Northern zagros have the highest diversity of oak species of iran. Underdevelopment, lack of arable lands due to the mountainous situation and shortage of rangeland led to high dependence of local inhabitants on forest resources. Grazing by domestic animals, for more than 7 months, lead to the destruction of ground vegetation and soil compaction. Most of the seedlings grazed or dried out during the summer, so forest structure might be affected, diameter distribution curve, as a guidline for forest structure was considered. We carried out a random-systematic sampling within 4000 ha forestland in Armardeh. … considering our results, low input (lack of regeneration) and high mortality are two most important features of unbalanced forest structure. The most essential attempt is to investigate the methods to establish and guarantee regeneration in the Armardeh and similar forests.
