Effect of Forest Roads on Biodiversity Regeneration of Tree Species

The main purpose of natural resources management is protecting the biological variety and continuance of regeneration in the natural ecosystems. Natural regeneration is one of the most important factors in the survival and resistance of natural forests.
This study investigates the effects of forest roads on the changes of natural regeneration variety of wooden species from edges of forest roads towards their inner parts in three areas and two different paved and un-paved roads. Randomly, the similar conditions were identified according to topography, slope and direction. On the two sides of road, 2m×2m microplots were used for measuring differences and plants structures.
This study indicates that characters of different climates do not have significant difference in the up and down of road and in these three ereas. The only effective factor is condition which decreases when distance from road increases. Some light demanding spices, such as Quercus castaneifolia C.A.M.Browics Alnus subcordata (L), Gaertn & Menitsky and Diospyros lotus L., grow at the side of the roads.
Generally, the rate of regeneration diversity and richness were higher at the sides of paved roads than at sides of un-paved roads.