The analysis, study and simulation of pure and/or mixed stand structure represent a particularly important problem in the forest management planning process, and respectively in the sustainable potential forest wood’s administration, management and exploitation. The stand's structure characterizes the composition, organization and functioning preferably of the tree storey with major implications on other parts of the forestry phytocoenosis and thus on forest ecosystems overall. Silvotechnics interventions are directly related to the stands structure, as a result the complex stand structure - silvotechnics intervention-forestry strategy is defining for the integrated forest management, related to the national forest stock, regardless of the type of ownership and administration. Currently there are possibilities to study, analyze and simulate various types of stands structure, using for this purpose the mathematical modelling, which in the present paper is based on splines and algorithms, for whose implementation we used MATLAB programming environment. In the conducted case study it was examined and analyzed the structure of a stand mixture consisting of spruce and beech species, using mathematical models with cubic splines interpolating the experimental data and using the interpolation results for simulating the corresponding normal probability distribution function. The results led to the conclusions and relevant recommendations to current practical activities (needed silvotechnics interventions) done in these stands.

stand, pure stand, mixed stand, stand structure, simulation of stand structure, experimental distribution, theoretical distribution

environmental engineering

Presentation: oral