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How are agricultural policies and practices related to the world water shortage?

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  • 1 decade ago
    Favorite Answer

    Lots of ways. Think California for a start. They plant vegetables on thousands of acres of near desert and irrigate it from the Colorado River. when there is a drought or a season of lower than normal snowfall in the mountains, the crops suffer and you pay more at the grocery store. Also, when land is cleared, as in Africa, for agriculture, the loss of trees and grasses leads to erosion and run off. The water doesn't soak in the ground. It runs off into the rivers. There isn't so much a shortage of water as there is probably going to be a critical shortage of drinkable water. Water that runs off from irrigation has fertilizer and salts in it and is not reclaimed as drinkable water.

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  • rofe
    Lv 5
    1 decade ago

    The world has no water shortage. We have as much water now as we had when the dinosaurs walked the earth, or maybe more, since there was more tied up in the biomass then.

    Agriculture does harvest and store water in crop production but that is released as the crops are consumed, used or rotted. We may alter the water cycle some with cropping practices but total water supply is relative stable and I see no shortage.

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  • 1 decade ago

    accordingly,our farmers have a tendency to over irrigate their lands.

    and they concentrate on digging wells for more and more water

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