Nom du corpus

Corpus Systématique Végétale

Titre du document

Chromolaena odorata in slash-and-burn rice systems of Northern Laos

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • plant introduction
  • weed
  • fallow vegetation
  • biomass production
  • improved fallow
Nom du fichier dans la ressource
Syst_veg6_v2_024764
Auteur(s)
  • W. Roder 1
  • S. Phengchanh 2
  • B. Keoboualapha 2
  • S. Maniphone 2
Affiliation(s)
  • 1) IRRI, P. O. Box 933, 1099, Manila, Philippines
  • 2) LAO-IRRI Project, P.O. Box 600, Luang Prabang, Laos
Résumé

Chromolaena odorata, introduced to Laos in the 1930s, has become the most abundant weed and fallow species in slash-and-burn fields over a wide range of land use systems, elevation, and pH ranges. Regeneration from roots, high seed production and easy dispersal allow for the rapid colonization of fields in the initial fallow period. At rice harvest, after a 1-year and a 2-year fallow, the total aboverground biomass in monitoring plots was 1.4, 10, and 15.4 t ha−1, with 16, 48, and 29% contribution byC. odorata, respectively. With progressing fallow periodC. odorata is gradually replaced by tree and bamboo species. Slash-and-burn farmers preferredC. odorata over other fallow species common in their fields.Chromolaena odorata is an excellent fallow species considering its fast expansion after crop harvest, high biomass production, weed suppression, and fast decomposition rate. Some of these properties may, however, become a serious disadvantage when farmers gradually change to land use systems that integrate grazed fallow, crop rotation, and/or fruit and timber plantations.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - forestry
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Agronomy and Crop Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Forestry
Catégories WoS
  • 1 - science ; 2 - forestry
  • 1 - science ; 2 - agronomy
Identifiant ISTEX
EBFE86AB7CA42C806F386A7D461F17ED98C45FE3
Revue

Agroforestry Systems

Année de publication
1995
Présence de XML structuré
Non
Score qualité du texte
8.778
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0R6BQDQG-D
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