A Legacy of Quantitative and Qualitative Data for the Irrigated Violada Area and Conterminous Lands in Aragon, Spain

This paper concerns an old soils report produced using an agronomical approach. The territory studied spans continuous parts of Spain's Huesca and Zaragoza provinces and includes the Violada area. The Spanish Ministry of Agriculture collected the data from 1975 to 1978 through its now-defunct agency, the National Institute for Agrarian Reform and Development (IRYDA), which was in charge of irrigation works in Spain. The surface area studied was 19,393 ha, with 67% irrigated by inundation and 33% rainfed at the time of the study. The survey and the related investigations were conducted using state-of-the-art procedures for agronomical research. The purpose was to rate the potential of the lands for irrigated agriculture. The document provides a unique snapshot of the soils and agriculture in the 1970s that can provide a baseline for multitemporal comparisons.