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.

Dynamique de la forêt mixte à diptérocaroacées de basse altitude avant et après traitement sylvicole

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As part of the STREK project, forest dynamics were analysed to assess the impact of logging, especially relatively environment-friendly techniques, and the potential benefits of silvicultural regimes that favour the growth of commercial species. The study was mainly focused on growth and mortality rates, especially concerning species of the Dipterocarpaceae family, which represents 25% of the trees in the stand and literally all of the commercial species. Productivity of the primary forest was found to be lower than 1m3/ha/year. Dipterocarpaceae species had the highest growth rates. Growth and mortality rates were dependent on the stand density, tree diameterm the size and shape of the canopy, which is an indicator of between tree-competition. The conditions were most detrimental to small-diameter trees. Two years after logging, productivity in the logged plot was as low as in the primary forest. The reforestation process in not yet under way. However, forest degradation to the benefit of Dipterocarpaceae species prompted a productivity gain of 3 to 5 m3/ha/year. (O)
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DOI:
https://doi.org/10.19182/bft1999.259.a20008
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