandy soil is a consequence of the level of agronomic practices used.
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