Contribution of remote sensing to crop monitoring in tropical zones

Todoroff Pierre, Kemp Jacobus. 2016. Contribution of remote sensing to crop monitoring in tropical zones. In : Land surface remote sensing in agriculture and forest. Baghdadi Nicolas (ed.), Zribi Mehrez (ed.). Londres : ISTE, 179-220. (Remote Sensing Observations of Continental Surfaces Set) ISBN 978-1-78548-103-1

https://doi.org/10.1016/B978-1-78548-103-1.50005-4

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Résumé : The benefits of remote sensing for observing crops have been widely shown through the success that it has had in top producing countries. It is omnipresent today in national and global systems for predicting large industrial crop harvests and in precision farming services. However, such systems are still not common enough to describe and quantify the traditional production of developing countries. The 2009 report on world agriculture by the International Assessment of Agricultural Science and Technology for Development demonstrates the central role that smallholder farmers play in feeding the global population. Census counts indicate that there are nearly 500 million small farms around the world, and that in Africa 90% of agricultural production comes from small family farms. Trend analysis further suggests that small farms are expected to continue dominating agricultural landscapes in developing countries, especially in Asia and Africa, for at least the next two or three decades. Moreover, because of new land subdivisions and the cultivation of new areas, the number of these farms continues to increase in many countries.

Mots-clés Agrovoc : forêt, forêt tropicale, terre agricole, utilisation des terres, télédétection, cartographie de l'utilisation des terres, cartographie de l'occupation du sol, couverture végétale, classification des terres, analyse d'image, petite exploitation agricole, paysage agricole, rendement des cultures, récolte, prévision de rendement