CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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O.N. Bakhmet, M.V. Medvedeva Changes in Soil Properties at Different Stages of Artificial Reforestation in Karelia // Forest Science (Lesovedenie). 2013. No 3. С.38-45. The paper presents the analysis of the status of Karelian soils at different stages of artificial reforestation (fresh felled area, 7-, 20-, and 40-year-old pine plantations). The chemical (pH, base saturation, Ctot and Ntot contents), biochemical (carbohydrate composition), and microbiological (abundance of microorganisms of major ecological-trophic groups) properties of the soils were investigated. The most considerable changes were revealed in the forest litter after the removal of the whole tree stand. In the soils under the young 7-year-old pine plantations, the intensity of the organic matter decomposition increased, and dead organic matter was transformed more deeply. As the tree stand grew and developed, the character and rate of the plant material entered the soil surface, as well as the rate and trends of the organic matter transformation, changed. The restoration of the soil properties studied was found to be restored in 40 years after the total removal of the whole tree stand. Logging, reforestation, forest soils, biochemical and microbiological properties, soil organic matter.. |
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