Geographic datasets supporting the N balance in four basins of semiarid saline wetlands in the Ebro Basin, NE, Spain

Description

We presented the background information for the study “An assessment of the N load from animal farms in saline wetland catchments in the Ebro Basin, NE Spain”. The studied wetlands basins are the: Saladas de Alcañiz-Calanda, Gallocanta Lake, Saladas de Sástago-Bujaraloz and Sariñena Lake. All the areas are catalogued in the Natura 2000 European Network, under the European Directives Birds (2009/147/EC) and Habitats (92/43/EEC), and are nitrates vulnerable areas according to the European Water Framework Directive (WFD, 91/676/EC) designation. The data presented here belong to the research projects AGROWET, funded by MCIN/AEI/10.13039/501100011033 and by the “European Union NextGeneration EU/PRTR”, and ISABEL, funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”. The dataset includes 4 compressed folders: “Saladas de Alcañiz-Calanda (ALC).zip”, “Gallocanta Lake (GA).zip”, “Saladas de Sastago-Bujaraloz (BU).zip” and “Sariñena Lake (SA).zip”. Each folder comprises fives GIS files generated in ArcGIS v.10.8: the “Watershed_name_of_basin”, “dem_name_of_basin”, “NVZ_name_of_basin” (Nitrate Vulnerable Zone), “Livestock_name_of_basin” and “Crop_name_of_basin”. “Watershed_name_of_basin” is a shape (polygon) delimited following the drainage divides with the help of the digital elevation model (DEM). “DEM_name_of_basin” is a raster file generated from the LiDAR data with a vertical accuracy of 2 m and a density of 0.5 points m2. “NVZ_name_of_basin” is a shape (polygon) downloaded from the National Spatial Data Infrastructure of the MITECO website (https://www.miteco.gob.es/es/cartografia-y-sig/ide/descargas/agua/zonas-vulnerables.html). “Livestock_name_of_basin” is a shape (point) of the livestock census collected as Table from the official administrative Register of Livestock Farms of Aragon, Spain (REGA), and it was available in the Open Data platform (https://opendata.aragon.es/). This shape presents a legend layer (.lyr). “Crop_name_of_basin” is a shape (polygon) based on the information provided by the farmer declarations in the context of the Common Agricultural Policy (CAP). This shape presents a legend layer with the declared crops grouped for a better spatial representation. The abovementioned geographic layers are map projected in the European Datum ETRS89/UTM zone 30N. The dataset includes an Excel spreadsheet “shape_attribute_info.xlsx” where the head columns of the attribute table of the shapes “livestock” and “crop” are explained. Apart from the basic information from the whole basins, we include the compressed folder named “Farnaca.zip” containing the geographic files used for the specific study of this area in the “Saladas de Sástago-Bujaraloz”: the shape (polygon) delimitating the study area (“area_farnaca”), and the slope of this polygon (“slope_farnaca”) with their corresponding legend layer.

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