浙江省临安林场在今年采割松脂的同时,进行了九种不同采脂方法的比较试验。根据该场初步观察结果,其中较好的是跃进法和复割法,现将这两种采脂方法介绍如下:一、跃进法:是上升法和下降法的混合法。第一对侧沟是在割面的中央开割,每天采割时上下各割一 Lin’an, Zhejiang Province, this year, harvesting turpentine at the same time, carried out nine different methods of liposuction comparative test. According to the initial observations of the field, which is better is the leap forward method and the multi-cutting method, now these two methods are described as follows: First, the leap forward method: the ascending method and the descent method. The first pair of side ditch is cut in the center of the cut, every cut when cutting one up and down