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本文研究温州洞头黑松林(Pinus thunbergii Parl.)间隔式带状皆伐补植改造2年后,对群落多样性的影响。结果表明:黑松群落共有维管植物26科30属31种,热带、亚热带区系特征显著;阔叶化改造后物种丰富度得到提高,改造后物种数提高到29种,提高了52.6%,其中灌木种类增加最多;群落多样性指数Simpson和shannon-Wiener分别提高了102.0%和117.5%,各层次的多样性为灌木层>草本层>乔木层,但均匀度上却为草本层>灌木层>乔木层。笔者认为,从景观质量、群落生物多样性和保持水土能力的提高三方面考虑,这种间隔式带状皆伐阔叶化改造方式,可在洞头地区坡度不陡、土层中等以上的针叶纯林改造中大力应用,并可推广到温州其他地区。
In this paper, we studied the effects of Pinus thunbergii Parl. On the community diversity after two years of replanted transplanting. The results showed that there were 31 species belonging to 30 genera and 26 families in the Pinus thunbergii community. The tropical and subtropical floristic characteristics were significant. The species richness was improved after the broadleaved transformation. After the transformation, the species number increased to 29 species, increased by 52.6% Among them, shrub species increased most, and community diversity indices Simpson and shannon-Wiener increased by 102.0% and 117.5%, respectively. The diversity of shrub layer> herb layer> arbor layer at different layers was uniform, but the herb layer> shrub layer > Tree layer. The author believes that from the landscape quality, community biodiversity and conservation of water and soil to consider the three aspects, this kind of interval belt-like deciduous broadleaved transformation method can be Dongtou steep slope, the soil above the middle of the needle Ye Chunlin transformation in the full application, and can be extended to other areas in Wenzhou.