“高接换种”是目前改变荔枝劣种的捷径之一．生产上一般采用回缩再生换种和回缩直接换种等方法．这两种方法各有优缺点，第一种树冠恢复较慢，但抗风力较强；第二种树冠恢复较快，但抗风力较弱．鉴于龙海属台风活动频繁地区，所以现有在采用第一种方法居多．此法应用要注意做 “High takeover” is one of the shortcuts to change litchi poor. Production generally used retractable regeneration and retraction directly for another method. The two methods have their own advantages and disadvantages, the first canopy recovery slower, but stronger wind resistance; the second canopy recovery faster, but the weaker wind. In view of the frequent typhoon activities in the area of ​​Longhai, the first method is currently in use. This method should pay attention to do