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analyses the physical factors of the Palestinian bioclimate, the mean monthly
and annual temperature, mean monthly maximum temperature, and mean monthly
minimum temperature using data from six weather stations from the Palestine
Meteorological Department, recorded in two periods: The first period from 1969
to 1981, the second period from 1975 to 1995 (more than 32 years). Statistical
tests included a bioclimatic analysis of Palestinian meteorological stations
for the periods from 1969-1981 and 1975-1995 by using bioclimatic
classification of the Earth of Rivas Martinez Salvador, with regard to
thermicity index, compensated thermicity index, annual ombrothermic index, and
simple continentality index. The bioclimate of Palestineis affected by various
factors, such as the Jordanian-Syrian desert, and its natural geography and topography,
among others as well as biodiversity. Annual ombrothermic index value ranging
between 0.6 to 3.4 and simple continentality index was from 12.4 to 18.1. It is
concluded that the occupied Palestinian territories belong to the arid,
semiarid, dry, sub-humid and humid ombrotype, and the Inframediterranean,
Thermomediterranean and Mesomediterranean bioclimatic belt.
article presents a study of the cloud forest dominated by the Prestoea montana (R. Graham) Nichols.
This is a hyperhumid forest located in ravines and shaded areas with cloud
condensation, and at heights ranging from 350 - 1250 masl. This type of forest
is always found in thermal and mesotropical belts, without ever reaching the supratropical
belt. This study was based on works published by other authors and on our own
field sampling. The article begins by describing the geological, bioclimatic,
biogeographic and floristic aspects of the areas in the study, specifically the
hyperhumid areas in the central and eastern mountains. Due to the scarcity of
phytosociological works on this area, we apply a statistical treatment to
compare our communities with other associations described in Cuba. This
comparison reveals that these forest groups are floristically quite distant
from each other, both with regard to alliance and association species. We
therefore propose two new communities: Cyathea
furfuracea Baker and Prestoea montana (Grah.) Nichol; Ormosia krugii Urb.
and Prestoea montana (Grah.) Nichol.