Abstract

Growth data were collected from 41 stands of poplar (Populus sp.) growing on former farmland in Sweden, situated between latitudes 55 and 63° N. The mean age of the poplar was 20 years (range 4-73), the mean stand density 1327 stems ha-1 (range 155-4690), and the mean diameter at breast height (over bark) 210 mm (range 49-447 mm). Soil types in the poplar stands were mainly clay (25 stands), other sediments (six stands) and sandy silty till (10 stands). The mean total standing dry weight above stump level (z200 mm) for poplar was 141.9±13.9 ton ha-1 with a range of 19-438 ton ha-1. In addition to estimating conventional dry weights of trees and tree components, SLA, PLA and LAI, among other measures, were estimated and were in agreement with published figures. The results indicate that poplar stands could produce 70-105 ton ha-1 after 10-15 years growth mainly used for biofuel. Otherwise, the stands could be thinned for pulpwood and timber production with a rotation period of 25-30 years and the thinnings used for biofuel.

Published in

Biomass and Bioenergy
2011, Volume: 35, number: 5, pages: 1925-1934
Publisher: Elsevier

SLU Authors

• Johansson, Tord

  • Department of Energy and Technology, Swedish University of Agricultural Sciences
    

• Karacic, Almir

  • Department of Energy and Technology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Forest Science


Publication identifier

DOI: https://doi.org/10.1016/j.biombioe.2011.01.040

Permanent link to this page (URI)

https://res.slu.se/id/publ/39481