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| | Unasylva - No. 163 - Forestry and environment - The Amazon challenge |
 | | In many pasts of the subregion, however, increased demographic pressure, unplanned use of soil and vegetation, continuous migration both into and from the region, and the concentration of land ownership and use rights, have set off a progressive deterioration process. |
 | | Poorly planned settlements, and efforts to produce short-cycle commercial crops or raise cattle (often driven by financial incentives), have contributed to the accelerated degradation of some areas of the region, especially Ceja de Selva in Peru; Rondonia and Acre in Brazil; northeastern Ecuador, and Ariari, Caquet and Putumayo in Colombia. |
 | | Deforestation up to 1985 has been estimated at 79.6 million ha (12.6 percent of the forest area), with an annual increase of 4.1 million ha since 1980. |
| www.fao.org /docrep/u0700E/u0700E06.htm (2435 words) |
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