دراسة تأثير الظروف المناخية في النمو القطري للصنوبر البروتي Pinus brutia Ten في محافظة طرطوس باستخدام تقنيات علم المناخ الشجري

الموضوعات

زراعة

روابط وملفات

التعريف والنوع

رقم الوثيقة

ff87a784-f20d-4589-94f7-334c9f665e0c

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل دكتوراة

نوع الملف

pdf text

أسماء الملفات

1957760_1.pdf

بيانات النشر

ترجمة العنوان

Studying the Influence of Climate Conditions on Radial Growth of Red pine (Pinus brutia Ten.) in Tartous Forests Using Dendroclimatological Techniques

ألقاب المؤلفين

[{"name_ar":"ليلى عبود","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"هبه محمد سلهب","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"وائل على","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة تأثير الظروف المناخية في النمو القطري للصنوبر البروتي Pinus brutia Ten في محافظة طرطوس باستخدام تقنيات علم المناخ الشجري

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

This study aimed to model the relationship between tree-rings widthof brutiapine and some climatic elements and indicators, and to estimate the Intensityand frequency of extreme weather events of the past decades,and alsoto predictthe radial growthof brutia pine in the coming decades based on climate change scenarios.Six sites of brutia pine covering the altitude range in Tartous governoratewere selected: Amrit -Kafrafo -Ein Affan -Hir Barefa -Kadmous Forest -Nabi Matta Mount. Ten dominant trees in each site were selected. Two perpendicular coresweretaken from each tree.Cores were treated and the tree-rings chronologies were built and well cross dated,wheneverwide and narrow rings werecarefullyidentified. The ringswidthwere measuredto the nearest 0.01mm using Photoshop program, then tree-rings index series were built using 3pbase software. Meteorological data fromsix Representativeclimaticstations covering the study sites were used,whichincluded the monthly values of precipitation,temperature(Max, Mean,Min),some of climaticindices (Sn, RDI, SPI, RAI, AI, AIE, HIC, P-ETB),and three levelsfor thermal accumulations: T>10C ̊, T>15C ̊, T> 20C ̊.The relationship between the tree-ringsindex and previous climatic variables was modeled using the Stepwise method in SPSS at significance level P = 0.05. The time series for climate elements were reconstructed based on the series of tree-rings indexwhich developed in TallahForest. Three assumptionswere developed for climate change in the near future (30 years),twelve scenarios were tested according to these assumptions. Based on scenariosassumed, the expected radialgrowth was estimated at threesites varied in thealtitude: Amrit-Ein AffanandKadmous.consequently, five models were obtained with different significant variables: precipitationof January, maximum temperature of March, sum ofprecipitation for the periodfrom November to May, the drought index Sn,andsumof the thermal accumulations above 15C ̊. Reconstruction of climate time series showed that there was no extreme or severe drought during the period 1900-1959 in the Tallah site, the moderate and light drought appeared unevenly,andthe longest period of successive drought did not exceed twoyear. The study also showed that in casethe assumed scenarios(Sa, Sb)were occurred, the radialgrowth would be significantly decreasedin the Amrit and Ein Affan sites,however, not affected in kadmous.The repetition of the climatic conditions of theyear2006-2007 on a yearly basis,would be significantly affectedthe radialgrowth in Amrit, Ein Affan and kadmous. Scenarios assumed of repetition of the year 2006-2007 every three years would be affected radial growth only in Ein Affan site.

كلمات الباحثين

climate chang scenarios, Dendroclimatology, Drougt, Pinus brutia, Precipitation, Temperature, Tree rings

إشراف وإعداد

الإشراف

ليلى عبود, وائل على

الإعداد

هبه محمد سلهب

الاقتباسات الببليوغرافية