The University of Southampton
University of Southampton Institutional Repository

Effects of environment and progeny on biomass estimations of five hybrid poplar families grown at three contrasting sites across Europe

Dillen, Sophie Y., Marron, Nicola., Bastien, Catherine., Ricciotti, Luca., Salani, Francesco, Sabatti, Maurizio, Pinel, Matthieu P.C., Rae, Anne M., Taylor, Gail and Ceulemans, Reinhart (2007) Effects of environment and progeny on biomass estimations of five hybrid poplar families grown at three contrasting sites across Europe Forest Ecology and Management, 252, (1-3), pp. 12-23. (doi:10.1016/j.foreco.2007.06.003).

Record type: Article


The quantitative and qualitative estimation of above ground biomass production is essential for short-rotation forestry. Indirect methods of biomass estimation have been developed based on the establishment of regressions between biomass components and tree dimensions as well as canopy architecture. The difficulty encountered with this method is to know whether, and to what degree, the obtained equations can be used under contrasting environmental conditions and for different genetic backgrounds.

In the present study, allometric equations were developed linking tree dry weight (stem, branch and aboveground tree dry weight) with stem circumference, stem height and number of sylleptic branches for five 2-year-old intra- as well as interspecific poplar (Populus) families growing at three contrasting sites in Europe, i.e. Northern Italy, Central France and Southern UK. The multiple regression method was used to find the most precise biomass equation which represents the genetic variation for each family at each site, independently, as well as a common equation involving all families and sites.

The two F(1) P. deltoides × P. trichocarpa families and the F(1) P. alba × P. alba family were the most productive families irrespective of site. However, different patterns in biomass accumulation were observed between these crosses. The F(1) P. alba × P. alba family accumulated significantly more biomass in branches than in the stem as compared to both other families. In most cases, different transformations of the dependent variables were needed to improve the linear equations. Stem circumference was superior in predicting tree dry weight, but stem height and number of sylleptic branches were often needed to optimize the equations dependent on family and site.

A standardized equation combining the five families and the three sites explained more than 95% of the observed variation for tree dry weight. However, there was a significant family effect, and at the UK site, a severe rust attack could have affected the relationships among the three predictors resulting in a significantly different equation for this site. When the UK site was excluded from the model, no overall site effect was observed. Thus, a single equation might be applied at family level regardless of the environmental conditions when stand density, age and plantation management are comparable.

PDF Effects_of_environment_and_progeny_on_biomass_estimations_of_five_hybrid_poplar_families_grown_at_three_contrasting_sites_across_Europe.pdf - Version of Record
Restricted to Repository staff only
Download (571kB)

More information

Published date: 30 November 2007
Keywords: allometry, populus hybrids, allocation, short-rotation coppice culture (SRC), stem biomass, branch biomass


Local EPrints ID: 159981
ISSN: 0378-1127
PURE UUID: 15deecbd-1cf4-4b45-acb4-b2c67dbb4236

Catalogue record

Date deposited: 09 Jul 2010 11:17
Last modified: 18 Jul 2017 12:36

Export record



Author: Sophie Y. Dillen
Author: Nicola. Marron
Author: Catherine. Bastien
Author: Luca. Ricciotti
Author: Francesco Salani
Author: Maurizio Sabatti
Author: Matthieu P.C. Pinel
Author: Anne M. Rae
Author: Gail Taylor
Author: Reinhart Ceulemans

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.