human caused injury

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Image Descriptor Description
1407041 Damage Collecting maple syrup is a yearly ritual. Several taps a year will not harm the tree, but too many will strain its recuperative powers and cause internal injury.
1408021 Damage This oak was severely wounded when it was small. A crack later formed over the callus closure. Lawn mowers cause many injuries that later become cracks. Injured roots or roots killed during planting may also lead to cracks five or even 10 years later.
5055076 Damage Maple tapping injury and decay

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