摘要
以宝应湖湿地为研究对象,以Braun-Blanquet多盖度等级法设置样方开展维管植物多样性调查。通过ShannonWiener多样性指数、Simpson生态优势度指数和群落均匀度指数研究宝应湖湿地植物群落的种类组成、群落类型及其数量特征。结果显示,宝应湖湿地共有维管植物83科205属256种,现有国家级珍稀濒危保护植物6科6属6种,苏铁、银杏、水杉为I级国家重点保护植物,莲、香樟和野大豆为II级国家重点保护植物。该区湿地植被分为4个植被型、4个群系组、20个群系;湿地植物群落的物种多样性指数偏低,结合宝应湖当前存在的问题,提出宝应湖自然湿地的保护对策。
Based on the vascular plant investigation by Braun-Blanquet Cover Abundance Scale Method was carried out in Baoyinghu lake wetland,the plant species composition, community type and quantity characteristics were studied by species diversity index, ecological dominance index,and community eveness index, and the results showed that there were 256 species of vascular plant,belonging to 205 genera and 83 families. There are six na- tional rare and endangered plants, among which,Cycas revoluta, Ginkgo biloba and Metasequoia glyptostroboides are the grade I rare and endangered plants protected by national law. Cinnamomum camphora,Nelumbo nucifera and Glycine soja are the grade I1 rare and endangered plants protected by national law.The vegetations were clas- sified into 4 vegetation types, 4 foemation groups and 20 formations.The species diversity index of Baoyinghu lake wetland were low, countermeasures were put forward for the biodiversity protection in the natural wetlands of Baoy- inghu lake, based on the existing problems.
出处
《环境保护与循环经济》
2017年第8期36-41,共6页
environmental protection and circular economy
关键词
维管植物多样性
保护对策
群落结构
数量特征
vascular plant diversity
countermeasures
community structure
quantity characteristic
