日本落叶松人工林单木模型的研究

Study on Individual Tree Growth Model of Artificial Japanese Larch

根据来自长岭岗林场的 4个日本落叶松人林固定标准地 2 0 9株复测林木数据 ,确定了与距离无关的竞争指数指标相对直径 ,引进了阻滞方程作为建模的基础方程 ,然后 ,通过将竞争指数分级 ,求解其参数 ,在此基础上选择了对数曲线作为参数预估模型 ,建立了日本落叶松人工林单木模型 ,该单木模型经检验证明是适用的 .

In this paper,the competition index-relative diameter irrelevant to the distance was determined and the blocking equation was introduced as a basic equation for forming a model according to the data from 209 artificial Japanese larch trees in 4 fixed standard plot in Changlinggang forest farm.In order to establish the individual tree growth model,artithm curve was taken as parameter prediction model on the basis of solving the parameters by grading the competition index.