Keywords |
  • Sustainable development

Leaching

Leaching is the transport of soil elements (sediment, fertilizer, pesticides, etc.) by surface water (rain).

This phenomenon has two consequences:

  • Depletion and deterioration of leached soil;
  • Pollution of watercourses and sedimentary deposits.

Some agricultural practices can favour or, conversely, fight this phenomenon: the direction of furrows, the presence of buffer zones, etc.

Diagram showing leaching and the role of buffer zones, downstream, in trapping elements that have been carried away. © Arpent nourricier CC by-sa Diagram showing leaching and the role of buffer zones, downstream, in trapping elements that have been carried away. © Arpent nourricier CC by-sa


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