利用一个简单的生物学模式,评论了林分的生长,可以使林业工作者在林分发育的任何阶段确定收获量和密度的关系。经验上已得到的林分材积—密度关系,以及这些关系的理论推导,现被日本科学家所发展,这包括自然稀疏的(3/2)次方定律(一个种的最大平均树木材积—密度关系)和确定产量的倒数产量(收获量)定律(该产量是林分发育 Using a simple biological model, commenting on the growth of stands can enable foresters to determine the relationship between yield and density at any stage of their stand development. Empirically obtained stand volume-density relationships, and theoretical derivations of these relationships, are now being developed by Japanese scientists including the naturally sparse (3/2) power law (maximum mean tree volume-density relationship for one species ) And the law of reciprocal yield (harvest) that determines yield (the yield is stand development