To do this, we first verified the regularity or consistency of the information on management plans in the Timber Harvesting Authori- zations (Autorizações de Exploração Florestal – Autef) and authorized credits from logging issued by the State Secretariat for the Environment in Pará (Sema), for the period. We found that in 2011 the great majority (89%) of Autef plans were legally compliant, while 11% had inconsistencies, such as: i) area authorized in already logged area; ii) area authorized greater than the forest management area. The assessment also involved estimating the areas logged both legally (authorized) and illegally (not authorized) using NDFI images derived from Landsat satellite images. The results revealed that of the 81,092 hectares of forests logged in the period, 48,802 (60%) were not authorized by Sema as opposed to 32,290 hectares authorized (40%). Of the illegal logging, the great majority (72%) occurred in areas that were private, vacant or disputed; another 20% in land reform settlements; and only 8% in Protected Areas. Comparing the periods of August, 2009 to July, 2010 and August, 2010 to July, 2011 we observed a 38% reduction (30,139 hectares) in non-authorized logging and 22% (9,281 hectares) in authorized logging. Finally, we evaluated the quality of forest management performance in the State from August, 2009 to July, 2010 and August, 2010 to July, 2011 using NDFI images. We observed that the area under forest management decreased during these periods; good quality logging fell by 25,185 hectares (81%); intermediate quality logging fell by 15,454 hectares (29%) and logging with quality fell by 7,557 hectares (31%). For a general assessment of timber har- vesting status in the State, we utilized infor- mation from Sema control systems: Simlam (Integrated System for Licensing and Environmental Monitoring – Sistema Integrado de Licenciamento e Monitoramento Ambiental) and Sisflora (System for Sale and Transportation of Forest Products – Sistema de Comercialização e Transporte de Produtos Florestais)-, which were overlapped with information generated by Simex (System for Monitoring Timber Harvesting – Sistema de Monitoramento da Exploração Madeireira), developed by Imazon.
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This post was published on 20 de December de 2012
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