Translate the following English sentence to French:
"Mountain and forest areas, especially in the Mediterranean, have been seriously damaged by deforestation, fire, erosion desertification, abandonment, abuse and inadequate reforestation, with the result that tens of thousands of acres of forest land have been lost."
Ces dernières années, les massifs forestiers, notamment ceux du bassin méditerranéen, ont gravement été touchés par le déboisement, les incendies, la désertification, l' abandon, l' exploitation abusive, l' insuffisant reboisement, ce qui a abouti à la perte de dizaines de milliers d' hectares précieux de superficies boisées.