Read the information below about a cotton-growing area near Bahawalpur. Farmers report that yields have fallen after repeated use of flood irrigation and ch...
Question 1 Report
Read the information below about a cotton-growing area near Bahawalpur. Farmers report that yields have fallen after repeated use of flood irrigation and chemical fertiliser. An agricultural extension officer is testing methods that use less water while maintaining production for Pakistan's textile trade.
(a) Identify one reason why cotton is economically important to Pakistan. [1]
(b) Explain why flood irrigation can be unsustainable in a dry climate. [2]
(c) Suggest one change that could reduce water use on these farms. [2]
Answer Details
(a) It supplies the textile industry / earns export income / provides employment [1]. (b) Much water is lost by evaporation or seepage [1]; excessive abstraction can reduce scarce groundwater or river water available for other users [1]. (c) Drip irrigation / sprinkler irrigation / watering at cooler times / lining channels, with a linked reduction in water loss [2].
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