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利用浙江省开化林场杉木人工林36块标准地和144株解析木资料,比较分析5个树高生长模型后,选择Krof式生长函数H=aexp(-b/Ac)作为优势高生长模型。在分析优势高生长过程的基础上,确定基准年龄为20a,立地指数级距为2m。通过公式变形和推导,使用较简捷的方法编制了浙江省开化林场杉木人工林立地指数表。检验结果表明所编立地指数表精度符合要求。
Using 36 standard Chinese fir plantation and 144 analytical wood materials in Kaihua Forest Farm, Zhejiang Province, five tree height growth models were compared and analyzed. The Krof growth function H = aexp (-b / Ac) was selected as the dominant high growth model. Based on the analysis of the superior growth process, the benchmark age was determined as 20a and the site index grade was 2m. Through the deformation and derivation of the formula, the site index table of Chinese fir plantation in Kaihua Forest Farm of Zhejiang Province was prepared using a relatively simple method. The test results show that the accuracy of the compiled index table meets the requirements.