植物研究2024，Vol.44Issue(3)：330-340,11.DOI:10.7525/j.issn.1673-5102.2024.03.002
青海湖流域种子植物区系研究
Study on the Seed Flora of Qinghai Lake Basin,China
摘要
Abstract
Located in eastern Qinghai,China,the Qinghai Lake basin extends between latitudes 36°15′-38° 15′N and longitudes 97°50′-101°45′E at the transition zone between the Qinghai-xizang Plateau and the Loess Plateau,the elevations ranging from 3 160-4 953 m,and the total area encompasses 29 660 km2,and the climate is typified by the alpine continental variety.There were 823 species of seed plants,distributed across 231 genera of 61 families,accounting for 23.13%,62.89%and 38.82%of the total species,families and genera found in Qinghai respectively.The results of taxonomic analysis indicated that:(1)The density of species in every square kilometer was only 2.78,which was relatively poor compared to the numerous natural areas in the Tangut region.(2)Including the endemic plant species in China,99.00%of the fauna was temperate,which determined that the fauna was temperate in nature.(3)There were a few woody species,few ancient and primitive groups,yet the flora with perennial herbs as the core.(4)Some of the Chinese endemic species in this region were derived from their extensive relatives,which was a concrete embodiment of the young and derived nature of the region.(5)The North China Autonomous Region and the Southwest High Mountain Region both had different degrees of influence on this region.(6)There were few endemic genera,and the endemic species were primarily aquatic plants,showing the special evolution results of the unique and Hidden domain water wet environment of Qinghai Lake.(7)The core of China's endemic species belonged to the Gansu-Xizang-Sichuan subtype,which had the highest diversity of species.Within the subregion of plants on the Qinghai-xizang Plateau,this area belonged to the Tangut region.关键词
青海湖流域/植物区系/区系特征/区系分区Key words
Qinghai Lake basin/flora/floristic characteristics/floristic regionalization分类
农业科技引用本文复制引用
吴玉虎,庞哲,史惠兰..青海湖流域种子植物区系研究[J].植物研究,2024,44(3):330-340,11.基金项目
第二次青藏高原综合科学考察研究项目(2019QZKK0304-02,2019QZKK0302-02) （2019QZKK0304-02,2019QZKK0302-02）
国家自然科学基金专项项目(42041005) （42041005）
中国科学院青海省人民政府三江源国家公园联合研究专项(LHZX-2020-02). （LHZX-2020-02）
