The Regeneration Structure and Biodiversity of Trees and Shrub Species in Understory of Pure Plantations of Oak and Mixed with Hornbeam in the Hyrcanian Forests of Iran

Einollah Rouhi-Moghaddam, Seyed Mohsen Hosseini, Ezzatollah Ebrahimi, Ahmad Rahmani and Masoud Tabari

Pakistan Journal of Biological Sciences 10 ( 8 ): 1276 - 1281 , 2007