根据湖南省福寿国有林场杉木生态公益林(幼龄林、中龄林、近熟林)复测数据,通过研究Hegyi, V_Hegyi,W_ V_ Hegyi 三种竞争指数与胸径的相关性,选择相关性最强的W_ V_ Hegyi 竞争指数,构建单木竞争生长模型。以此为基础,用加权平均树高作为胸径生长量的权重,重新构建了单木竞争生长模型,并对W_ V_Hegyi竞争指数分布规律进行分析,利用回归分析方法构建径阶竞争指数预估模型和径阶生长模型。通过基于加权胸径生长量与W_V_Hegyi竞争指数构建径阶生长模型,以期为林木从单木到林分的模拟提供新途径。
Based on the retest data of young ,half-mature and near-mature Cunningharnia lanceolata ecological forest in Fushoushan National Forest Park of Hunan,and the correlation among Hegyi,V Hegyi,W_V_Hegyi, the three competition index, the W_V_Hegyi which was the strongest one was chosed to construct individual competition tree model. According to the above, the weighted average tree height as the weight of DBH growth,then rebuilded the individual tree model. And quantitative analysis was carried out on the competition index of the diameter class,and the regression analysis method was used to build prediction model of diameter class competition index and diameter class growth model. The diameter class growth model was constructed based on the weight DBH growth and W_V_Hegyi competition index,in order to provida new way for simulation from individual to stand.
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