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Spatial heterogeneity in hyper‐arid vegetation of the South Western Desert, Egypt

Mohamed G. Sheded, Usama Radwan, Mostafa A. Taher, Irina Springuel

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Abstract

Abstract A vegetation survey of 124 stands in the South Western Desert of Egypt identified 79 species of angiosperms belonging to 25 families. 54 species (68.3%) are annuals (including one hydrophyte) and 25 species (31.7%) are perennials. Grasses (Poaceae or Gramineae) contributed 21.5% of the total flora, considered the most dominant family in the South Western Desert. Two herbaceous species were recorded for the first time in this region: Eragrostis lepida and Enarthrocarpus pterocarpus. Eleven vegetation clusters were obtained and categorized into five distinct groups according to soil composition and chemical characteristics. The large number of weeds appears in the extreme arid desert due to the recent extensive and intensive anthropogenic effects. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Abstract A vegetation survey of 124 stands in the South Western Desert of Egypt identified 79 species of angiosperms belonging to 25 families. 54 species (68.3%) are annuals (including one hydrophyte) and 25 species (31.7%) are perennials. Grasses (Poaceae or Gramineae) contributed 21.5% of the total flora, considered the most dominant family in the South Western Desert. Two herbaceous species were recorded for the first time in this region: Eragrostis lepida and Enarthrocarpus pterocarpus. Eleven vegetation clusters were obtained and categorized into five distinct groups according to soil composition and chemical characteristics. The large number of weeds appears in the extreme arid desert due to the recent extensive and intensive anthropogenic effects. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Available abstract

Abstract A vegetation survey of 124 stands in the South Western Desert of Egypt identified 79 species of angiosperms belonging to 25 families. 54 species (68.3%) are annuals (including one hydrophyte) and 25 species (31.7%) are perennials. Grasses (Poaceae or Gramineae) contributed 21.5% of the total flora, considered the most dominant family in the South Western Desert. Two herbaceous species were recorded for the first time in this region: Eragrostis lepida and Enarthrocarpus pterocarpus. Eleven vegetation clusters were obtained and categorized into five distinct groups according to soil composition and chemical characteristics. The large number of weeds appears in the extreme arid desert due to the recent extensive and intensive anthropogenic effects. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Key concepts: Arid, Herbaceous plant, Eragrostis, Perennial plant, Vegetation (pathology), Desert (philosophy), Poaceae, Geography

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