Mots-clés
Domaine aride Domaine semi-aride Ganga Inde Micromorphologie Microtopographie Minéralogie Néotectonique Plaine alluviale Propriétés du sol Punjab Pédogenèse Sol salin Sol sodique Uttar Pradesh Alluvial plain Arid area Ganges River India Micromorphology Mineralogy Neotectonics Pedogenesis Saline soil Semi-arid area Soil properties UttarPradeshRole of microtopography in the formation of sodic soils in the semi-arid part of the Indo-Gangetic Plains, India
Auteurs :PAL, D.K.
SRIVASTAVA, P.
DURGE, S.L.
BHATTACHARYYA, T.
Description :
In the northwestern part of the Indo-Gangetic Plains (IGP), India, non-sodic and moderately sodic soils occur on microhigh (MH) and highly sodic soils on microlow (ML) position under a semi-arid climate. The main soil-forming processes have been clay illuviation, deposition of pedogenic calcium carbonate and concomitant development of sodicity. The semi-arid climate and topography interact to facilitate greater penetration of bicarbonate-rich water in microlow than microhigh positions. It seems that the neotectonics have caused the microtopographical variations that control the formation of sodic soils.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2003, vol. 51, n°. 1, p. 3-31, nombre de pages : 29, Collation : Illustration, Références bibliographiques : 65 ref.
Date :
2003
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)