Percentage of irrigated area serviced by groundwater (Global)

Global Map of Irrigation Areas - Version 5 Grid with percentage of area equipped for irrigation with a spatial resolution of 5 arc minutes or 0.083333 decimal degrees. This dataset is developed in the framework of the AQUASTAT Programme of the Land and Water Division of the Food and Agriculture Organization of the United Nations and the Rheinische Friedrich-Wilhems University, Germany. The map shows the amount of area equipped for irrigation around the year 2005 in percentage of the total area on a raster with a resolution of 5 minutes. Additional map layers show the percentage of the area equipped for irrigation that was actually used for irrigation and the percentages of the area equipped for irrigation that was irrigated with groundwater, surface water or non-conventional sources of water. In details, the following products have been released and made available for download: - Area equipped for irrigation expressed as percentage of total area: total=aei, surface water=aeisw, groundwater=aeigw, non-conventional sources of water=aeinc (ASCII-grid); - Area actually irrigated expressed as percentage of area equipped for irrigation (ASCII-grid); - Area equipped for irrigation expressed in hectares per cell (ASCII-grid); - Irrigated areas v.5 (ESRI shapefile); - High and low resolution images (PDF); - Quality Assessment (Excel) Due to the map generation method, the quality of the map can never be uniform. The overall quality of the map depends heavily on the individual quality of the data for the different countries. **Data revision:** 2013-10-07 **Supplemental Information:** The maps are generated as a grid with a cellsize of 5 arc minutes. For the GIS-users the maps are distributed in two different formats: as a zipped ASCII-grid that can be easily imported in most GIS-software that support rasters or grids; and, to accommodate people who use GIS-software that doesn't support rasters or grids, as a zipped ESRI shape file. The non-GIS-users can download the map as PDF-file in two different resolutions. **Citation:** Users are requested to refer to the map as follows: "Stefan Siebert, Verena Henrich, Karen Frenken and Jacob Burke (2013). Global Map of Irrigation Areas version 5. Rheinische Friedrich-Wilhelms-University, Bonn, Germany / Food and Agriculture Organization of the United Nations, Rome, Italy". **Contact points:** Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Data lineage:** Due to the map generation method, the quality of the map can never be uniform. The overall quality of the map depends heavily on the individual quality of the data for the different countries. **Resource constraints:** This work is made available under the Creative Commons Attribution 4.0 International license (CC-BY-4.0) **Online resources:** Global Map of Irrigation Areas (GMIA) on the AQUASTAT website Download - Global area equipped for irrigation expressed as percentage of total area - Raster (ASCII-grid, 2.3 MB) Download - Global area equipped for irrigation expressed in hectares per cell - Raster (ASCII-grid, 2.3 MB) Download - Global Map of Irrigation Areas v.5 - Vector (ESRI shapefile, 4 MB) Download - Global Map of Irrigation Areas v.5 - All files Download - Global Map of Irrigation Areas v.5 - High resolution image (PDF, 3.1 MB) Download - Global Map of Irrigation Areas v.5 - Low resolution image (PDF, 0.9 MB)

This map shows the extent of land area equipped for irrigation -expressed as percentage- around the turn of the 20th century according to the Global Map of Irrigation Areas (version 4.0.1), together with areas of rainfed agriculture. Data are available from AQUASTAT - programme of the Land and Water Division of the Food and Agriculture Organization of the United Nations. **Data publication:** 2010-10-28 **Contact points:** Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Data lineage:** The spatial datasets used to produce this map are: - The global map of irrigation areas at 5 arc-min (Siebert et al., 2007) - The cropland categories of the global agricultural systems map (SOLAW report "Managing Systems at Risk", map 1.3). **Resource constraints:** copyright **Online resources:** SOLAW website Download- Percentage of area equipped for irrigation (ESRI GRID) GMIA page on AQUASTAT

This map represents the spatial distribution of land under irrigation which is affected by some degree of salinization. It was produced by combining FAO AQUASTAT country statistics regarding irrigated areas affected by salinization with spatial information on irrigated areas where precipitation is not sufficient to leach away salt residues that are built up in the soil due to irrigation. It was assumed that the risk of salinization of irrigated areas can occur only in areas with an Aridity Index lower than 0.65 (where the Aridity Index is defined as Yearly Precipitation divided by Yearly Reference Evapotranspiration). **Data publication:** 2010-11-08 **Contact points:** Resource Contact: [Jippe Hoogeveen](mailto:Jippe.Hoogeveen@fao.org) Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Data lineage:** By combining the Global Map of Irrigation Areas with the spatially distributed Aridity Index, irrigated areas could be identified as potentially at risk of salinization. The AQUASTAT country statistics on areas salinized by irrigation were distributed over the irrigated areas at risk of salinization to obtain the map with the "extent of irrigated areas affected by salinization". Source data: -Global Map of Aridity at 10 arc-min (FAO) -Global map of irrigation areas at 5 arc-min (Siebert et al., 2007) The legend indicates the share of land affected by salinization in each pixel. **Resource constraints:** This work is made available under the Creative Commons Attribution 4.0 International license (CC-BY-4.0) **Online resources:** SOLAW website FAO AQUASTAT website

