LENCINAS Maria Vanessa
Tree health influences diameter growth along site quality, crown class and age gradients in Nothofagus forests of southern Patagonia
ATTIS BELTRÁN, H; MARTÍNEZ PASTUR, G; IVANCICH, H; LENCINAS, MV; CHAUCHARD, LM
Journal of Forest Science
Kangwon National University
Lugar: Chunchon; Año: 2013 vol. 59 p. 328 - 336
Tree growth is one of the main variables within the forest management planning, and usually is estimate using models with different complexity. The challenge in the tree growth modeling resides in isolate the main variables and includes them in one model within an acceptable error of estimation. Tree health can be estimated through the external characteristics of the tree stem and crown, and can be related to rotten wood. This variable is generally measured during the forest inventories, due to can influence over individual tree growth and consequently over stand productivity along natural gradients (e.g., site quality of the stands or crown classes of the trees). The aim of this work was to analyze the influence of tree health characterization over diameter annual increment along site quality of the stands, and crown class and tree age gradients. We found that healthy trees present higher annual diameter growths than unhealthy trees along the studied gradients (age, crown and site quality). Therefore tree health can be potentially employed in the growth modelling as dependent variable to improve the accuracy and fitness of the calculation in the natural forests.