CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR-ICRAF publie chaque année plus de 750 publications sur l’agroforesterie, les forêts et le changement climatique, la restauration des paysages, les droits, la politique forestière et bien d’autres sujets encore, et ce dans plusieurs langues. .

CIFOR-ICRAF s’attaque aux défis et aux opportunités locales tout en apportant des solutions aux problèmes mondiaux concernant les forêts, les paysages, les populations et la planète.

Nous fournissons des preuves et des solutions concrètes pour transformer l’utilisation des terres et la production alimentaire : conserver et restaurer les écosystèmes, répondre aux crises mondiales du climat, de la malnutrition, de la biodiversité et de la désertification. En bref, nous améliorons la vie des populations.

CIFOR–ICRAF publishes over 750 publications every year on agroforestry, forests and climate change, landscape restoration, rights, forest policy and much more – in multiple languages.

CIFOR–ICRAF addresses local challenges and opportunities while providing solutions to global problems for forests, landscapes, people and the planet.

We deliver actionable evidence and solutions to transform how land is used and how food is produced: conserving and restoring ecosystems, responding to the global climate, malnutrition, biodiversity and desertification crises. In short, improving people’s lives.

Sahel atlas of changing landscapes: tracing trends and variations in vegetation cover and soil condition

Exporter la citation

During the 1970s and 1980s the Sahel, a semi-arid savan- nah between the Sahara Desert and the Guinea moist sa- vannah, experienced severe droughts. The droughts had devastating consequences for this ecologically vulnerable transition region. Since the mid 1980s, however, rainfall and vegetation has largely recovered. The driving forces of the climate variations and the droughts are not fully under - stood. The views range from those blaming human caused land degradation driven by overgrazing and deforestation as the underlying forces, to those emphasizing the global climate system driven by annual to decadal changes in sea surface temperatures. The future of the Sahel ecosystem and the livelihoods of the farmers and herders depend on both the climate, and the ecosystem services that can be sustained by the soil and vegetation. Knowledge about both soil and vegetation processes and future climate is needed in combating land degradation in the Sahel, and for proper planning of agricultural and eco- nomic development. This atlas aims to illustrate a rigorous scientific basis for understanding processes of landscape change in the Sahel.
    Année de publication

    2012

    Auteurs

    Vågen, T-G.; Gumbricht T

    Langue

    English

    Mots clés

    ecology, landscape, soil, vegetation

    Géographique

    Mali, Mauritania, Senegal

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