日本落叶松林分生长量Richards生长方程的建立与应用

The Application of Richards Growth Equation in Stand Growth Estimate

在3个参数Richards生长方程的基础上,研究了5个参数的生长方程y=c_1s_1^(c_2)(1-e^(-c_3N^(c_4t)))^(c_5)。经实际在辽宁日本落叶松生长区应用,精度检验性好,估测效果良好,可在生产中应用。

On the basis of three parameter Richards growth equation, the five parameter growth equation y = c1sic2(1-e-c3Nc4t)c5 is studied, and it's precision test and anticipated results are stardard. The equation is able to run in forestry practice.