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Global warming dries up soil nutrient balance

Global warming will act as a catalyst for increased aridity and result in an imbalance of soil nutrients and decreased productivity in the world’s drylands, according to new research.

The study was conducted by a global team of scientists and found increased aridity can be associated with an increase in phosphorus and a decrease in carbon and nitrogen in the soil.

More than 200 dryland sites over 16 countries were studied by the team, covering every continent except Antarctica.

41% of the earth’s surface is covered by drylands, supporting 38% of the world’s population. But due to the increase in aridity and growing population, marginal lands will become less reliable yet more depended upon.

Read more at UNSW Australia

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  1. Caroline Copley


    Took a while to get on top of this so a bit late with the comment. Australia has probably experienced several hundred million years of evaporation such as when near Antarctica as part of Gondwana, and probably earlier during the Proterozoic when attached to the first Gondwana, due to extremes of cold and winds, and more recently in the last million or so years as we became a hot country, due to aridity. Evaporation is probably the dominant process in Australia over millions if not billons of years…

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