SOME DIFFERENTIAL APPLICATION’S PARTICULARITIES IN THE CASE OF MAINTENANCE WORKS OF NATURAL REGENERATIONS IN THE OAK-GROVE - BEECH MIX STANDS PUBLISHEDLaura Vasilica Damian, Cristian Ghiţă Crainic
Natural regenerations represent a concrete and safety modality to obtain valuable stands, characterised by a high level of ecosystem stability and superior productivity. Management of natural regenerations is, most often, a complex activity which involves professionalism and experience as well as adequate logistical framework. The oak-grove—beech mix stands are complex ecosystems, taking into account the complementary requirements raised by both species forming the ecosystem. As a consequence, natural regeneration of this stand requires a series of framework condition for achievement. The stand accessibility represents a basic condition, if applied treatments (interventions)’ particularities are taken into account. Beech seedling tolerates to certain extent both the shading and protection provided by mother stand shading; in the case of oak grove, the requirements of in place regeneration are rather different, as longer shading could thus compromise the new stand. In order to create favourable conditions for regeneration installation and to achieve the massive state of the future stands, respectively, within an optimum period, a sequence of special works are necessary, the so-called the forestry culture maintenance. These works will be performed differently, being directly correlated with the ecological characteristics of seedling to be subsequently promoted. As a consequence, the creation of a framework of favourable conditions is targeted in order to incorporate the large size seeds into soil– the oaks case and ensuring vegetation optimal conditions for the sprung samples, through moving away herbal and arborescent species. These interventions can be performed manually or mechanically, the proper option being selected function of ground conditions and available logistics. At the same time, it is required that the maintenance works of forestry cultures to be consistently applied in order to ensure the forestry cultures outcomes, as expected by Forestry administrative bodies. The performance at due time (timing) of these works stimulates an exceptional spring and development of the future stand, thus decreasing the time span required to reach the massive state, obtaining a stand’s adequate structure and composition. Thus, the stands obtained through natural regeneration preserves the local origins in-situ. For the future, the production of these types of stands will be targeted, as the advantages offered by these stands are multiple and thus creating the prerequisites for an integrated intervention.
natural regeneration; mixed stands; improvement cuttings