南涧大龙潭州级自然保护区植物资源与区系研究
2021-11-07李金亮杨勋张羽段剑坤
李金亮 杨勋 张羽 段剑坤
摘要:为了掌握南涧大龙潭州级自然保护区植物资源与区系特征,该研究基于2019年1月南涧县大龙潭州级自然保护区综合考察结果和2016年南涧县二类调查结果数据基础上,采用文献查阅、鉴定标本等方法对研究区的植物资源与区系做了分析,旨在在为保护区建设管理和植物资源保护提供科学有效的本底资料和基础数据支撑[1]。结果表明:(1)研究区共记录维管束植物98科239属414种,其中蕨类植物14科20属35种,种子植物84科219属379种。在种子植物中,裸子植物记录2科3属4种,被子植物82科216属375种。在被子植物中双子叶植物记录69科171属308种,单子叶植物13科45屬67种(2)保护区在植物区系上具有典型的温带特征。(3)东亚成分及其变型和中国特有种共同构成了保护区系的主体,是南涧大龙潭州级自然保护区植物区系的主要来源(4)保护区在中国植物区系区划中的地位为:Ⅲ东亚植物区—Ⅲ E中国-喜马拉雅植物亚区—ⅢE14横断山脉地区—ⅢE14a三江峡谷亚地区。
关键词: 自然保护区;植物资源;区系
中图分类号: S717.1;S717.2;S759.93文献标识码: A
Abstract:In order to grasp the plant resources and flora characteristics of Dalongtan Nature Reserve in Nanjian County, this study is based on the comprehensive investigation results of Dalongtan State Nature Reserve in Nanjian County in january2019 and the data of the second class investigation results in Nanjian County in 2016. The methods of literature review and identification of samples are used to study the plant resources and flora characteristics of the research area The analysis of resources and flora aims to provide scientific and effective background data and basic data support for the construction and management of the reserve and the protection of plant resources. The results showed that: (1) 414 vascular plants were recorded in the study area, including 35 species of ferns, 14 families, 20 genera and 35 species, and seed plants of 84 families, 219 genera and 379 species. In seed plants, gymnosperms record 2 families, 3 genera and 4 species, angiosperms 82 families, 216 genera and 375 species. In angiosperms, there are 308 species of 71 genera in 69 families and 67 species (2) belonging to 45 genera in 13 families and 45 genera of monocotyledons. The typical temperate characteristics of the protected areas are in the flora. (3) The East Asia composition and its variants and endemic species constitute the main body of the reserve system, and are the main source of the flora in the Nanjian Dalongtan State Nature Reserve (4) the status of the reserve in the flora division of China is: Ⅲ East Asia plant area - Ⅲ e China Himalayan plant sub region - Ⅲ E14 Hengduan Mountain Region - Ⅲ e14a Sanjiang Canyon sub region.
Key words: Keywords nature reserve; plant resources; flora
植物资源:是指对人类生活和生产上有用途的,可以被人类直接或间接利用的植物的总称(董世林,1994)[2],植物区系地理学是研究世界或某一地区所有植物种类的组成、分布及其起源、演化的学科[2]。植物区系:是某一地区,某一时期、某一植被类型中所有植物的总称(吴征镒,1979)[2],是植物区系地理学中研究的基本单位[3]。由于保护区内植物的调查采集及相关研究相对较少,导致目前对保护内的植物组成等信息掌握较少。……
