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异龄林的生长和收获有两种主要的估测值:(1)估测林分的现实生长量;(2)在长期可行的经营体制下估测生长量和收获量。前者来自现实情况的调查;而后者则来自于建立的一些预估模型。这里主要讲述第二种估测模型。同龄林和异龄林的基本差异 1、面积按龄级排列按照定义,同龄林应该是在经营中由一
There are two main estimates of the growth and harvest of different age stands: (1) the actual growth of the stand; (2) the growth and harvest under the long-term viable management system. The former comes from the investigation of the real situation; the latter comes from some of the estimated models established. Here mainly about the second estimation model. Basic differences between the same age forest and different age forest 1, according to age class by area according to the definition of the same age forest should be operated by a