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تأثیر آلودگی هوا بر ریختشناسی برگ گونههای زبانگنجشک (Fraxinus rotundifolia Mill.)، چنار (Platanus orientalis L.) و افرا زینتی (Acer negundo L.) (پژوهش موردی: شهر ارومیه) | ||
| تحقیقات جنگل و صنوبر ایران | ||
| مقاله 4، دوره 24، شماره 1 - شماره پیاپی 63، فروردین 1395، صفحه 31-21 اصل مقاله (433.39 K) | ||
| نوع مقاله: علمی- پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfpr.2016.106685 | ||
| نویسندگان | ||
| زهرا باباپور علیار1؛ عباس بانج شفیعی* 2؛ نسرین سیدی2 | ||
| 1کارشناسارشد جنگلداری، دانشکده منابع طبیعی، دانشگاه ارومیه | ||
| 2استادیار، گروه جنگلداری، دانشکده منابع طبیعی، دانشگاه ارومیه | ||
| چکیده | ||
| امروزه افزایش غلظت آلایندههای هوا در شهرهای بزرگ تبدیل به مشکل بزرگی شده است که میتواند بر ویژگیهای ریختشناسی و فیزیولوژی اندامهای درختان بهویژه برگ آنها تأثیر بگذارد. بهمنظور مطالعه این تأثیر، ابتدا با استفاده از اطلاعات ایستگاههای هواسنجی (ثابت و سیار) سازمان حفاظت محیط زیست استان آذربایجان غربی، اقدام به انتخاب پنج منطقه با آلودگیهای متفاوت شد. در مردادماه 1392 بهطور تصادفی پنج درخت از سه گونه زبانگنجشک (Fraxinus rotundifolia Mill.)، چنار (Platanus orientalis L.) و افرازینتی (Acer negundo L.) در هر منطقه گزینش شدند. سپس برگها از درختان مورد نظر جمعآوری و بلافاصله برای اندازهگیری صفات طول دمبرگ، طول پهنک، بیشینه عرض پهنک و سطح برگ به آزمایشگاه منتقل شدند. در اردیبهشت 1393 دوباره برگها از درختان انتخابشده،جمعآوری شدند و اندازهگیریها تکرار شد. برای تجزیه و تحلیل آماری از آزمونهای تجزیه واریانس، دانکن و t جفتی استفاده شد. نتایج نشان داد که صفات ریختشناسی برگ هر سه گونه مورد بررسی بهطور معنیداری در سطح اطمینان 95 درصد تحت تأثیر آلایندههای هوا قرار دارند و میزان تأثیر آلایندههای هوا بر صفات ریختشناسی برگ هر سه گونه در مردادماه بیشتر از اردیبهشتماه بود. | ||
| کلیدواژهها | ||
| آلایندههای هوا؛ جنگلداری شهری؛ سطح برگ؛ طول پهنک؛ طول دمبرگ | ||
| عنوان مقاله [English] | ||
| Effect of air pollution on leaf morphology in narrow-leafed ash (Fraxinus rotundifolia Mill.), oriental plane (Platanus orientalis L.) and box elder (Acer negundo L.) (Case study: Urmia city) | ||
| نویسندگان [English] | ||
| Zahra Babapour Alyiar1؛ Abbas Banj Shafiei2؛ Nasrin Seyedi2 | ||
| 1M.Sc. Forestry, Department of Forestry, Faculty of Natural Resources, Urmia University | ||
| 2Assistant Prof., Department of Forestry, Faculty of Natural Resources, Urmia University | ||
| چکیده [English] | ||
| The increasing amount of air pollutants in large cities has turned into a crucial factor that affects morphological and physiological tree characteristics, particularly on leaf level. In order to study those effects, 5 areas ranging from least to most polluted areas were initially selected in Urmia, the capital of West Azerbaijan province, using fixed and mobile air pollution recording stations of the Environment Office in August 2013. From each three species in each area 5 individuals were randomly selected and the leaves were measured in terms of their length of petiole, length of blade, maximum width of blade and leaf area. The above-mentioned parameters were repeatedly measured in May 2014. The ANOVA, Duncan and paired-t tests were performed analyze the data. The results revealed that the morphological properties of all species are affected by air pollutions (α = 0.05), with the greater effects occurred in August 2013 compared to May 2014. | ||
| کلیدواژهها [English] | ||
| Air pollutants, urban forestry, Leaf area, blade length, petiole length | ||
| مراجع | ||
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