- Dawud MH Al-Eisawi 1*, Sawsan AS Oran2
The vegetation cover of the northern mountains of Jordan was
investigated and surveyed. Line transects sampling method as well as
walking through methods have been applied in this study. A total area of
15x80 km was studied and divided into grid system, and thus the
selected grids have been used for the line transect sampling. The study
showed that the natural forest of Aleppo pine, evergreen oak forest,
deciduous oak forest, degraded forest and manmade Aleppo pine forest
areas are suffering from man interference and continuous encroachment
for the uses of agriculture, urbanization, grazing, fire and querying.
The available plant species under forest were collected and herbarium
specimens are prepared and deposited. Analysis parameters such as
density (D), relative density (RD), frequency (F), relative frequency
(RF), abundance (A), relative abundance (RA) and the importance value
(IV) are studied. The values of the parameters are recorded for all
species, but since the number of collected species is more than 500,
then these parameters are listed for the highest 20 species to show
clear image about the most dominant and the most abundant and other
parameters. From the quantitative ecological analysis using various
parameters, the species recoded as having the highest values such as
Quercus coccifera, Sarcopoterium spinosum, Asphodelus aestivus, Eryngium
creticum, Ononis natrix and others confirm that the study area falls
within a Mediterranean biogeographic zone in Jordan. Based on the
obtained results, it is highly recommended thus to exert maximum efforts
to conserve such limited forest cover, since Jordan, is classified as a
country with dry to semidry ecosystem. In addition some of the rare and
endemic recorded species occur only under forest cover, particularly
the orchid species. This articles originally published at: Volume 6, Number 5, May 2015 – JBES
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