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2016

Trees, forests and land use in drylands : The first global assessment

FAO

Titre : Trees, forests and land use in drylands : The first global assessment

Publisher  : FAO
Date de parution : 2016
Pages : 40

Résumé
Drylands cover about 41 percent of the Earth’s land surface and are home to 2 billion people, the majority of whom depend on forests and other wooded lands, grasslands and trees on farms for income and to meet basic needs. Yet surprising little is known about such ecosystems in drylands, despite widespread recognition of the need to restore drylands to cope with the effects of drought, desertification, land degradation and climate change. This document presents preliminary results of the first global assessment of trees, forests and land use in drylands. It reports, among other things, that the global drylands contain 1.11 billion hectares of forest, which is more than one-quarter of the global forest area. There are also about 13.5 billion trees outside forests in drylands. More than 200 experts with knowledge of the land and land uses in specific dryland regions conducted the assessment, using freely available satellite imagery and a newly developed survey methodology. The pioneering study by FAO and many partners will be fully reported later in 2016.

Mots Clés : dryland management ; forest monitoring and assessment ; desertification ; wind erosion ; water availability ; savannas ; semiarid zones ; forestry policies ; forestry statistics ; sustainable forestry ;

Présentation (FAO)

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Page publiée le 5 décembre 2016, mise à jour le 13 juin 2018