安西极旱荒漠自然保护区双塔库区周边植被现状调查

本文通过对安西极旱荒漠自然保护区双塔库区周边的35个样方的植被进行实地调查,从植被组成、类型、盖度和生物量四个方面进行整理分析显示,区域植物种类丰富,以灌木居多,芦苇(Phragmites australis)、骆驼刺(Alhagi maurorum)、大叶白麻(Poacynum hendersonii)、合头草(Sympegma regelii)等是主要建群种;植被型组以荒漠为主,主要群系为骆驼刺荒漠群系;植被盖度属保护区内较高区域,最高的是芦苇沼泽群落,合头草荒漠群落最低;库区周边生态保护力度加大,上游来水量稳中有增,植被群落整体上趋于稳定状态。

A Survey of Vegetation Status in near Shuangta Reservoir Area of An'xi Extra-arid Desert Nature Reserve

In this research, 35 quadrats were located in the surrounding areas of Shuangta-reservoir of Anxi extra-arid desert national nature reserve to investigate plant composition, vegetation type, coverage and biomass. The results showed that, the study area are species -rich and mainly dominated by shrubs. Phragmites australis , Alhagi maurorum , Poacynum hendersonii and Sympegma regelii are the dominant species in the communities. Desert plants are the main vegetation type in which Alhagi maurorum is the main formation. The vegetation coverage is highest in Phragmites australis community, and lowest in Sympegma regelii community. However, the mean vegetation coverage of the study area belongs to the higher level across the whole reserve. Due to the intensified conservation efforts and the increased water supply from the upstream, the plant community was in a steady state.