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向非目的树种的皮下注射药物,抑制其活力和根的分蘖能力是一种有效的森林抚育方法。与抚育采伐比较,这种方法可降低作业费用,亦能减少林内光照条件的骤变及伐倒木对保留木产生的机械损伤。林用注射器应达到下述要求:一次撞击便能穿透树皮,注射口宽度达20-45毫米,深度大约10毫米;注入药量精确,不向外溅出;注射器各机构的工作(药液混合、定量和注射)应在注射器刀头对树干撞击作用下自动完成;符合机械作业的安全和劳动卫生要求;重量轻、贮药量大、操作简单可靠、携带方便。十多年前曾研制出的(?)型林用注射
It is an effective forest tending method to subcutaneously inject drugs into non-target species to restrain their vigor and root tillering ability. Compared with tending and logging, this method can reduce operating costs and reduce the sudden changes of light conditions in the forest and the mechanical damage to the reserved wood caused by the fallen wood. Forest syringes should meet the following requirements: an impact can penetrate the bark, the injection port width of 20-45 mm, a depth of about 10 mm; injection dose accurate, do not spill out; the work of the various agencies of the syringe Liquid mixing, quantitative and injection) should be completed automatically in the impact of the syringe head on the trunk; meet the safety and labor hygiene requirements of mechanical work; light weight, large storage capacity, simple and reliable operation, easy to carry. More than a decade ago developed the? Type forest injection