Tree Species Diversity in the Stands of Beech and Valuable Broadleaves in the Area of the Np `djerdap`
نویسنده
چکیده
The tree species diversity in mixed stands of beech and valuable broadleaves was researched in the area of the National Park `Djerdap` on fifteen sample plots (total study area of about 5 ha). For this purpose, the following diversity measures were applied: (1) Shannon`s index H', (2) Simpson`s index (Simpson 1949), (3) McIntosh`s diversity index D' (McIntosh 1967), (4) Hill’s N1 diversity number, (5) Hill’s N2 diversity number and (6) Hill’s E5 index. The results showed that the tree species diversity in the study forest stands didn’t depend significantly on the type of the index applied to measure diversity.
منابع مشابه
Species Diversity of Trees and Forest Floor Plants in Oriental beech Forest Types of Shastkalate Educational and Research Forest, Gorgan)
Trees are the most important biological elements of forest ecosystems. The variability of the tree species composition inhabiting in the Oriental beech forest, not only forms different forest types but also has a remarkable impact on the species diversity of forest floor plants, due to the existence of trees in the overstory layer. In this research, forest types of an an Oriental beech were ide...
متن کاملPlant Biodiversity under Impact of Slope Position in Managed and Unmanaged Beech Forest of Asalem-Gilan
This study was carried out in managed and unmanaged Fagus orientalis L. (beech) stands in the Asalem beech forest in order to compare the composition and diversity of plant species. Three V-shaped catena landforms were selected for each stand. Then, large quadrats, 400 m2 area, with selective method and within each of them, small quadrats, 4 m2 area, were established along each catena and slope...
متن کاملویژگی های ساختاری روشنهها در فاز تشکیل روشنه در روند تحولی توده های راش در جنگلهای اسالم استان گیلان
Small-scale disturbances that create canopy gaps play a key role in regulating successional pathways in temperate forests. This research was carried out with the aim of investigating the structural characteristics of natural canopy gaps in the in the Gap making phase during the development of beech stands in the Asalem forests-Guilan as the initial phase of the development of beech stands. Thre...
متن کاملInvestigating the Structure of Beech Stands in the Gap Making Phase (Case study: Asalem Forests, Guilan)
Forest structure consider the spatial arrangement of trees characteristics such as age, size, species, gender and so on is.This study aimed to investigate the structural diversity of three one-hectare stands in the gap making phase, were studied. For this purpose, three sample plots with a one hectare area were selected in Asalem beech stands which belonged to the structural features of the gap...
متن کاملAllometric Equations of Beech (Fagus orientalis L.) Biomass in Managed and Unmanaged Stands in Safarood's Forest, Mazandaran Province
Biomass measurement is important in terms of ecological and economical evaluation of the structure and conditions of habitat and can provide an estimate for carbon sequestration in different organs of tree. In order to assess the amount of biomass in harvested and unmanaged Beech stands, two compartments (511 and 514) of Safaroodchr('39')s forest were selected. A plot of 6.25 hectare from e...
متن کامل