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火炬松生长快,成林早,是苏南丘陵山区适生的主要造林树种之一;杉木是材质优良、干形圆满、用途较广的速生树种。目前,随着林业生产的发展,已逐步开始营造杉木、火炬松混交林,但其效果如何?目前尚少见报道。为了探索混交林的林分结构、林地生产力及其经济效益,以便为以后营造混交林提供依据。我们于1985年对已造的杉木,火炬松混交林,杉木纯林进行了调查,并作分析比较,现将结果报道如下。
It is one of the main afforestation tree species suitable for mountainous areas in southern Jiangsu Province. Cunninghamia lanceolata is one of the fastest growing tree species with good quality and good dryness. At present, with the development of forestry production, it has gradually started to create a mixed forest of Chinese fir and Pinus taeda, but its effect is not yet reported. In order to explore the stand structure of mixed forest, forest productivity and economic benefits, in order to provide a basis for the future to create mixed forest. In 1985, we made a survey of the already-made Chinese fir and Pinus taeda mixed forest and the pure Chinese fir plantation and compared them for analysis and comparison. The results are reported as follows.