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首页> 美国卫生研究院文献>Saudi Journal of Biological Sciences >Floristic diversity and vegetation analysis of Wadi Arar: A typical desert Wadi of the Northern Border region of Saudi Arabia
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Floristic diversity and vegetation analysis of Wadi Arar: A typical desert Wadi of the Northern Border region of Saudi Arabia

机译：瓦迪亚拉尔的植物多样性和植被分析：沙特阿拉伯北部边境地区的典型沙漠瓦迪

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摘要

Wadi Arar in the Northern border region of Saudi Arabia is one of the most important Wadis of the Kingdom. The present study provides an analysis of vegetation types, life forms, as well as floristic categories and species distribution. A total of 196 species representing 31 families of vascular plants were recorded. Compositae, Gramineae and Leguminosae were the most common families. Therophytes and chamaephytes are the most frequent life forms, indicating typical desert spectrum vegetation. The distribution of these species in the different sectors of the Wadi as well as the phytochoria for the recorded species is provided. Ninety-one species (46.5%) are typical bi-regional. Furthermore, about 105 species (53.5%) are mono- or pluriregional taxa. The highest number of species (136 or 69.5%) was recorded for annual plants, while the lowest number of species (60% or 30.5%) was recorded for perennial, short perennial or annual to biennial species.
机译：沙特阿拉伯北部边境地区的瓦迪阿拉尔（Wadi Arar）是沙特阿拉伯最重要的瓦迪斯之一。本研究提供了对植被类型，生命形式以及植物区系和物种分布的分析。总共记录了代表31种维管植物的196种。菊科，禾本科和豆科是最常见的科。附生植物和生植物是最常见的生命形式，表明典型的沙漠光谱植被。提供了这些物种在瓦迪地区不同区域的分布以及所记录物种的植物脉络膜。共有91个物种（46.5％）是典型的双区域物种。此外，大约有105种（53.5％）是单地区或多地区的分类单元。一年生植物的物种数量最高（136种或69.5％），而多年生，短年生或一年至两年期的物种数量最低（60％或30.5％）。

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