News tagged with soil erosion

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UN warns 25 pct of world land highly degraded

(AP) -- The United Nations has completed the first-ever global assessment of the state of the planet's land resources, finding in a report Monday that a quarter of all land is highly degraded and warning the trend must be ...

Nov 28, 2011 5 / 5 (6) 1

GPS helps locate soil erosion pathways

Grassed waterways are placed in agricultural fields where runoff water tends to concentrate because they can substantially reduce soil erosion. Mapping techniques that help identify where erosion channels will likely form ...

Aug 13, 2009 3 / 5 (1) 0