APPORT DES TECHNIQUES DE TELEDETECTION POUR L'INVENTAIRE DES SUPERFICIES CULTIVEES EN RIZ DANS LE BASSIN DU NIGER EN AMONT DU DELTA CENTRAL NIGERIEN
Remote sensing techniques were tested for the inventory of rice cultivated areas along the Niger river in Mali. A test-site covering approximately 13,000 ha was chosen in the Segou region. 200 km downstream of Bamako. The 1975 - 1976 agricultural campaign was selected according to available LANDSAT images and to data collected directly in the rice fields (used as ground truth). A map of land-use and more particularly of areas of rice cultivation was etablished. This was done by visual interpretation of a LANDSAT color composite and by numerical treatment of the same image in digital form. The advantages of the two methods, analog and digital, were assessed in terms of the field conditions encountered on the test site.
Références bibliographiques: AGRONOMIE, VOL. 3 (1983), NO. 10, PP. 1019-1026
Numéro d'enregistrement: 1989123025700 / Dernière mise à jour le: 1987-01-01
Langues disponibles: fr