عنوان مقاله [English]
Eucalyptus camaldulensis is one of the most adaptable and suitable tree species in view point of wood and other productions in Khouzestan province. The aim of this study was to determine the most suitable cutting tools, cutting heights and coppice management in Eucalyptus camaldulensis Dehn. plantations. This study was carried out in Research Station of Abbasabad Dezful on Eucalyptus camaldulensis 9616 plantation (l0 years old). The research was conducted in 2002 under statistical method of split-split plots and Randomized Complete Blocks Design, with three replicates. The main treatments consisted of two levels of cutting tools (axe and chainsaw), two stump heights (15cm and 30cm.) and two sprout management methods (reduced and control). Evaluations have been done on 90 trees of Eucalyptus at 3m×3m spacing. After five years, the data were analyzed using Duncan test and analysis of variance. Results showed that the sprouts appeared at the same time, after cutting the eucalypts in the all treatments. Cutting tools and stump height treatments affected wood production, significantly. The greatest wood yield was achieved at chainsaw and stump height of 15cm treatments. Sprout management treatments also affected sprouts wood production, height, diameter and foliage biomass, significantly. Sprout reduction (2-4 sprouts/stump) increased sprouts wood production and diameter, whereas the control treatment (without sprout management), increased sprouts height and foliage biomass. The results of interaction between the treatments showed that the highest amount of sprouts wood yield and diameter achieved by applying the treatments of chainsaw, stump height of 15cm and leaving two sprouts on each stump.