Abstract
Une étude en cours sur le delta du Zerafshan qui forme aujourd’hui l’oasis double de Boukhara et Qaraqöl, permet de comprendre l’évolution urbaine en milieu semi-aride en lien avec la gestion des ressources en eau. Afin de fixer la chronologie des paléocours, une première série de datations par OSL a été entreprise. À l’exception d’une branche datant du dernier maximum glaciaire, les autres ont été actives du Néolithique au début de l’âge du bronze, avec un déplacement général du nord-est vers le sud-ouest.An ongoing study on the Zerafshan delta, which now forms the double oasis of Bukhara and Qaraqöl, provides an understanding of urban evolution in a semi-arid environment linked to water resources management. In order to determine the chronology of the paleo-channels, a first series of OSL datings was undertaken. With the exception of one branch dating from the last glacial maximum, the others were active from the Neolithic to the early Bronze Age, with a general movement from north-east to south-west.
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