Dépliant promotionnel sur le rapport sur la Situation des forêts du monde 2016.

An international journal of forestry and forest industries

L’Évaluation des ressources forestières mondiales 2015 est le fruit d’un effort collectif des pays, ayant impliqué quelque 300 correspondants nationaux, la FAO et ses partenaires. Mis en oeuvre par six partenaires dans le cadre de divers processus, le Questionnaire concerté sur les ressources forestières couvre 88 pour cent des forêts mondiales. Cette collaboration permet d’améliorer la cohérence des données tout en réduisant le fardeau des pays quant à l’établissement des rapports.

Revista internacional de silvicultura e industrias forestales

As atividades relacionadas à produção agrícola estão entre as que mais têm gerado impactos sobre o meio ambiente. A produção intensiva é grande consumidora de energia, além de fonte de contaminação da água, ar e solo, por meio, especialmente, de resíduos de pesticidas e de fertilizantes. A expansão das fronteiras agrícolas aumenta as taxas de desmatamento, agrava os processos de degradação do solo e põe em risco a biodiversidade.

As atividades relacionadas à produção agrícola estão entre as que mais têm gerado impactos sobre o meio ambiente. A produção intensiva é grande consumidora de energia, além de fonte de contaminação da água, ar e solo, por meio, especialmente, de resíduos de pesticidas e de fertilizantes. A expansão das fronteiras agrícolas aumenta as taxas de desmatamento, agrava os processos de degradação do solo e põe em risco a biodiversidade.

A Educação Ambiental surge como política pública no
Brasil com o estabelecimento da Política Nacional
de Meio Ambiente – PNMA (Lei nº 6.938, de 1981),
no contexto da Conferência Intergovernamental de Educação Ambiental de Tbilisi (1977), que destacou o processo educativo como dinâmico, integrativo, permanente e transformador, justamente porque possibilita a aquisição de conhecimentos e habilidades de forma participativa. Desde então, outros marcos legais foram estabelecidos.

A growing body of evidence suggests that criminal activities associated with drug trafficking networks are a progressively important driver of forest loss in Central America. However, the scale at which drug trafficking represents a driver of forest loss is not presently known. We estimated the degree to which narcotics trafficking may contribute to forest loss using an unsupervised spatial clustering of 15 spatial and temporal forest loss patch metrics developed from global forest change data.

Miombo woodlands in Southern Africa are experiencing accelerated changes due to natural and anthropogenic disturbances. In order to formulate sustainable woodland management strategies in the Miombo ecosystem, timely and up-to-date land cover information is required. Recent advances in remote sensing technology have improved land cover mapping in tropical evergreen ecosystems. However, woodland cover mapping remains a challenge in the Miombo ecosystem.

Madagascar is renowned for the loss of the forested habitat of lemurs and other species endemic to the island. Less well known is that in the highlands, a region often described as an environmental “basket-case” of fire-degraded, eroded grasslands, woody cover has been increasing for decades. Using information derived from publically available high- and medium-resolution satellites, this study characterizes tree cover dynamics in the highlands of Madagascar over the past two decades.

Lao People’s Democratic Republic (PDR) has been experiencing significant forest depletion since the 1980s, but there is little evidence to demonstrate the major causes and underlying drivers for the forest cover changes. In this study, we investigated the relationship between forest cover decrease and increase in the south of Lao PDR between 2006 and 2012 and selected physical and socio-economic factors.

Community-managed reserves (CMRs) comprise the fastest-growing category of protected areas throughout the tropics. CMRs represent a compromise between advocates of nature conservation and advocates of human development. We ask whether CMRs succeed in achieving the goals of either. A fixed reserve area can produce only a finite resource supply, whereas human populations exploiting them tend to expand rapidly while adopting high-impact technologies to satisfy rising aspirations. Intentions behind the establishment of CMRs may be admirable, but represent an ideal rarely achieved.