安徽古牛降自然保护区蕨类植物初步研究——种类、区系及其分布与环境的关系

AN INVESTIGATION ON THE PTERIDOPHYTES IN GUNIUJIANG NATURAL RESERVE OF SOUTH ANHUI

本文报道了安徽省古牛降自然保护区蕨类植物104种(包括变种、变型);介绍了该区的自然概况;对该区蕨类植物的区系成分进行了分析,将其分为12个分布区类型,其中东亚分布和中国特有分布是该区蕨类植物的主要分布区类型;将该区与黄山、九华山、齐云山、庐山、武夷山、鼎湖山和秦岭等七地区的蕨类植物区系进行了比较,它和黄山等四地区相同成分较多,和鼎湖山、秦岭等地区虽有一定数量的相同成分,但整个区系成分相差较大;联系中国植物区系进行分析,该区与黄山等4地区同属中国-日本森林植物亚区的华东地区(IE12),而鼎湖山、秦岭等地虽属同一亚区,但分属不同地区,因此该区蕨类植物区系与前者有较密切的联系,与后者虽有一定联系,但关系远不及前者密切。文章最后就该区蕨类植物分布与环境的关系进行了讨论。

In the paper, 104 species including varieties and forms belonging to 54 genera and 26 families of pteridophyte are reported from Guniujiang natural reserve, where is situated in the south of Anhui Province, between Qimen and Shitai County, 30°00′—30°05′N. lat. and 117°23′—117°33′ E. long. The floristic aspect of these pteridophytes is preliminary analyzed and they are divided into 12 areal tpyes, the Eastern Asian and Sinoendemic are the principal areal type. The floristic aspect of pteridophytes in Guuiujiang region and their relation in contact with Huangshan, Jiubuashan, Qiyunshan, Lushan and Wuyishan, Dinghushan, Qinling regions as well as with the regionalization of chinese flora are discussed. The relation of ecological enveroment and distri bution of pteridophytes in Guniujiang natural reserve is also discussed.