Original paper

Plant communities of several wadi types in the Tassili N'Ajjer, Central Sahara, Algeria

Benhouhou, Salima S.; Boucheneb, Nacé ra; Kerzabi, Quais; Sassi, Okba

Phytocoenologia Band 33 Heft 1 (2003), p. 49 - 69

published: Mar 14, 2003

DOI: 10.1127/0340-269X/2003/0033-0049

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Four plant communities present in different wadi types of the Tassili N'Ajjer are described. The wadis encompass the commonest geomorphological features encountered in desert wadis. These vary from deep sandy soils to rocky substrate through to gravelly-sandy and gravelly floors. An ordination applying detrended correspondence analysis highlighted the major geomorphological gradient at work, while a cluster analysis confirmed the existence of four groupings. A subsequent phytosociological description provides habitat preferences, floristic composition and the syntaxonomical hierarchy of the four associations. These are: Argyrolobio abyssinicum-Cymbopogonetum schoenanthi ass. nov. in rocky wadis, the Hippocrepido-Panicetum turgidum ass. nov. in gravelly wadis, the Artemisio glutinosae-Aristidetum pungentis ass. nov. in sandy-gravelly wadis and the Calligono-Aristidetum pungentis Quézel 1965 in sandy wadis.


desert vegetationgeomorphological unitsdetrended correspondence analysiscluster analysissyntaxonomy