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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.

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Soil biological dynamics in slash-and-burn agriculture

Exporter la citation

Studies of shifting cultivation and other slash-and-burn systems over the past 30 years have basically confirmed the conceptual model of carbon and nutrient cycling put forth by Nye and Greenland. The model stresses that soil biological processes should not be viewed in isolation but as an integral part of the system. There has been some progress in refining certain aspects of the model but most studies have merely provided more numbers for specific fluxes or pools in the cycle rather than the entire cycle. While these studies have reinforced the model of Nye and Greenland, they have not added much to understanding the controls or improving the predictive capacity that would allow improved management of slash-and-burn systems. Future studies should concentrate on controlling and manipulating certain components in the system and looking at the resulting changes in the other pools and processes in the system. Results from these types of studies can be combined with system models for simulating and comparing different management strategies.

DOI:
https://doi.org/10.1016/0167-8809(95)00653-2
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    Année de publication

    1996

    Auteurs

    Palm, C.A.; Swift, M.J.; Woomer, P.L.

    Langue

    English

    Mots clés

    shifting cultivation, soil biology, nutrient cycling

    Géographique

    Kenya

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