帽儿山林木生长及抚育的研究

Research on tree growth and cultivation in Maoershan forest areas

笔者提出了饱和接近率的概念 ,可以用于描述林木间竞争的强度 ,并可用于发现那些接近于停滞生长的林木 ,以便在抚育间伐时将这些林木伐去 ;笔者还对三种常用的生物生长模型分析了内在的缺点 ,即生长速率与生物年龄无关。为了体现年龄对生物生长的影响 ,应在生长方程的右边乘上年龄因子t-b。

The paper put forward the new concept of saturating approach rate, which can be used to describe the competition intensity, and to find the trees being in staying growth, and then to cut these trees when the forest is tended. The paper analyzed the shortcoming of the three common growth models, which is that the growth velocity is not relative with age. In order to embody the effect of age, the right side of the differential equations should multiply the age factor.