1,721,187 research outputs found
Patterns and trends in tropical forest cover
No full textIn the 2005 edition of the Global Forest Resources Assessment of the Food and Agriculture Organization of the United
Nations, a moderate negative trend was reported regarding the change of tropical forests: the net annual change was estimated
at –11.8 million ha for the period 2000–2005, while the rate was –11.65 for the previous decade. Tropical Asia showed the
highest rate and most negative trend, passing from –0.8% to –0.96% per year. The remote sensing survey done for previous
Forest Resource Assessment editions covering the period 1980–2000 revealed distinct change processes in the three tropical
regions. Survey results indicated that socio-economic and cultural aspects that characterise and differentiate the geographic
regions determine the nature of the change processes and underlying cause–effect mechanisms, while the ecological setting
determines the intensity of change and reveals its environmental implications. A comparison of deforestation processes of
the two decades indicated an on-going process of “radicalisation” of the dynamics determined by an increasing frequency
of high-gradient changes (e.g. total clearing rather than fragmentation and degradation) and by a shift of deforestation fronts
towards wetter zones, with a consequent higher per-hectare carbon emission associated with deforested areas
Forest biomass for bioenergy: Opportunities and constraints for good governance. A case study from Italy
No full textFirst Mapping of the main High Conservation Value Forests (HCVFs) at national scale: the case of Italy
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Sous la direction de Lasserre Bruno, avec les contributions de Arlandis Jacques, Grewlich Klaus W., Padioleau Jean-Gustave et Soete Luc/Fondation Idate, Piloter la société de l'information. Action collective et intérêt européen
No full textRaynaud Marie-Laure. Sous la direction de Lasserre Bruno, avec les contributions de Arlandis Jacques, Grewlich Klaus W., Padioleau Jean-Gustave et Soete Luc/Fondation Idate, Piloter la société de l'information. Action collective et intérêt européen. In: Réseaux, volume 18, n°101, 2000. Questionner la société de l'information. p. 221
Detecting the influence of disturbance on temporal dynamics of decaying stumps in European beech and silver fir forest stands in Central Apennines (Molise, Italy)
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