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根据1964年“南方采脂研究工作会议”的精神,我们承担了本课题的研究任务。近十年来,坚持下乡上山,到社队蹲点,结合生产进行试验工作。我们采用侧沟深度0.5厘米,步距0.3厘米,间隔期为1天,负荷率40%,侧沟夹角65°～70°等技术指标。在开阳县翁昭公社建立以生产队为主,有领导干部、贫下中农、技术人员参加试验的“中期采脂生产工艺样板林”。同时,以大规模群众生产“样板林”的数据来验证“工艺林”的研究指标。试验林地为20～25年生马尾松天然次生林,处山腰中上部,面积15公顷,海拔750米,年平均气温16.8～17.7℃,最冷月平均温度8～9℃,最热月平均温度38.2℃,年降雨量1,116毫米,土壤为灰黄壤,土层深1米,较
According to the spirit of “Working Conference of Southern Grease Research” in 1964, we undertook the research task of this subject. Over the past decade, insist on going to the countryside and going to the communes and communes to make expeditions and trial production in combination with production. We use the side ditch depth of 0.5 cm, step 0.3 cm, the interval of 1 day, the load rate of 40%, side ditch angle of 65 ° ~ 70 ° and other technical indicators. Wengzhao County in Kaiyang commune to establish a production team-based, leading cadres, poor middle peasants, technical personnel to participate in the trial of “medium-fat production process template forest.” At the same time, the mass production of “model forest” data to verify the “technical forest” research indicators. The experimental forestland is a natural secondary forest of Pinus massoniana from 20 to 25 years old. It covers an area of 15 hectares and an elevation of 750 meters above sea level. The annual average temperature is 16.8-17.7 ℃, the coldest month average temperature is 8-9 ℃, and the hottest month average temperature is 38.2 ℃ , Annual rainfall of 1,116 mm, the soil is yellowish brown soil, deep 1 meter, more