Sustainable management, earthquake disturbances, and transient dynamics: modelling timber harvesting impacts in mixed-species forests - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Annals of Forest Science Année : 2013

Sustainable management, earthquake disturbances, and transient dynamics: modelling timber harvesting impacts in mixed-species forests

Georges Kunstler
Robert Allen
  • Fonction : Auteur
David Coomes
Charles Canham
  • Fonction : Auteur
Elaine Wright
  • Fonction : Auteur

Résumé

Context: There is strong interest in sustainable forest management systems that preserve characteristics of forests close to naturalness. Assessing the effectiveness of these systems is difficult because defining 'natural' baselines from which impacts are estimated is challenging, and because the influence of harvesting can have complex interactions with major natural disturbances. Aims: We used SORTIE/NZ, an individual tree based forest dynamics model, to understand how harvesting and earthquake disturbance affect the dynamics of a New Zealand podocarp–angiosperm forest. Methods: Having parameterized SORTIE/NZ with extensive field data we ran simulations for three natural dynamics scenarios (no disturbance and two earthquake scenarios), and then added podocarp harvesting scenario to each of these. Results: Simulations suggest that this forest is experiencing transient dynamics, with a natural rise in the dominance of one species of slow-growing podocarp with and with out earthquake. Harvesting podocarps strongly affected its increase in basal area. Conclusion: Our results indicate that, transient dynamics may occur in mixed podocarp forests and major disturbances may have complex interactions with management. Evaluating management impacts without accounting for these complex dynamics may be misleading. Models make predictions about transient trajectories that may help to evaluate these impacts.
Fichier principal
Vignette du fichier
13595_2012_Article_256.pdf (12.64 Mo) Télécharger le fichier
Origine : Publication financée par une institution
Loading...

Dates et versions

hal-01201472 , version 1 (17-09-2015)

Identifiants

Citer

Georges Kunstler, Robert Allen, David Coomes, Charles Canham, Elaine Wright. Sustainable management, earthquake disturbances, and transient dynamics: modelling timber harvesting impacts in mixed-species forests. Annals of Forest Science, 2013, 70 (3), pp.287-298. ⟨10.1007/s13595-012-0256-6⟩. ⟨hal-01201472⟩
185 Consultations
88 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More