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计算一棵松树的产脂量,习惯性的方法是以每对侧沟产脂或年产脂量;另一种方法是以割面单位面积产脂量,两者之间是有明显区别的。每对侧沟产脂或年产脂量的高低,关系到脂农当天或全年收入大小的问题;而割面单位面积产脂量的高低,既关系到脂农收入又关系到资源能否长期利用的问题。前者光考虑短期内的松脂产量,往往不顾割面面积大小,容易出现任意耗用资源的现象;后者为了达到单位面积高产,既要考虑松脂产量高又要尽量作到割面面积小从而达到长期利用。在一个采脂季节里,割面面积的大小
Calculate the yield of a pine tree, the habitual method is fat on each side of the ditch or annual production of fat; the other method is to produce fat per unit area of the cutting surface, there is a clear distinction between the two . Each side of the ditch fat production or the level of annual fat, lipid-related fat or on the same day the size of the annual income; and cut surface area per unit of fat production level, both related to the income of fat farmers and the availability of resources Long-term use of the problem. Former light consider the short-term production of turpentine, often regardless of the size of the cut surface area, prone to arbitrary consumption of resources; the latter in order to achieve high yield per unit area, it is necessary to consider the high yield of pine resin but also try to achieve a small cross-sectional area to achieve Long-term use. In a greasy season, the size of the cut surface area