a gargled tree dies if the gridle is wide and is not filled up?
Answers
Like all plants, trees use two vascular tissues for transportation of water and nutrients: the xylem (also known as the wood), and the phloem. Girdling results in the removal of the phloem, and death occurs from the inability of the leaves to transport sugars (primarily sucrose) to the roots. In this process, the xylem is left untouched, and the tree can usually still temporarily transport water and minerals from the roots to the leaves until the roots die. Death occurs when the roots can no longer produce ATP and transport nutrients upwards through the xylem.
Girdling is a slow process compared to felling and is often used only when necessary— such as removing an individual tree from an ecologically protected area without damaging surrounding growth.
Accidental girdling is also possible and some activities must be performed with care. Saplings which are tied to a supporting stake may be girdled as they grow, due to friction caused by contact with the tie. If ropes are tied frequently to a tree (e.g. to tether an animal or moor a boat), the friction of the rope can also lead to the removal of bark.
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