Prediction of annual tree growth and survival for thinned and unthinned evenage...

• Author(s): Nunes, Luís ; Tomé, José ; Patrício, Maria do Sameiro ; Tomé, Margarida
• Date: 2011
• Persistent ID: http://hdl.handle.net/10198/8726
• Origin: Biblioteca Digital do IPB
• Subject(s): Stand dynamics and forest management; Maritime pine; Growth; Individual-tree modelling
• Document Type: Conference Object
• Language: English

Description

The Portuguese national forest strategy (Direcção Geral dos Recursos Florestais, 2006) proposed a specialization of the Portuguese forest territory according to three main functions: wood production, multifunctional systems and protected areas. Wood production is mostly related with pure even-aged stands of two species, the maritime pine (Pinus pinaster, Ait.) and the blue gum (Eucalyptus globulus Labill.). Sustainable forest management of these productive areas requires adequate prediction of wood stocks and growth. An annual individual tree survival and growth model is presented for pure even-aged stands of maritime pine in Portugal, using data with irregularly spaced measurement intervals and considering thinning effects. The model is distance-independent and assuming variable rates of growth and survival.