Dégradation des sols

natural or human activity that wears down landforms, making them less viable.

process by which human activity and natural processes damage land to the point that it can no longer support                 the local ecosystem. landform -

The decline in the quality of the land and its resources, commonly but not exclusively caused by inappropriate human usage. It includes soil degradation and the deterioration of natural vegetation, landscapes and water resources.

Reduction or loss of the biological or economic productivity and  complexity of rain-fed cropland, irrigated cropland, or range, pasture, forest or woodlands resulting  from natural processes, land us [..]

This is defined by the United Nations as a reduction or loss of the biologic or economic productivity and complexity of rain-fed cropland, irrigated cropland or range, pasture, forest, and woodland. In relation to the ELD Initiative, it corresponds to the reduction in the economic value of ecosystem services and goods derived from land as a result [..]

 The slow loss of function from a terrestrial ecosystem due to negative outside influences.

the loss of biological or economic productivity and complexity in croplands, pastures and woodlands; mainly due to climate variability and unsustainable human activity.

Deterioration of land quality or land forms resulting from natural phenomena or human activity.

Land degradation is the reduction in the capability of the land to produce benefits from a particular land use under a specific form of land management. (Douglas, M. 1994. Sustainable use of agricultu [..]