Dynamics of assessments indexes of spruce forests stands of different exposition-orographic groups of Ukrainian Carpathians

H.H. Hrynyk

Abstract


The patterns of growth are developed in a height and after a diameter, models of dynamics of relative and absolute stocking forests stands and general supplies for modal spruce mountain forests stands of different stand quality classes adequately describe the features of growth within the limits of the selected exposition-orographic groups (EOG) and in type site conditions (TSC) of C2-C3 and in to TSC of D2-D3. The coefficients of equalizations are certain with the proper exactness.

After growth in the height of spruce forests stands prevail forests stands of Ib stand quality classes ІІІ and ІІ EOG in to TSC of D2-D3. Forests stands of Ia stand quality classes in it is prevailed TSC of D2-D3 in growth in the height of forests stands in to TSC of C2-C3. In to TSC of D2-D3 after the dynamics of relative stocking the greatest values of index are characterize forests stands of Ib stand quality classes ІІ EOG and Ib and Ia stand quality classes ІІІ EOG. In to TSC of C2-C3 the greatest values of relative stocking are mark forests stands of I stand quality classes I EOG and of Ia class of ІІ EOG. In growth after a diameter prevail forests stands of Ia of stand quality classes of ІІІ EOG. Characterized the greatest values of absolute stocking in C2-C3 types site conditions of forests stands of Ia stand quality classes I and ІІ EOG, and in TSC of D2-D3 – forests stands of Ib stand quality classes of ІІІ EOG. After the dynamics of general supply of forest stand the best indexes are marked for forests stands of Ia stand quality classes I and ІІ EOG in to TSC of C2-C3 and of Ib stand quality classes of ІІ and ІІІ EOG in TSC of D2-D3.

Keywords


mountain modal spruce forests stands; exposition-orographic groups; assessments indexes; dynamics

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