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Book (series)AQUASTAT - Irrigation water requirement and water withdrawal by country
FAO AQUASTAT Reports
2012Also available in:
Agriculture, and especially irrigated agriculture, is the sector with by far the largest consumptive water use and water withdrawal. To estimate the pressure of irrigation on the available water resources AQUASTAT, FAO’s global information system on water and agriculture, has undertaken a major review of irrigation water requirement and water withdrawal for irrigation for 167 countries. Detailed irrigated crop calendars have been prepared by country. The improved methodology used has made it possible to show additional variables in the AQUASTAT database: water withdrawal for irrigation, irrigation water requirement, as well as harvested irrigated crop areas. Regional and country tables have been prepared on areas equipped for irrigation, actually irrigated areas, irrigated harvested crop areas, with special attention to irrigated cereals, and irrigated fodder and pasture, as well as water requirement ratios or irrigation efficiencies. The AQUASTAT database provides policy- and decisions-makers as well as the scientific community with a complete dataset containing reliable data, calculated in a uniform way, and comparable with each other at country level. -
DocumentAQUASTAT - Cooling water for energy generation and its impact on national-level water statistics 2011
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DocumentKey water resources statistics in AQUASTAT
FAO’s Global Information System on Water and Agriculture
2005Also available in:
No results found.This article describes the methodology used by AQUASTAT to assess natural and actual freshwater resources for the world by country. It deals with renewable water resources and concentrates mainly on the physical assessment of internal and external resources. It presents a picture of the state of the world’s water resources that is not only the natural state but also the current situation, taking into account existing uses of water and their implications for countries sharing river basins. Much remains to be done in order to obtain sound statistics on water resources, and particularly standardized data sets, at global level. This article presents some reflections in this sense. Submitted for IWG-Env, International Work Session on Water Statistics, Vienna, June 20-22 2005.
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