The developmental-productive characteristics of the Douglas fir cultures establishment in the process of ameliration of the coppice and degraded forests
2010
Ratknić, M., Institute of Forestry, Belgrade (Serbia) | Rakonjac, Lj., Institute of Forestry, Belgrade (Serbia)
On several sites in Serbia the Douglas fir plantations, from 15 to 30 year-old, and with site indexes 26 and 30, were researched. Fifteen sample plots, located in Vidojevica, Cer, Iverak and Vidlic were set. The productivity of the Douglas fir plantations were researched by the use of the different methods of the reconstruction of the coppice and degraded forests (by the corridor method, the method of planting under the canopy cover of the parent stand by the clear felling performed in the great areas) on 15 sample plots. Based on the comparison of current and mean volume increment, it can be concluded that these plantations are in the phase of the high productivity (in spite of the fact that the mean increment has not reached the maximum value yet). Since the period of the high productivity lasts for a relatively long time, during the long rotations Douglas fir is able to use the productive capacity of site, if the suitable tending measure are applied.
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