Titre :
|
An inventory of salt-affected soils and waterlogged areas in the Nagarjunsagar canal command area of southern India, using space-borne multispectral data
|
Auteurs :
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B. Rao ;
R. Dwivedi ;
K. Sreenivas ;
AL Et
|
Type de document :
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article/chapitre/communication
|
Année de publication :
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1998
|
Format :
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p. 357-367
|
Langues:
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= Anglais
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Catégories :
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SCIENCES FONDAMENTALES ET APPLIQUEES
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Mots-clés:
|
SALINITE DU SOL
;
SOL HYDROMORPHE
;
PH
;
ZONE IRRIGUEE
;
TELEDETECTION
|
Résumé :
|
Information is presented on the nature, extent and spatial distribution of waterlogged areas and salt-affected soils, derived through systematic visual interpretation of standard false colour composite (FCC) prints on a 1:100000 scale generated from the Indian Remote Sensing Satellite (IRS-1B) Linear Imaging Self-scanning Sensor (LISS-I) and Landsat-Thematic Mapper (TM) data for the Nagarjunsagar Right Bank Canal Command Area, Andhra Pradesh. A total of 1710 ha of land in the coastal region has been found to be waterlogged. Salt-affected soils cover an area of 42800 ha, with saline-sodic soils covering 28480 ha emerging as the dominant category. To make optimal use of these lands and to prevent further degradation both preventive and ameliorative measures have been advocated.
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Source :
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Land Degradation & Development, vol.9
|