Changes in the acid-base properties of cultivated light-textured soddy-podzolic soils in the course of postagrogenic transformation |
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| Authors: | A V Litvinovich V F Drichko O Yu Pavlova D V Chernov M V Shabanov |
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| Institution: | (1) Agrophysical Research Institute, sh. Podbel’skogo 7, St. Petersburg-Pushkin, 196607, Russia;(2) St. Petersburg State Agrarian University, sh. Podbel’skogo 2, St. Petersburg-Pushkin, 196607, Russia |
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| Abstract: | The rates of changes in the acid-base properties of the sandy-loamy soddy-podzolic soils of fallow lands abandoned for 5, 10, 30, and 63 years were determined. The transformation of the vegetation related to the fallow age has been analyzed. The density of the human-induced topsoil compaction was found to be gradually restored. Mathematical models describing the changes in the acid-base properties of the sandy-loamy soils in the course of the transition from cropland to forest are proposed. The sandy-loamy soils were shown to lose their favorable acid-base properties (gained under cultivation) more slowly than sandy soils do. |
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