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Sistemas de projecção da disponibilidade de madeira e biomassa em Portugal

12/12/2017

Em Portugal, o aumento de procura de madeira e a ocorrência de incêndios florestais registados nas ultimas décadas levou à necessidade de avaliar a disponibilidade de madeira a longo prazo. Para dar resposta a estas necessidades, desenvolveu-se um simulador regional movido pela procura de madeira, SIMPLOT/StandsSIM.dd, que tem em conta outros factores como as alterações de uso do solo, a ocorrência de fogo e a gestão florestal. Este capítulo apresenta uma descrição detalhada desta ferramenta, utilizada no estudo prospectivo realizado para o sector florestal, encomendado pela AIFF.

Capítulo do livro Forest Inventory-based Projection Systems for Wood and Biomass Availability, da autoria das investigadoras Susana BarreiroMargarida Tomé.

 

Link do artigohttps://link.springer.com/chapter/10.1007%2F978-3-319-56201-8_22

 

ResumoThe forest sector gained relevance and importance in the Portuguese economy resulting from the expansion of maritime pine and eucalyptus forest areas. The growing importance of the forest-based sector promoted the enlargement/establishment of wood-based industries which increased the need for characterizing forest area and its resources. The first National Forest Inventory launched in the 1960s has been repeated every 10 years and has become all-encompassing and more detailed. Over the last decade, as a combined result of wood demand increase and wildfire occurrence, the raw material produced in Portugal ceased to satisfy current needs, and an increasing trend in wood imports was being observed. These led to the need to make long-term projections of forest resources and motivated the development of regional forest simulators capable of reflecting the availability of round-wood, taking into account numerous factors, namely: afforestation forest policies, the application of improved management schedules, hazards occurrence and uncertainties reflecting market demands. SIMPLOT, a regional simulator that uses National Forest Inventory (NFI) data as input was developed to assess woody biomass availability as well as carbon stock changes in Portuguese forests under alternative scenarios of wood and biomass demands, fire occurrence, Land Use Changes (LUC) and forest management. SIMPLOT forecasts have been used to assist in policy making as well as in the establishment of forest management strategies aiming at increasing forest productivity, and ultimately reverse the increasing import trends.