A conceptual framework for the assessment tropical secondary forest dynamics sustainable development potential in Asia
2001
J. Smith | U. Chokkalingam | W. de Jong | C. Sabogal
In this paper, we present an intensification modelbased on the intensity of exploitation and use of forests and forest lands as a relevantframework for analysing the appearance, dynamics, and evolution of different types ofsecondary forests. The systematic driving forces responsible for the disturbances andsubsequent secondary forest re-growth tend to change and evolve along this continuum.This dynamic, process-oriented, long-term framework draws on existing theories andmodels of the underlying factors of forest change relevant for tropical Asia, andemphasises factors related to secondary forests. We identify and characterise fourgeneral stages along this intensification continuum—the extensive use stage, theintensive exploitation stage, the forest depleted stage, and the forest recovery stage. Inthe extensive use stage, secondary forests tend to be limited and largely arise fromlong-rotation swidden agriculture. In the intensive exploitation stage, secondaryforests tend to increase in absolute and proportional area, and arise mainly out ofindustrial and local logging activities and fires. In the forest depleted stage, naturalforest cover is low and there is increasing interest in forest conservation, reforestationand sustainable management for timber, environmental and local needs. In theforest recovery stage, there is increased forest cover as a result of reforestationmeasures or regeneration with land use abandonment. This framework can help guidemanagement and policy options for secondary forests based on threats and relativeresource endowments, infrastructure, and the policy and institutional environmentpresent in each stage. It could also be used to identify effective intervention points andto anticipate and prevent problem situations beforehand.
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