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Abstract

Les relations existant entre les indices de vegetation d'une part, et les differents parametres de la biomasse, tels que l'indice foliaire, la radiation photosynthetiquement active, le poids de matiere vegetale (poids total, grain) sont passees en revue. Ensuite, on s'interesse a differentes observations faites en conditions experimentales ou en vraie grandeur ayant trait a l'effet de l'integration temporelle et spatiale de l'indice de vegetation sur sa relation avec la production cerealiere, exprimee en termes de biomasse totale et de production de grain. Ces memes relations sont envisagees sous un angle plus theorique pour mettre en evidence les liens de causalite. Finalement, on s'interesse aux relations liant la production vegetale au rendement utile, dans un but de prevision precoce. Estimating Agricultural yields using vegetation indicesflR Reviews the relations between the vegetation indices and the biomass parameters such as the weight of vegetation matter and active photosyntheses radiation. Cereal production expressed in terms of total biomass and grain production are related to the indices of vegetation in experimental conditions. Causal links are established within a more theoretical framework. Finally, the author reviews the relations between vegetation production to useful yields with the aim of establishing early predictions.

Additional information

Authors: BARTHOLOME E JRC-ISPRA, JRC-ISPRA
Bibliographic Reference: AMELIORATION DES PROCEDURES D'ENQUETES AGRICOLES PAR LA TELEDETECTION, NIAMEY (NIGERIA), JUNE 15-19, 1987 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER F 33443 ORA
Availability: Can be ordered online
Record Number: 1989126050500 / Last updated on: 1989-03-01
Category: PUBLICATION
Available languages: fr
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