Investigation on plants species diversity of Gisoum Talesh Reserve forest, Gilan province, Iran

Ecological diversity is an importance subject in vegetation ecology,. It has been long used to assess ecological stability in forest ecosystems and to make ecological comparisons in time and space. Therefore this study was carried out in Gisoum reserve forest to obtain different species diversity indices which will be used as a document and data base for future management and long-term ecological studies. Different indices of the most important components of species diversity such as species richness and evenness along with species-abundance model calculated using different diversity program packages have been used in this study. The results showed that under story vegetation is disturbed and affected by human impacts.