贵州黔西南红土型金矿苔藓植物的调查

为了探明黔西南红土型金矿苔藓植物种类,为进一步利用苔藓植物作为先锋植物研究红土型金矿区植被修复提供较好的材料,采用梅花采样法对黔西南18个红土型金矿苔藓植物进行全面调查、收集、鉴定。结果表明:金矿区共有苔藓植物14科53属124种,其中,苔类植物1科1属2种,藓类植物13科52属122种;金矿区苔藓植物共有12种区系类型,以世界广布种占主体;金矿区苔藓植物丰富度指数、种相似性指数均较低,苔藓植物生活型主要以矮丛集型为主;在18个矿中寻找到5种广泛分布的苔藓植物种类:银叶真藓(Bryum argentenm)、卵蒴丝瓜藓(Pohlia proligera)、纤枝短月藓(Brachymenium exile)和土生对齿藓(Didymodon vinealis)、硬叶小金发藓(Pogonatum neesii)。

Study on Bryophytes in Lateritic Lold Ore of Southwest Guizhou

In order to clarify the species of bryophytes at laterite gold deposits in Southwest Guizhou,provide good material for further use of bryophytes as a pioneer plant of laterite gold deposits of vegetation restoration.The comprehensive investigation with plum sampling,collection,identification of the bryophyte at 18 lateritic gold deposit in Southwest Guizhou.The results showed that 124 mosses species in 53 genera of 14 families were found at the 18 lateritic gold deposits.Thereinto,two liverwort species in one genus of one family,122 mosses species in 53 genera of 13 families.There are 12 flora types of bryophytes in the lateritic gold deposits area,the main type of flora distribution is cosmopolitan.Richness index and similarity coefficient of bryophyte are all relatively low at the gold area;The life-forms of bryophyte is mainly short turfs.At the same time,there are five species of widespread bryophytes found in the 18 mine: B.argentenm,P.proligera,B.ymenium exile,D.vinealis and P.neesii.