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secondary salinization

drainage problem

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effect on irrigation

  • Asia
    In Asia: Effects of human activity on the soil

    …in Asia is that of secondary salinization. That process, which is a result of improper agricultural practices, is widespread in the soils of the arid, semiarid, and subhumid zones of Asia that are irrigated without appropriate drainage. Salt-affected soils account for large areas in Central Asia, South Asia, and Southwest…

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