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PPR chez LaFilleDeLaSardine www.flickr.com/groups/ppr-lafilledelasardine (récapitulatif) et lafilledelasardine.wordpress.com/2013/12/20/ppr-projet-ph... (thèmes)
1981 Ford Transit CI Travelhome camper.
15 previous keepers. Last taxed in April 2015 and last MoT test expired in September 2015.
Erosion caused by agriculture is a major cause of land degradation.
Excessive erosion (erosion above the rate of soil formation) is particularly concerning because while an inch of soil can take hundreds of years to form, under certain circumstances it can be swept away in just a few seasons.
In some areas, farmers are increasingly planting row crops instead of hay and pasture crops. This results in, particularly on sloping ground, more soil erosion because row crops tend to provide less complete cover of the ground, exposing it to more erosive forces.
Erosion also degrades the soil's structure, diminishes its water holding capacity, and increases its tendency to become compacted. As a consequence of these changes, runoff of water and soil increases.
Increased runoff and decreased water holding capacity in soils results in crops having less moisture available to them, which aggravates drought stress. In fact, lack of water storage capacity in eroded systems is often erosion's most damaging effect, particularly in drier regions where water is often the main limiting factor.
Much of this eroded sand and soil ends up in rivers and ultimately in the seas. Sediment loads in rivers can make some forms of life unable to live there, silt up spawning beds used by fish, degrade water quality for humans, and cause silting of productive estuaries and reservoirs.
Source: Patricia S. Muir, Oregon State University
Photo Credit: Rick Bohn / USFWS