Changes in vegetation composition and diversity in relation to morphometry, soil and grazing on a hyper-arid watershed in the central Saudi Arabia

Auteur(s) et Affiliation(s)

AL-ROWAILY, S.L.

Dept. of Plant Production, College of Food and Agriculture Sciences, King Saud Univ., Riyadh, Arabie Saoudite

EL-BANA, M.I.

Dept. of Plant Production, College of Food and Agriculture Sciences, King Saud Univ., Riyadh, Arabie Saoudite

Dept. of Biological Sciences, Fac. of Education, Suez Canal Univ., El-Arish, Egypte

AL-DUJAIN, F.A.R.

Dept. of Plant Production, College of Food and Agriculture Sciences, King Saud Univ., Riyadh, Arabie Saoudite

Description :
An evaluation of morphometric parameters is done in the hyper-arid Altwiqi watershed. Vegetation distribution is assessed in relation to morphometry, soil and grazing. The results suggest that : morphometric variables are the main determinants of vegetation structure; decreasing grazing improve hydrologic, soil and vegetation attributes; managing watershed by reducing grazing has positive feedback on ecosystem function.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2012, vol. 97, p. 41-49, nombre de pages : 9, Références bibliographiques : 89 ref.

Date :
2012

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais