Management of variation in agro-ecosystems: the potential offered by agrodiversity

arid zones avenas avoine biodiversidad biodiversity cartamo carthame centeno cicer arietinum conservation de la nature conservation des ressources ecologia vegetal ecosistema ecosystems environmental protection formation fruits frutas germplasm conservation gestion des ressources graine de colza graine de lin hordeum vulgare hortalizas land use legume lens culinaris linaza linseed middle east moyen orient nature conservation oats oriente medio pisum sativum plant ecology protection de l'environnement rapeseed resource conservation resource management rye safflower seigle semilla de colza socioeconomic environment sostenibilidad sustainability training trigo utilisation des terres vegetables vicia faba wheats zone aride