贵州梵净山尖叶拟船叶藓Dolichomitriopsis diversiformis(Mitt.)Nog.群落生态环境特征初探

通过野外调查观测和室内分析 ,对东亚特有濒危植物尖叶拟船叶藓Dolichomitriopsisdiversiformis(Mitt.)Nog .群落在梵净山的生态环境进行了初步研究 ,结果表明该植物分布在 170 0m— 190 0m范围的常绿阔叶林内 ,主要伴生植物为白发藓Leucobryum glaucum、羽藓Thuidiumsp .、刀叶树平藓Homaliodendronscalpellifolium和膜蕨Hymenophyllumsp .等 ,喜阴湿及西北向散射光 ,其附生树种没有明显的专一性。与所处的森林群落土壤环境相比 ,尖叶拟船叶藓群落附生基质中K、Ca、Mg、Fe、Cu的含量较高 ,Mn、Zn、P的含量低。与伴生植物相比 ,尖叶拟船叶藓植物体内Fe含量高 ,K、Ca、Mg、Cu含量低 ,而Mn、Zn和P含量处于中等水平

A preliminary study on the community environment of Dolichomitriopsis diversiformis (Mitt.) Nog. in Mt. Fanjing, Guizhou, China

Based on the field investigations and laboratory examinations,a preliminary study on the community environment of Dolichomitriopsis diversiformis (Mitt.) Nog. in Fanjing Mountain, China, has been done. The results are as follows: (1) The vertical distribution of this species is located in the evergreen broadleaved forest from 1700-1900 m above sea level, and its accompanied species are Leucobryum glaucum?Thuidium sp., Homaliodendron scalpellifolium and Hymenophyllum sp. et al. It prefers high moisture and low spread light facing to northwest and no special epiphytes. Comparing the containing of the inorganic elements between Dolichomitrum diversiformis (Mitt.) Nog. and its accompanied species, substrata and soil, Dolichomitriopsis diversiformis contains high Fe and low K, Ca, Mg and Cu, however Mn, Zn and P are at the median level.