树木修枝技术修枝应根据林种、树种、密度及造林目的采取不同方法。针叶树造林可修掉死枝、残枝，对多头枝只保留１个。造林后３—１５年修过密枝，修侧枝１—２轮，每隔４—５年修１次。杨树则应及时定干，摘除侧芽，修掉多余侧枝。修枝切口要光滑，防劈裂，茬高１—２ｃ... Tree pruning techniques Pruning should be based on forest species, species, density and afforestation to take different approaches. Coniferous trees can be repaired dead branches, branches, on the long branches only retain one. 3-15 years after afforestation repair dense branches, repair side branches 1-2 rounds, every 4 - 5 years to repair 1 times. Poplar should be set in a timely manner, removal of lateral buds, repair extra side branches. Pruning incision should be smooth, anti-splitting, stubble high 1-2c ...