دراسة نمو الغابات وتنوعها الحيوي النباتي تحت تأثير غبار المقالع: حالة موقع تحريج كفردبيل-ريف جبلة

الموضوعات

زراعة

روابط وملفات

التعريف والنوع

رقم الوثيقة

ef8a94c4-9294-48c2-bbf2-6a4f228d78c1

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل دكتوراة

نوع الملف

pdf text

أسماء الملفات

1957646_1.pdf

بيانات النشر

ترجمة العنوان

Studying The Forests Growth and their Plant Diversity Under The Effects Of Dust Quarries: Case Study Kafardabeel Forested Area-Jableh Countryside

ألقاب المؤلفين

[{"name_ar":"زهير شاطر","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"لانا يوسف صالح","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"وائل علي","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة نمو الغابات وتنوعها الحيوي النباتي تحت تأثير غبار المقالع: حالة موقع تحريج كفردبيل-ريف جبلة

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

This study aimed to evaluate the growth and plant species diversity of Pinus brutia Ten. forest in planted forest of Kafardabeel, and to determine the factors affecting this forest under the effects of neighboring dust quarries. Basicme asurements were carried out in the Autumnof2015andthencalculated the trees growth indicators. The height of Pinus brutia trees was estimated by calibration of eight mathematical models. Dust and leaves samples were collected at the end of July in 2016, the amounts of Lead and Zinc and Nickle were estimated using an Atomic Absorption Spectrophotometer. Vegetation survies were excuted in the Spring of 2017utilizing Braun-Blanquetindices.The mean annual increment of stem diameter, wood volume and tree biomass were (0.45± 0.05cm/year), (3.42± 0.91m3/h/year), (2.803± 0.631ton/h/year) respectively .The Parabel model was the best for calculating the height using diameter at breasth eight due to its superiority in most model validation tests .The results showed that, the highest value for the Coefficient of Determination was(R²=0.53) and the lowest value of the relative accuracy (mx%) was (17.665%).The results revealed that there was no effect of dust on Pinus growth ,although the forest was heavy polluted with dust, while there was a clear negative correlation between nickel amount in leaves and: basal area (r= -0.67**), volume (r= -0.61**), current an nualincrement for thelast10and5yearsin volume(r= -0.47*) and (r= -0.49*) respectively, Volume annual growth rate (r= -0.61**), biomass and the currentannual increment in biomass(r= -0.60**). Pinus brutia had accumulated lead in its wood and leaves with zero effect on tree growth that in turn may have an environmental advantages such as air filtration and decreasing element amount in soil .The results showed that the studied site is polluted with Pb and Ni whereas Zn is in the normal range, and confirmed the possibility of detecting the atmospheric Pb, Zn, Ni pollution in the studied site using P. brutia needles as a biomonitor .Analyzing data by using Principle Components Analysis showed that the differences in vegetation composition in the plots were simple, and there were no obvious effects of the site factors or the pollution factors on diversity indicators (richness and abundance) or vegetation composition, while forest characteristics (wood inventory, biomass, mean diameter, shrub layer covering), related to the lighting conditions, affected richness and abundance without any effect in species composition itself. This may be explained by the fact that this vegetation is in the early stages of its development on one hand, and the quarrying activity in the site is relatively recent and therefore ,there wasn’t enough time for those mentioned factors to be effectiveon the other hand.

كلمات الباحثين

biomonitor, dust, growth indicators, heavy metals, Pinus brutia, plant species diversity, تنوع حيوي نباتي, صنوبر بروتي, غبار, مؤشر حيوي, مؤشرات نمو, معادن ثقيلة

إشراف وإعداد

الإشراف

زهير شاطر, وائل علي

الإعداد

لانا يوسف صالح

الاقتباسات الببليوغرافية