江苏宝华山自然保护区苔藓植物多样性及其分布与环境关系研究

Bryophyte Diversity and Relationship between Distribution and Environmental Factors in Baohuashan Natural Reserve,Jiangsu Province

通过对江苏宝华山自然保护区苔藓植物区系进行初步调查,结果表明:该保护区有苔藓植物75种,隶属于22科44属,其中苔类6属6种,藓类38属69种;以东亚成分及北温带成分占多数,分别为22种和19种,占该区苔藓植物总种数的32%和27%。另外有一定比例的中国特有成分,丛藓科、青藓科、灰藓科、真藓科、绢藓科是其中的优势科。土壤基质、岩面土层厚度和湿度对苔藓植物分布的影响相对较大;与土生苔藓植物相比,人为干扰对石生苔藓植物分布的影响更明显。

The preliminary investigation in Baohuashan Natural Reserve,Jiangsu Province demonstrated that a total of 75 byophyte species,belonging to 22 families and 44 genera was observed,among which six species,belonging to six genera,were liverwort,and other 69 species,belonging to 38 genera,were mosses.East Asian,North Temperate and China-specific elements in the bryoflora accounted for 32%,27% and 10%,respectively.Pottiaceae,Brachytheciaceae,Hypnaceae,Bryaceae and Entodontaceae were five dominant families according to their species number.Soil matrix,soil thickness on stones,and moisture of samples showed important impacts on bryophytes distribution.Compared with soil-born bryophytes,the influences of human disturbances on the distribution of saxzcolous bryophytes was stronger.