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.

Farmer nurseries as a catalyst for developing sustainable land use systems in southern Africa. Part A: Nursery productivity and organization

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Trees play a critical role in the development of sustainable land use systems in the southern Africa region, but access to tree germplasm is limited. It was hypothesized that facilitating the establishment of farmer nurseries would promote decentralized tree seedling production in an efficient way, while at the same time provide opportunities for building natural, human and social capital. A study was conducted in Malawi, Zambia and Tanzania over 2 years to analyze the productivity of farmer nurseries and their functions in sustainable development. With limited outside support, farmers produced an estimated 6.2 million tree seedlings from 1901 nurseries across the three study areas over two years. Productivity of nurseries depended greatly on access to scarce water sources during the dry season. Farmers located the majority of nurseries therefore in ecologically sensitive dambo locations and along riverbanks, both posing possible land use conflicts in the future due to increasing human populations. Farmers organized two types of nurseries, with group nurseries producing significantly fewer tree seedlings compared to individual nurseries. This was attributed to larger transaction costs associated with organization and capacity building of group nurseries. On the other hand, the success of individual nurseries appeared to depend on human and social “start-up” capital being provided by group nurseries through previous training. In the absence of rigorous valuation of the longer-term effects of both types of nurseries in building natural, human and social capital, it appears that both have a role to play in meeting local demand for tree seedlings. Results generally suggest that smallholder farmers can play a pivotal role in providing tree germplasm for the development of sustainable land use systems.

DOI:
https://doi.org/10.1016/S0308-521X(02)00185-3
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    Année de publication

    2003

    Auteurs

    Böhringer, A.; Ayuk, E.; Katanga, R.; Ruvuga, S.

    Langue

    English

    Mots clés

    land use, tree nursery, farmers, sustainable management, land management

    Géographique

    Tanzania, Zambia, Malawi

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