Working in landscape archaeology: the social and territorial significance of the agricultural revolution in al-Andalus J  ´M  M  C  The agrarian transformations which took place in the Iberian Peninsula between the eighth and the tenth century are essential for an understanding of how al-Andalus came into being. These developments provided the basis of a social formation which developed into a tributary mode of production. This study is part of a research project that draws inspiration from the tenets of landscape archaeology. Studying historic landscapes as part of the material culture of past societies provides valuable information about cultures and the ways they express themselves in space. Introduction: theoretical proposal The fundamental goal of this paper is to demonstrate, or at least to argue, the importance for the rise of al-Andalus of the agrarian transformations taking place in the Iberian Peninsula between the eighth and the tenth centuries, and the development of Andalusi social formation as part of the tributary mode of production. The agricultural revolution in al-Andalus is best understood from the perspective of irrigated agricul- ture, although other technical innovations as well as peasant knowledge were also contributing factors. While the revolutionary basis was the artificial water supply, which allowed intervention in crops’ natural ger- mination processes, there were also important advances in the types of resources that were being applied to agriculture and the management of new techniques. For example, new plants were introduced from places geographically and climatically remote and foreign to the Mediterranean and new forms of intensive cultivation were developed. Many studies have been written on this subject since the important works by T. Glick and A. Watson. Three main themes have received T.F. Glick, Irrigation and Society in Medieval Valencia (Cambridge, ), Spanish translation published in Valencia in ; A. Watson, Agricultural Innovation in the Early Islamic World: The Early Medieval Europe   ()  ©  Blackwell Publishing Ltd,  Garsington Road, Oxford OXDQ, UK and  Main Street, Malden, MA , USA