5. CAUSES
Soil disturbance associated with
deforestation in Colombia has an President Virgilio Barco
impact on rivers such as Vargas initiated the Plan
the Orinoco and Meta through Pacifico development scheme
increased siltation and to develop the economy of
sedimentation that affects both Colombia's Pacific Coast in the
water levels and aquatic late 1980s with a major impact
biodiversity. on forest
6. Illegal drug cultivation in the Colombian
Andes has results in the removal of
some 100,000 acres (400 km2) of forest
annually. A National Police OV-10 plane
sprays herbicides over a coca field. Coca
cultivation is a leading cause of illegal
deforestation in Colombia.