漳平市杉木林适宜性立地判定模型研究

Study on the Suitable Site Conditions Measurement Model of Chinese Fir Forest in Zhangping City

以小班的平均树高为立地条件的判定因子,选择土层厚度、坡度、坡向、坡位、海拔和腐殖质层6个因子,通过数量化理论Ⅰ,构建了漳平市杉木林适宜性立地判定模型。结果表明:各因子对杉木生长和林地适宜性的影响均为显著状态,贡献大小依次为:腐殖质层、土层厚度、坡度、坡向、坡位、海拔,构建的模型适合于杉木林的林地适宜性判定。

Abstract The suitable site conditions measurement model of Chinese fir forest were structured by sixe factors ： soil thickness, altitude, aspect, slope, slope position and humus layer, with the help of Quantification theory I. The resuhs showed that the factors all paid significant effects on the growth and the suitable site conditions of Chinese fir, the contribution order is humus layer, soil thickness, slope, aspect, slope position, alti- tude. The constructed model was suit for measuring Chinese fir forest suitable site conditions