What factors influence the stem taper of Eucalyptus: growth, environmental conditions, or genetics?

Content Provider	Semantic Scholar
Author	Gomat, Hugues Yvan Deleporte, Philippe Moukini, Régis Mialounguila, Gladys Ognouabi, Nina Saya, Aubin Rachel Vigneron, Philippe Saint-André, Laurent
Copyright Year	2011
Abstract	Abstract• IntroductionStem taper equations have been widely used for volume estimation to varied top diameter limits or for biomass calculations. However, their main drawback is that specific calibration is often necessary for each species or clone, and accounting for genetic and environmental effects is often a challenge.• MethodsIn order to investigate this point, we decided to study the stem shape of several clones growing in Congo and to build an equation which should (1) be simple and have a good predictive quality, (2) have explicit parameters, and (3) be generic enough so as to be transposable to other species or to other eucalyptus clones. A sample of 1,623 trees, representing 16 genetically different clones selected for their contrasting growth patterns, was used.• ResultsEven though these clones had different stem shapes, we successfully developed a single equation using the triplet (height/diameter at breast height/age) for all the clones.• ConclusionsThe study also indicates that both growth environmental conditions and genetics have an impact on the stem shape, but that the genetic effect was fully realized through tree growth. The root mean square error for the over-bark diameter was 7 mm, allowing its use over the whole plantation area.
Starting Page	109
Ending Page	120
Page Count	12
File Format	PDF HTM / HTML
DOI	10.1007/s13595-011-0012-3
Alternate Webpage(s)	https://prodinra.inra.fr/ft?id=707671D7-316C-4621-A505-185C7EC25220
Alternate Webpage(s)	https://doi.org/10.1007/s13595-011-0012-3
Volume Number	68
Journal	Annals of Forest Science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article