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杉木(Cunninghamia Lanceolate)在我国栽培历史悠久,分布范围广泛,生长迅速,材质优良,产量高,历来是重要的用材树种之一。长期以来,我国广大科学工作者从杉木的分布、分类学特征、生态特性和杉木生长与环境条件的关系的调查,到立地条件类型划分及其评价和造林技术的研究等,都进行了广泛、深入的研究。本文根据1984年四川盆地西部边缘山地杉木林凋查结果,在多因子探讨林地分类的基础上,应用多元二次完全式回归研
Cunninghamia Lanceolate has long been cultivated in our country with a wide range of distribution, rapid growth, high quality and high yield. Cunninghamia Lanceolate has always been one of the important species of timber. For a long time, the majority of scientists in our country conducted a wide range of research work on the distribution of taxa, the taxonomic features, the ecological characteristics, the relationship between the growth and environmental conditions of Chinese fir, the classification of site conditions, and the evaluation and afforestation techniques. Deep research. According to the results of the investigation of Chinese fir forest in the mountainous area in the western edge of Sichuan Basin in 1984 and based on the multifactorial analysis of the classification of forest land, multivariate quadratic complete regression analysis