Titre : |
Agricultural statistics and space images in Madagascar : estimation of second rice season acreage in a sub-prefecture |
Type de document : |
texte imprimé |
Auteurs : |
Haja Andrianasolo, |
Editeur : |
ERIM |
Année de publication : |
1988 |
Importance : |
p. 1143-1146 |
Présentation : |
10 réf. |
Catégories : |
SCIENCES AGRICOLES
|
Mots-clés : |
MADAGASIKARA ANALYSE DISCRIMINANTE MAROVOAY (ZONE) MAHAJANGA TELEDETECTION AGRICULTURE TRAITEMENT IMAGE RECOLTE PREVISION ORYZA |
Résumé : |
Space images are of great interest, particurlarly for acreages estimation of crops in agricultural statistics. But their use in an operational way can't be done without some problems, mainly those about costs, for developping countries. So must be found a way of reducing these three kinds of costs. It means that the appropriate method must be able to supply results on some area, even if it is not covered by all the images used. The author's approach tends to this, and comprises the following steps : 1) selection of a representative image, 2) selection of a date where most of the crops of a year are present, 3) stratification of the studied area, 4) construction of parameters for pattern (crops) recognition, 5) estimation of crops acreage in some area |
Note de contenu : |
Opération de recherche ATOB SA |
Niveau Bibliographique : |
2 |
Indicateur Bibliographique : |
K |
Bull1 (Theme principale) : |
METHODES DE RELEVE |
Agricultural statistics and space images in Madagascar : estimation of second rice season acreage in a sub-prefecture [texte imprimé] / Haja Andrianasolo, . - ERIM, 1988 . - p. 1143-1146 : 10 réf.
Catégories : |
SCIENCES AGRICOLES
|
Mots-clés : |
MADAGASIKARA ANALYSE DISCRIMINANTE MAROVOAY (ZONE) MAHAJANGA TELEDETECTION AGRICULTURE TRAITEMENT IMAGE RECOLTE PREVISION ORYZA |
Résumé : |
Space images are of great interest, particurlarly for acreages estimation of crops in agricultural statistics. But their use in an operational way can't be done without some problems, mainly those about costs, for developping countries. So must be found a way of reducing these three kinds of costs. It means that the appropriate method must be able to supply results on some area, even if it is not covered by all the images used. The author's approach tends to this, and comprises the following steps : 1) selection of a representative image, 2) selection of a date where most of the crops of a year are present, 3) stratification of the studied area, 4) construction of parameters for pattern (crops) recognition, 5) estimation of crops acreage in some area |
Note de contenu : |
Opération de recherche ATOB SA |
Niveau Bibliographique : |
2 |
Indicateur Bibliographique : |
K |
Bull1 (Theme principale) : |
METHODES DE RELEVE |
|