The Alps and Pyrenees are in large part deforested, but reafforestation with a view to minimizing the effects of avalanches and sudden floods is continually in progress.
Under de Quincey's administration the islands prospered; the cultivation of cotton and coffee was then begun, much of the land being deforested for this purpose - a deforestation practically completed when vanilla was introduced.
In the Washoe Mountains, as in the rest of the Sierra Nevada range, there is a heavy growth of conifers, extending down to the very valleys; but in many places these mountains have been almost deforested to provide timbers for the mines.
VEGETATION The region was originally a vast forest refuge for innumerable species, largely deforested during the 20 th century.
Vast tracts of the country have been, however, deforested by fire, and these are covered by the tall ineradicable grass, Imperata arundinacea.