英格兰洞穴苔藓植物区系特征及其岩溶沉积研究

根据作者1998－2000年采自英格兰7个岩溶洞穴452份苔藓植物标本研究，英格兰岩溶洞穴苔藓植物区系具有下列特征：（1）区系种类由20科41属65种（含变种亚种）组成；（2）区系地理成分含北温带分布（52．30％）、温带欧洲分布（15．38％）、欧洲－亚洲分布（1．54％）、欧洲－北美分布（12．31％）、旧世界温带分布（4．62％）、英国特有（1．54％）和世界广泛分布（12．31％）等7种成分；（3）生活型含高丛集型（9．22％）、矮丛集型（20％）、交织型（61．54％）、扇型（4．08％）和平铺型（4．08％）5种类型。14种洞穴苔藓植物参与了洞穴洞口钙华沉积，沉积形态包括钟乳石、洞壁钙华、洞底泉华和洞底滴水钙华4种类型。

The floristic characteristics of the bryophytes and Karst Depostion in Karst Caves,England

Based on 452 specimens and samples collected from seven karst caves in England from 1998 to 2000,the floristic characteristics of the bryophytes of karst caves including (1) the bryoflora consist of 65 taxa in 41 genera and 20 families;(2) The phytogeographical elements of the bryoflora include North Temperate (52.30%),European Temperate(15.38%),Europe-Asia elements (1.54%),Europe-North American elements (12.31%),Old World Temperate (4.62%),Endemic to UK (1.54%) and Cosmopolitans (12.31%);(3) The life-forms are Tall turfs (9.22%),Short turfs (20%),Mats (4.08%),Fans (4.08%) and Wefts (61.54%).And 14 species associated with tufa deposition at cave entrance,4 travertine types of bryophytes can be distinguished:stalacitite,travertine on cave wall,floor seepage,droping-water travertine.