Home – Home – Jornals – Contemporary Problems of Ecology 2012 number 3

Possibility to construct the growth class scale for Pinus sylvestris on the basis of the data on the course of growth of separate trunks with maximal height was analyzed. Two principles of the classification of tree stands over growth course are discussed: 1) over the parameters of Mitscherlich function - b₁(upper limit), b₂ (slope), b₃(shape), 2) over the inflection of the curve of tree elongation (h_m is the height at the moment of maximal apical growth rate, t_m is the age of achievement of the maximal apical growth rate).