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2020, № 3 (41) |
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ECOLOGY
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Soldatov V.P., Shkhapatsev A.K., Kazeev K.Sh., Azarenko M.A., Kolesnikov S.I. |
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Enzyme activity and humus content in post-forest soils of Adygea |
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As a result of the clearing of forests on the territory of the middle mountains of the Republic of Adygea, significant changes occur in the soil cover of felling areas, which persist 9 years after disturbances. A significant increase in the density of the addition of rendzina during clear felling in comparison with forest soils persists after 9 years. The reaction of the soil environment increases due to the ingress of a large amount of detrital limestone into the soil after technological work during felling and skidding. When felling forests, areas are formed with varying degrees of disturbance of the soil and vegetation cover. In areas of clearings with varying degrees of disturbance, various patterns of changes in the content of humus and enzyme activity were revealed. The humus content in the upper soil layer decreases because of erosion and scalping in areas with moderate to severe disturbance. In areas with a weak disturbance, an increase occurs due to the development of the sod process with the participation of tall grass meadow vegetation. With moderate and severe damage to the soil surface, a natural decrease in enzyme activity (invertase, dehydrogenase, phosphatase) occurs in both clearings in comparison with the control forest areas. With weak soil damage, the changes were not so significant, and cases of increased enzyme activity were noted
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