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لماذا تُدهن سيقان الأشجار بدهان ابيض؟

30 سبتمبر 2013

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خلال فترة الخمود الشتوي عند النباتات تتعرض الأشجار لعوامل مختلفة منها:

قد يعجبك ايضا

الرطوبة، وأشعة الشمس في الصباح، وانخفاض درجة الحرارة في الليل، وارتفاع درجة الحرارة داخل الشجرة.

تسبب هذه العوامل ضررا لأنسجة النبتة، وهذا الضرر يظهر في الصيف حيث تموت الانسجة المتضررة جدا، بينما تتمكن الأنسجة المتضررة بشكل طفيف من البقاء لمدة اطول.

ولحماية الشجرة من التلف تدهن بالشيد الأبيض لعزلها عن الرطوبة، وعكس اشعة الشمس في الصباح (اللون الأبيض يعكس الحرارة والأشعة)

البيئة النباتات معلومات علمية، معلومات ثقافية

أخر المواضيع من قسم : البيئة

تعليقات

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