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| Titre : |
Cluster point sampling in moist tropical forests using large basal area factors.
|
| in | Forest ecology and management , Vol. 53 n° 1-4, 01/10/1992 |
| Auteur(s) : | Sydney G. Banyard, Auteur (et co-auteur) |
| Type de document : | Article |
| Sujets : | Enquête ; Échantillonnage ; Zone tropicale ; Forêt tropicale humide ; Peuplement forestier ; Amérique du Sud ; Suriname ; Inventaire forestier |
| Résumé : |
Horizontal point sampling is only occasionally applied under natural tropical forest conditions. Reasons for this include those relating to the complex floristic composition and structure of these forests and to the presence of unacceptable non-sampling errors resulting from missing trees and incorrect borderline tree checking procedures. Concerning teh latter, results from this study, based on probabilities and data derived from computer-simulated sampling on each of three 16 ha real tree stem maps (from Surinam, Kalimantan and Thailand), suggest that there is a statistically valid practical solution. Clusters of points using large basal area factors are used to concentrate work and to ensure that less effort is required in checking the "in/ou" status of a borderline tree. For a give[...] Horizontal point sampling is only occasionally applied under natural tropical forest conditions. Reasons for this include those relating to the complex floristic composition and structure of these forests and to the presence of unacceptable non-sampling errors resulting from missing trees and incorrect borderline tree checking procedures. Concerning teh latter, results from this study, based on probabilities and data derived from computer-simulated sampling on each of three 16 ha real tree stem maps (from Surinam, Kalimantan and Thailand), suggest that there is a statistically valid practical solution. Clusters of points using large basal area factors are used to concentrate work and to ensure that less effort is required in checking the "in/ou" status of a borderline tree. For a given basal area factor and bulk of sample, there is no significant difference between the various cluster point layout used - this offering flexibility in execution. |
| Article en page(s) : | pp. 307-317 |
| Langue(s) : | Anglais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=181375 |
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| Kourou | Archives | AgroParisTech-Kourou | Salle | Papier Périodique | Empruntable Disponible | |
| Nancy | Bibliothèque | sans section | N.1663 | Papier Périodique | Empruntable Disponible |