Root Zone Salinity Management using Fractional Skimming Wells with Pressurized Irrigation: Proceedings of the Year-End Seminar 2000

Muhammad Asghar, M S Shafique, S Ahmed, M A Kahlown

    Research output: Book/ReportBook

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    Abstract

    In the short water supply environment of Pakistan, farmers try to minimize the gap between demand and supply of canal water by extracting groundwater for irrigation purposes. However, saline groundwater upconing may occur in response to fresh groundwater withdrawals from unconfined aquifer underlain by salty groundwater. Skimming well technology can help in controlling this upconing phenomenon. However,in most cases, the small discharges of such wells cannot be efficiently applied on surface irrigated croplands.Pressurized irrigation application systems use small discharge effectively, but the cost and availability of equipment in the local market is a significant constraint. Root zone salinity is also expected to increase if this skimmed groundwater is used for irrigation purposes, particularly in the absence of proper salinity management practices.
    Original languageEnglish
    Place of PublicationPakistan
    PublisherIWMI
    Number of pages144
    ISBN (Print)9290904674
    Publication statusPublished - 2002

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