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close this bookIrrigation-Induced Salinity - A Growing Problem for Development and the Environment (World Bank, 1993)
close this folderGlobal magnitude of irrigation-induced salinity
View the document(introduction...)
View the documentA global survey of affected areas
View the documentThe world bank experience


Salinity buildup is a long degenerative process; initial manifestations may take as long as 15 or more years to appear after the introduction of irrigation. Because the advent of salinity, to the level that is clearly injurious to plant growth, often takes years, monitoring for its presence is often neglected by irrigation authorities. The general lack of monitoring of salinity-affected areas is clearly evidenced by the dearth of field level information on this topic. This section attempts review the available information in the extent of irrigation-induced salinity problems worldwide.