Europäisches Journal für Experimentalbiologie Offener Zugang

Abstrakt

Quantitative and qualitative evaluation of forest plantations by four species and suggestion the appropriate species in the Hyrcanian forest

Majid Yousefia, Mohammad Reza Pourmajidiana, Mahsa Karimia and Leila Darvishib

Due to the process of deforestation and Increasing human population and growing demands for forests, afforestation and the development of forest is and will be of paramount importance. To detection the suitable species to plantation and reforestation in Hyrcanian forest, plantation in 1990 in Berenjestanak region, Mazandaran province, Hyrcanian forests, and northern of Iran was selected. The plantation by species Populus nigra L. Acer velotinum Boiss, Fraaxinus excelsior L, Pinus brutia L in the 42 hectare area was selected. Inventory 66 circle plots 200 m2 by randomized-systematic in a net of 100 m × 75 m were collected. In each sample plot quantitative and qualitative characters of tree include the kind of species, diameter at breath height (cm), height (m), stem form, crown asymmetry, health and Survival were recorded. The species has a higher means of quantitative, qualitative characters and DBH distribution was suitable to plantation in the Hyrcanian forest. To study of different between qualities characters in the species used the ANOVA test. To analysis data, used the Excel and SPSS18 software's. . Result indicated the differences between means of quantity of tree parameter in the four species were significant. Duncan test showed that the two Populus nigra L. and Pinus brutia L. were higher the other species. Overall results showed that the two Populus nigra L. and Pinus brutia L. have a higher quantitative and qualitative characteristic were suitable to plantation in Hyrcanian forest. Authors suggested to plantation and afforestation in the Hyrcanian forest used the two species.