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以长白山阔叶林三类清查资料为依据,采用修正指数分布式拟合并预测林分的直径分布。结果表明:随着林分平均直径的增大,林分偏度和峭度逐渐变小,直径分布形状也发生变化。该项研究为预估该类林分各径阶的株数、制定合理的经营措施提供了理论依据。
Based on the three types of inventory data of broad-leaved forest in Changbai Mountain, the distribution of the diameter of the stands was fitted by using the modified index fitting method. The results showed that with the increase of average diameter of forest stand, the skewness and kurtosis of stands gradually decreased and the shape of diameter distribution also changed. This study provides a theoretical basis for estimating the number of different orders and the rational management measures.