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我区于一九五五年以来推广下降法采脂,据调查此种方法侧沟不光滑,劳动强度大,工效低(日割三、四百株),加之温度低(年平均15℃)采脂季节短(六月至十月),因而松脂产量不高(平均每人每年采脂一千市斤),消耗刮面长(100对侧沟长约50至70厘米),一棵松树只能采脂四、五年。后经脂农和技术人员的共同努力、改革了工具把下拉式改为上推式,不但侧沟光滑省力,松脂产量也翻了一番,据统计到1970年止,全区
According to the survey, this method has the advantages of side-ditch, labor-intensiveness and low work efficiency (three or four hundred daily cuttings). In addition, the temperature is low (average annual temperature is 15 ℃) The short greasing season (from June to October) resulted in low production of turpentine (an average of 1000 pound of fat per person per year), long scraping surface (about 50 to 70 centimeters in length on the opposite side of the ditch), a pine Only grease four or five years. After the fat farmers and technical personnel work together to reform the tools to pull-push to push-type, not only the side ditch smooth and labor-saving, pine fat production also doubled, according to statistics until 1970, the region