Reference : Individual distance-independent girth increment model for Douglas-fir in southern Belgium
Scientific journals : Article
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/17950
Individual distance-independent girth increment model for Douglas-fir in southern Belgium
English
Monty, Arnaud mailto [Université de Liège - ULg > > Gembloux Agro-Bio Tech >]
Lejeune, Philippe mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Rondeux, Jacques mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
2008
Ecological Modelling
Elsevier Science
212
3-4
472-479
Yes (verified by ORBi)
International
0304-3800
Amsterdam
The Netherlands
[en] Pseudotsuga menziesii (MIRB.) FRANCO ; growth model ; girth increment
[en] An individual distance-independent girth increment model for pure stands of Douglas-fir (Pseudotsuga menziesii (MIRB.) FRANCO), comprising two equations, is presented. The data used to fit the model were collected from 1007 trees in 42 plots installed in regularly stocked and even-aged stands located in Wallonia (southern Belgium). Both equations predict girth increment from individual girth, dominant height, basal area per hectare, stand mean girth and variables linked to site fertility. These last variables are the site index H50 in the first equation, and a combination of mean annual rainfall and altitude in the second. The coefficient of determination ranges from 0.434 to 0.481 and the root mean square error ranges from 0.7857 to 0.8194 cm year(-1). Estimated increments of 224 Douglas-fir trees in 12 different and independent stands were used to validate the model, which is expected to provide reliable predictions for most of the pure Douglas-fir stands located in the study area. (c) 2007 Elsevier B.V. All rights reserved
Région wallonne : Direction générale des Ressources naturelles et de l'Environnement - DGRNE
Accord-Cadre/Forest research
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/17950
10.1016/j.ecolmodel.2007.10.041
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VBS-4RWC550-1&_user=532081&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=972316624&_rerunOrigin=scholar.google&_acct=C000026700&_version=1&_urlVersion=0&_userid=532081&md5=b1df517629efff95dca8a0574ef4848c

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