Community Ecology

, Volume 5, Issue 2, pp 163–176 | Cite as

Vegetation diversity in natural and agro-ecosystems of arid lands

  • A. K. HegazyEmail author
  • G. M. Fahmy
  • M. I. Ali
  • N. H. Gomaa


Vegetation in natural desert and agro-ecosystems was investigated in the middle sector of Egypt. The vegetation was classified by the Two Way Indicator Species Analysis technique (TW1NSPAN) into nine vegetational groups representing seven habitat types: desert, fallow land, winter crops of old cultivated land, summer crops of old cultivated land, Citrus orchards, winter crops of reclaimed land, and summer crops of reclaimed land. Detrended Canonical Correspondence Analysis (DCCA) demonstrates that soil factors especially soil texture, CaCO3, organic carbon and electric conductivity contribute significantly to the distribution of species. In all habitat types, species diversity is higher in winter than in summer season. The weed species diversity is greater in the reclaimed areas compared to the old cultivated land and in winter crops than in summer ones.


Desert Diversity Egypt Vegetation Weeds 



Two Way Indicator Species Analysis


Detrended Correspondence Analysis


Detrended Canonical Correspondence Analysis.


Täckholm (1974) and Boulos (1995, 1999, 2000 and 2002) 


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© Akadémiai Kiadó, Budapest 2004

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Authors and Affiliations

  • A. K. Hegazy
    • 1
    Email author
  • G. M. Fahmy
    • 1
  • M. I. Ali
    • 1
  • N. H. Gomaa
    • 2
  1. 1.Department of Botany, Faculty of ScienceCairo UniversityGizaEgypt
  2. 2.Department of BotanyFaculty of ScienceBeni-SuefEgypt

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