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Nombre de programmes trouvés : 9216

le (7m35s)

EN-3. The paradigm of industrial agriculture and "green revolution"

Etienne Hainzelin comes back to the striking evolutions of the agricultural systems for hundred years, particularly in the rich countries. Today, this is an intensified agriculture, based on the supply of fertilizers and pesticides, and on the use of the 'elite' varieties. This transformation, which affected as the landscapes as the functioning of the human societies, also supported the progressive emergence of questionings about the compatibility between the high-yield agriculture and the preservation of ecosystems.
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le (11m5s)

EN-4. The cultivated or improved biodiversity

Etienne Hainzelin presents the main sorts of biodiversity which are linked to the agricultural systems: support biodiversity and destructive biodiversity. He focuses on the first one, and shows that, in the recent history, the human populations concentrated on some 'elite' varieties, as part of an high-yield agriculture, to the detriment of a specific and genetic diversity, which was raised and enriched over the centuries.
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