人为地给林木修枝打杈,林学上叫人工整枝。这是森林抚育的一项重要技术措施。正确地运用修枝技术,不仅可以把林木培育成年轮宽窄均匀,干形通直园满,少节和无节的优良用材,而且能较大幅度地提高林木生长量。怎样正确给林木修枝打杈呢?首先,修枝切口要平滑,不偏、不裂、不伤皮。因为,平滑的切 Man-made to the tree pruning, forestry called artificial pruning. This is an important technical measure of forest tending. Proper use of pruning technology, not only to cultivate adult tree wheel width and width uniform, dry straight through the garden full, small sections and no section of the excellent timber, but also can greatly improve the growth of trees. How to correctly pruning the trees? First, the pruning incision should be smooth, not partial, not cracked, do not hurt the skin. Because, smooth cut