الفهرس 
Eucalyptus camaldulensis Dehnh. (River Red Gum, Myrtaceae,Only 14 pages are availabe for public view
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Abstract
The present study aims at the determination of the density and phytomass of the trees and shrubs that constitute the Sadat forest, in addition to assess the environmental impact of the artificial afforestation on the natural vegetation in the study area and soil characteristics. The studied tree species are: Eucalyptus
camaldulensis, Eucalyptus citriodora, Khaya senegalensis and Dalbergia sissoo as single species, and Casuarina species as mixed species. One hundred and eighteen 118 permanent stands (each of 10 x 10 m2) were selected and distributed, as evenly as possible, all over the forest to represent the apparent variations in the different tree plantations. Moreover, eight stands were chosen outside the forest borders to represent the wild vegetation. Seventy eight stands out of the total stands were chosen for study of the above-ground production of the trees. In each stand, tree density and basal area of the selected tree species were determined. The maximum stem height was measured from ground surface to the top of the main leader using measuring pole. Stem diameter at breas
height (dbh =1.30 m) and stem circumference were measured for each
tree species individual per stand. The volume of stem was calculated considering it as a cylinder using the equation V=πr2h. According to the stem height, tree species were classified into 11 size classes. Frequency of species was estimated for each size class. During collection of tree data, vegetation cover of each stand was estimated and soil samples were collected from the seventy eight stands as a profile of 0-50 cm depth below the soil surface. The studied stands were classified according to their species composition, using the agglomerative clustering technique and ordinate using the ordination method. Two-way indicator species analysis (TWINSPAN), as a classification technique, and detrenderd correspondence analysis(DCA), as an ordination technique, were applied to the matrix of cover estimates of 48 species in 124 stands.