Nom du corpus

Corpus Systématique Végétale

Titre du document

Studies on the succession of vegetation on some islands and sand banks in the nile near Khartoum, Sudan

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Syst_veg6_v2_030640
Auteur(s)
  • R. Halwagy
Affiliation(s)
  • Faculty of Science, University of Khartoum, Sudan
  • Faculty of Science, University of Alexandria, Moharram Bey, Alexandria, U.A.R.
Résumé

The main Nile near Khartoum contains a number of islands which differ in age, degree of soil stabilization, height in relation to flood-water mark and in the amount and composition of plant cover. These islands were studied with a view to understanding the sequence of colonization and succession. The initial stages occur on the newly exposed sand bars. A very thin vegetation cover of Tamarix nilotica occurs. The main habitat factor is soil mobility and the open soil texture. The successive stages are all characterized by a progressive increase of the silt content, an improvement of the water relations of the soil and greater soil stabilization. This improvement in soil conditions is associated with a distinct trend in the vegetation towards an increase in the number of species, the height of the tallest species and the amount of plant cover. The corresponding communities are: thin Glineto-Ambrosietum, Tamaricetum and Acacieto-Tamaricetum. The climax (or subclimax) occurs on the Nile banks and is represented by dense Acacietum. The role played by man in this succession is not clearly understood. The scanty evidence suggests that man's activities may be at least partly responsible for the succession of Tamaricetum by Acacieto-Tamaricetum.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
Identifiant ISTEX
1E804F19ADC56B9F3798B29EE8027EC10E37383D
Revue

Vegetatio

Année de publication
1963
Présence de XML structuré
Non
Score qualité du texte
9.364
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-035FGLGH-F
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