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Register a new userInventory of Pastoral Plants in Daher Al Kheribat Stand (Jableh – Lattakia) and Determination their Relative Importance
حصر الأنواع الرعوية في غابة ضهر الخريبات (جبلة - اللاذقية) و تحديد أهميتها النسبية
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نفذ هذا البحث في غابة ضهر الخريبات بمنطقة جبلة في سورية في عامي 2014- 2015 بهدف حصر و جرد الغطاء النباتي العشبي، إذ اختيرت أربعة مواقع من الغابة. و اعتمدت طريقة باركر في تقدير التغطية النباتية و التغطية النسبية، كما اعتمدت طريقة المربعات في تقدير الكثافة و التردد. جمعت العينات النباتية من الغابة و جففت ثم صنفت بالاعتماد على الفلورا المتوفرة. بينت نتئج البحث وجود 42 نوعاً تنتمي إلى 35 جنساً التي تنتمي بدورها إلى 16 فصيلة. كان عدد الأنواع النباتية المستساغة أعلى من عدد الأنواع النباتية غير المستساغة. سجلت الشويعرة المربعة L. Bromus squarrosus أعلى أهمية نسبية (28.3%) تلاها ذيل الثعلب Banks & Sol. Alopecurus urticulatus (15.1%) ثم الحليبة L. Euphorbia helioscopia (9.0%)، و يعتبر نباتي الشويعرة المربعة و ذنب الثعلب جيدان من الناحية الرعوية بينما يعتبر نبات الحليبة عديم القيمة الرعوية.
The research had been implemented in Daher Al Kheribat stand in Jableh area in Syria in 2014- 2015 with the aim to inventory and characterize the herbal vegetation cover. Four sites were chosen in the stand. We adopted Parker method to estimate the plant coverage and relative coverage, and the method of squares was adopted to estimate the intensity and frequency. Plant samples were collected from the stand and dried and then classified based on Flora available. 42 species were registered belonging to 35 genuses distributed in 16 families. The number of plant species palatable was higher than the number of plant species unpalatable. Bromus squarrosus L. recorded the highest relative importance (28.3%), followed by Alopecurus urticulatus Banks & Sol (15.1%) then Euphorbia helioscopia L. (9.0%), The Bromus squarrosus L plant and the Alopecurus urticulatus Banks & Sol are good pastoral while the Euphorbia helioscopia L. plant is worthless pastoral.
References used
Al HAKIM, W. Enumeratio Plantarum Syriae. Naturalia monspeliensia Fasc. 51. Montpellier, France, 1986
ALLEN, B. H.; BARTOLOME J. W. Cattle grazing effects on understory cover and tree growth in mixed conifer clearcuts. Northwest Science, 63, 1989, 214-220
CLASON, T. R. Economic implications of silvipastures on southern pine plantations. Agroforestry Systems, 29, 1995, 227-238
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The site was planted between 1960-1962 year with area size of 33 ha. The plots were
systematically sampled with area size of 400 m2. The distance between plots was 100 m.
Results showed that: trees number per hectare (N), stand average diameter (db
h) and
height (H), basal area (G), productivity (V) and average annual growth (A.A.G) were: 237
tree/ha, 34.68 cm, 12 m, 21.91 m2/ha, 137.51 m3/ha and 2.64 m3/ha/year ; respectively.
Stand height curve was developed with coefficient of determination of R2=0.50.
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.
يحتل الصنوبر الثمري أهمية كبيرة في مجال التشجير الحراجي الإنتاجي والقائي في سورية ورغم هذه الاهمية فإن عدد الدراسات المتعلقة بهذا النوع في سورية يعد قليلا مقارنة بالأنواع الأخرى
تقع محمية مراغة في الجهة الغربية الشمالية من البادية السورية ( بادية حلب) و إلى الجنوب الشرقي من مدينة حلب على بعد 100 كم تقريباً عن مركز المدينة وعل مسافة لا تزيد عن 25 كم تقريباً شرق مدينة خناصر وذلك عل الطريق العام الذي يصل خناصر مع اثرية ويقطعها
إلى قسمين متساويين تقريباً وهي تقع عند خط عرض 35.8 شمالاُ وخط طول 37.6 غرباً وعلى ارتفاع 400 م تقريبا فوق مستوى سطح البحر .
A microscopic study was done on five samples from the current beach sand at Ra’asShimra beach in order to identify their Foraminifera content and the abundance of the species relative to each other. The micropaleontology analysis showed that the majo
rity of the 17 specified types live on the bottom in shallow marine waters at moderate to hot temperatures. The abundance of the species was noticed in the benthic species such as: Amphistegina, Textularia, and peneroplis, which indicates the availability of suitable environmental conditions for the prosperity of these species, which is close to the current conditions. The samples of sand studied are characterized by their being disjointed, small to medium in size, varying in color, and rich in organic remains, mainly the remains of molluscs, in addition to oval marine-originated stones that vary in size. The X.R.D analysis showed the presence of two phases: a major calcareous phase, and a secondary quartz phase. The study of the thin rock slides taken from rocks located in the region, which can be considered as the source rocks of sand in the study area, showed that it is a sandy limestone.
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