This map builds upon work done by Dixon (Dixon et al., 2001) in an attempt to propose a general classification of major farming systems. Based on a combination of global dataset, the map proposes a harmonized classification of major agricultural systems used as the basis for the analysis of SOLAW's Systems at risk. The map is based on an interpretation of global land cover data, combined with thematic datasets showing irrigated land and paddy rice extent. The map is published in SOLAW Report: The state of the world's land and water resources for food and agriculture - Managing systems at risk (2011) and SOLAW Thematic Report 15: Sustainable options for addressing land and water problems - a problem tree and case studies (links in the online resources section). **Data publication:** 2010-11-02 **Contact points:** Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) Resource Contact: [Jippe Hoogeveen](mailto:Jippe.Hoogeveen@fao.org) Resource Contact: Hubert George FAO-UN Land and Water Division **Data lineage:** The spatial datasets used for the production of this map consist of: - GLOBCOVER, global land-cover map for the year 2005 at http://www.gofc-gold.uni-jena.de/sites/globcover.php - Paddy rice systems (Ellis and Ramankutty, 2008) - Median altitude and thermal climates (both datasets are part of the GAEZ v3.0 (IIASA/FAO, 2010) - Global Map of Irrigation Areas v4.0.1 at 5 arc-min (Siebert at al., 2007) - Global Map of Aridity at 10 arc-min (FAO) - Global Administrative Unit Layers (GAUL 2008) - FAO’s Global Livestock Production and Health Atlas (GLiPHA, available at: http://www.fao.org/ag/againfo/home/en/news_archive/AGA_in_action/glipha.html) - FAO’s Agro-MAPS, available at (http://kids.fao.org/agromaps/) **Resource constraints:** This work is made available under the Creative Commons Attribution 4.0 International licence (CC-BY-4.0) **Online resources:** SOLAW website Download - Agricultural systems (ESRI GRID) Download - Agricultural systems - (ASCII grid with Vat table and class codes) Download - Agricultural systems (GeoTiff) The state of the world's land and water resources for food and agriculture - Managing systems at risk. Sustainable options for addressing land and water problems - a problem tree and case studies.

This map provides a global representation of proportion of freshwater withdrawal for the Agriculture sector (VA) over the total freshwater withdrawal (TWW) per major river basins for year 2018. The analysis is based on the national water withdrawal data available in AQUASTAT for year 2018. Here below the formula applied: VA _PERC = VA / TWW Where: VA = Freshwater withdrawal for the Agriculture sector (million m3) TWW = Total freshwater withdrawal (million m3) VA_PERC = Proportion of the freshwater withdrawal for the Agriculture over the total freshwater withdrawal (%) **Data publication:** 2022-03-11 **Contact points:** Resource Contact: [Riccardo Biancalani](mailto:riccardo.biancalani@fao.org) Resource Contact: [Michela Marinelli](mailto:michela.marinelli@fao.org) Metadata Contact: [AQUASTAT](mailto:aquastat@fao.org) **Resource constraints:** Creative Commons Attribution-NonCommercial-ShareAlike 3.0 IGO (CC BY-NC- SA 3.0 IGO) **Online resources:** Download: Proportion of freshwater withdrawal for the Agriculture sector per major river basin (2018)

Overview This layer, prepared by the Commission for Environmental Cooperation (CEC), shows the percentage of the total land area that was equipped for irrigation, around the year 2000. Irrigation is the practice of applying water to land to promote the growth of vegetation such as crops and pastures. The land area actually irrigated is unknown but was smaller than the amount equipped for irrigation. The data are derived from the Global Map of Irrigation Areas, version 4.0.1, produced by the Johann Wolfgang Goethe University, Frankfurt am Main, Germany, and the Food and Agriculture Organization of the United Nations (FAO), Rome, Italy. Geographic Coverage The coverage spans North America, including Canada, Mexico, and the United States. Data Sources and Licensing Commission for Environmental Cooperation (CEC). Siebert, S., P. Döll, S. Feick, J. Hoogeveen and K. Frenken. 2007. Global map of irrigation areas, version 4.0.1. Johann Wolfgang Goethe University, Frankfurt am Main, Germany / Food and Agriculture Organization of the United Nations, Rome, Italy. The data is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing redistribution and adaptation with appropriate attribution. Update frequency: Not Planned Limitations of use: None. Acknowledgement of the Commission for Environmental Cooperation and (or) the Food and Agriculture Organization of the United Nations (FAO) – Global Information System on Water and Agriculture would be appreciated in products derived from these data. Vintage: 2000 Applications (Intended Use) Assessing the extent and distribution of irrigated agriculture across North America. Water resource and agricultural planning. Supporting research and education on land and water use for agriculture. Cross-border environmental cooperation and reporting among North American nations. Files Download