[Improvement of soil fertility parameters as the factor of efficiency increase of pine forest stands and decrease of receipt of 137Cs]
2007
Bulko, N.I. | Shabaleva, M.A., National Academy of Sciences (Belarus). Institute of Forestry
Objects of research were polluted by radionuclides the pine plantings growing on sod-podsolic sandy soils. Results of research are submitted. Antagonistic influence of potassium on receipt 137Cs in a pine mossy forest stand is traced and later 13 years after disposable entering of fertilizer. Authentic decrease in activity 137Cs in components of phytoweight of forest stands in 1,3-4,3 times is provided. Entering of potassium causes authentic increase of efficiency of the pine forest stand, increase in an annual gain on diameter later 11 years after the experiment beginning. Entering of potassium initiates processes of redistribution of macronutrients in biocoenosis compartments of pine forest. Most intensively these processes go within 5-7 years with the tendency of gradual formation of new quasi-equilibrium conditions at which indicators of soil fertility improve and lability of potassium increases
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