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ŠUMARSKI LIST 5-6/2005 str. 24     <-- 24 -->        PDF

R. Križanec: VRIJEME PRIJELAZA KAO POKAZATELJ PROMJENA U RAZVOJU ŠUMSKIH SASTOJINA ... Šumarski list br. 5–6, CXXIX (2005), 251-262
SUMMARY: Transition time is a multi-applicable taxation element. Yet,
although it can be measured and applied at any time in any forest stand of
selection silvicultural form, Croatian forestry does not use it in its full scope.


In an attempt to broaden the application, we have processed the filed data
of long-standing research in trends and changes of transition time during
stand development. The insights gained so far have been complemented with
new, practically applicable features.


Graphic presentations of periodically measured transition times during
the development of the treated stands have confirmed the hypothesis that
transition times are useful management indicators of a stand’s condition.
Comparison is made of the position, course and form of polygon or equalization
curves in relation to their interaction in terms of stability and the expected
positive or unforeseen negative changes.


Widespread use of transition times by incorporating them in the existing
methods of managing forests of selection silvicultural form will contribute to
subjective ocular classifications of crown defoliation. Objective measurements
of stand condition indicators are a starting point for damage alleviation
with the goal of achieving an optimal design of prognostic models of predictable
development and setting up guidelines for future management.


Key words: transition time, increment percentage