Changes in forest soil properties and spruce stands characteristics after dolomite, magnesite and serpentinite fertilization

摘要

We have to deal with spruce dieback in recent years in Europe. Fertilization can be used to reduce susceptibility to forest dying through improving the chemical properties of soil. The aim of this study was to assess the condition of soil and spruce stand after dolomite, magnesite and serpentinite fertilization. The fertilization was used to sustain a stable condition and extended the life of spruce stands by several years which allows the reconstruction of the stand. The experimental plots were set up in the areas of two Carpathian nappes, differing in terms of lithological deposits, in Wisa and Ujsoy Forest Districts. Fertilization improves the chemical properties and enzymes activity of soil. The used fertilization variants did not cause inhibition of soil enzymatic activity. The effect of liming is visible mainly in the humus horizon, and in the deeper mineral soil, a significant change was not found. Heavy metals, mainly nickel introduced with serpentinite, did not inhibit the activity of enzymes. As a result of fertilization, the process of dying spruce was delayed. Three years after fertilization, a clear improvement in the chemistry of spruce needles was not recorded.