Centre de documentation
scientifique

Assessing tree dendrometrics in young regenerating plantations using terrestrial laser scanning / Ying Li in Annals of Forest Science, vol 71 n° 4 (June 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 4 (June 2014) . - pp 453 - 462 Titre : Assessing tree dendrometrics in young regenerating plantations using terrestrial laser scanning Type de document : Article/Communication Auteurs : Ying Li, Auteur ; Carsten Hess, Auteur ; Henrik Von Wehrden, Auteur ; Werner Härdtle, Auteur ; Goddert Von Oheimb, Auteur Année de publication : 2014 Article en page(s) : pp 453 - 462 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] arbre (flore) [Termes IGN] Chine [Termes IGN] données dendrométriques [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] hauteur des arbres [Termes IGN] plantation forestière [Termes IGN] taillis [Termes IGN] télémétrie laser terrestre Résumé : (Auteur) Context : Terrestrial laser scanning (TLS) provides a valuable tool for the retrieval of detailed individual-tree structural parameters, but has never previously been applied to young stands under field conditions. Aims: The aim was to explore the performance of TLS in a young tree plantation located in a heterogeneous environment in subtropical China. Methods: We investigated 438 young trees for congruence between direct field and TLS measurements of total tree height, stem diameter at ground height, and length and height of the longest branch using correlation tests. We applied generalized linear models to examine whether congruence was affected by the observed structural parameter or extrinsic factors (e.g., potential occlusion, point cloud quality). Results: TLS made it possible to detect trees higher than 40cm. The TLS-retrieved data were highly congruent with the data obtained from direct measurements. The poor descriptions of stems and branches of some individuals of small-sized and leaf-on tree species were due to occlusion by ground vegetation and leaf-on branches. Observed structural parameter and extrinsic factors did not explain the variance between the two approaches. Conclusion: TLS proved to be a promising tool for high-resolution, non-destructive analyses of tree dendrometrics in young regenerating plantations. Numéro de notice : A2014-284 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0358-4 Date de publication en ligne : 29/01/2014 En ligne : https://doi.org/10.1007/s13595-014-0358-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33187 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014041	SL	Revue	Centre de documentation	Revues en salle	Exclu du prêt