洞庭湖湿地天然植被生态特性及分布规律探析  

Study on the ecological characteristics and distribution law of natural vegetation of the wetland of the Dongting Lake

作　　者：姚敏[1] 袁穗波[1] 袁正科[1] 徐煜[1] 

机构地区：[1]湖南省林业科学院,湖南长沙410004

出　　处：《湖南林业科技》2005年第5期29-30,36,共3页Hunan Forestry Science & Technology

基　　金：湖南省计委资助项目内容之一

摘　　要：洞庭湖湿地有野生维管束植物81科229属468种。世界广布类型占很大比重。全热带分布和温带分布处重要地位。表现出植被隐域性特点,并具有明显的地带性烙印。草本植物占93.16%,木本占6.41%,半木质占0.43%。草本中多年生、水生、一年生分别占30.98%、31.20%和30.98%;水生植物(146)>湿—中生植物(130)>水—湿生植物(109)>中生植物(48)>湿生植物(35);植被分布规律为区域内的镶嵌分布,地势变化处的成带分布和局部地点的环状分布。There are 81 families, 229 genus and 468 species of wild vascular bundle in the wetland of the Dongting Lake. The wildly distributed type are most numerous. The torrid zone distribution and temperate zone distribution were main station. The main characteristic was invisibility and obvious locality. The herb plants account for 93.16%, woody plants 6.41% and half woody plants 0.43%. The perennial plants, hydrophilic plants and one-year-old plants account for the. herb plants were 30.98%, 31.20% and 30.98% respectively. Hydrophily plant （146） 〉 wet feet-mesophyte（130） 〉 hydrophily-wet feet（109） 〉 mesophyte（48） 〉 wet feet（35）. The vegetation distribution is the setting distribution in the districts, and the line distribution in changing hypsography parts and ring distribution in some parts, The undulation in the characteristics of plant community was obvious and there was the deflection undulation in the changing of sediment accumulation.

关 键 词：湿地 植被 特性 洞庭湖 

分 类 号：Q948.15[生物学—植物学]