The study was achieved in 2014-2015 at Dahr Khribat stone pine forest, Latakia. to
determine the factors affecting the natural regeneration of the stand. The results of climate
studies indicated that the region is located in the semi-wet climate fl
oor with a mild winter
as the average of rainfall thermal coefficient reached (Q2 = 72.01). The study showed that
the low productivity of cones (20 kg con / tree) was one of the limiting factors of natural
regeneration. The trees high density (462 tree / ha), led to a decrease in tree diameter at
breast level (30 cm) and low coronary size (320.2 m3).
Seed germination was not affected by illumination periods, while salinity levels led
to a significant decrease in germination from 90% at control to 19% at 0.5 mol / l.
All of one year old sapling or seedling were dead during summer months, while more
than 90% of two years old cultivated sapling, survived in all treatments, but no significant
differences among them.
This research aimed to study the natural regeneration of Pinus brutia in Qurdaha
region, and to determine the most important factors affecting the regeneration. 42 circular
samples were taken, the area of each sample was 400m2. The following measur
ements were
taken: geographic coordinates of each sample's centre, altitude, aspect, the slope, forest
litter thickness, the proportion of gravels, stones and rocks, tree, bushes and herb cover.
Forest inventories were achieved using Braun-Blanquet method. Which, the number of
sample seedlings, the seedling height, seedling diameter, the seedling age, burning trees
and alive trees of Pinus brutia were registered. The results showed a significant negative
effect of slope and a significant positive effect of herb cover, where the percentage of data
classification by the model was reached 74.4%, while the Nagelkerke R2value was 37%.
The negative effect of the slope comes from increasing the risks of soil erosion and the loss
in their nutritional elements. In contrast, the positive effect of herbal coverage is the
contribution to reducing the risks of summer drought that can be affect the seedlings.
Forests regeneration is considered as an important and urgent need in all their existence areas for protecting environment and supporting biodiversity. Accordingly, the research aims to study the most important influencial factors in natural regenera
tion in Jabatta Al Khashab wood reserve and recommend requirements for promoting these societies to an apogee, define the hindering obstacles, and to set adequate plans to protect and develop this area. For realizing this goal, several botanic field inspections (Relevés) were performed through the time span lasted from May 2010 March 2011, through which, natural regeneration process of different botanic species was followed up in the reserve, in particular woody flora such as both oak species trees (Quercus sp), neapolitan (Crataegus azarolus) terebinth, broom and others.
The research revealed a very weak natural regeneration of oaks (Quercus sp) in general and its attendant tree in particular. It was realized that major role in that is attributed to unnatural factors namely environmental tourism and diversified human activities.
The research revealed that diversified human activity in the area, though declaring it as a natural reserve, is not only the regeneration hinderer but even the regeneration inhibitor. This activity has an explicit impact on botanic grassy and woody species regeneration decline and species population retreat due to overgrazing, overloading, random harvesting of nourishing and herbal plants, fire lighting in the reserve, picnickers' activities, and other factors.
The aim of this research was to investigate the changes of vegetation and
regeneration of plant species in Kassab forests after 1991 fire. The study area is
located in the North western part of Syria in the middle of Al-Baier and Al-
Bassit forest
s to the North of Latakia. Thirty five plant surveys (Relevé) were
carried out in the study area during 2009 according to Braun-Blanquet method
included the burned area and the nearby locations of non-burned forest. By
comparing the plant surveys (Relevé), results showed good regeneration of
most plant species that were in the study area before the fire. Three forms of
vegetation were distinguished in the study area: 1 - The areas where dominance
is shared between Pinus brutia Ten. and Quercus cerris L. subsp. pseudocerris
(Boiss.) Chalabi. 2 - Areas dominated by Pinus brutia Ten. with accompanying
species from Eu-Mediterranean zone and supra Mediterranean zone. 3 – Areas
where Pinus brutia Ten. and Quercus cerris L. subsp. pseudocerris (Boiss.)
Chalabi are partly or completely absent, and dominated by shrubs and grass
species.
