Estudio de la evolución de régimen hidrológico en zonas húmedas drenadas: los humedales del Cañizar (provincia de Teruel, España)

In the southern of Aragon there were two wetlands nowadays disappeared. The big- gest one was the Canizar of Villarquemado lake. With an area of 11.3 sq km, it was one of the largest freshwater wetlands of the Iberian Peninsula. The second one, the Canizar fl oodplain of Alba, has a smaller surface area of about 1 sq km. Nowadays, both humid areas do not exist and its beds has been used for agricultural activity. Unfortunately, there are no quantitative data about the hydrological regime of wetlands in the past. However, the study of the historical references about local climate and drainage works has allowed to characterize the wetlands hydrology since roman age.