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外文期刊>Journal of Tropical Forest Science
>SUSCEPTIBILITY OF CORYMBIA CITRIODORA SUBSP. VARIEGATA, EUCALYPTUS CLOEZIANA AND E. GRANDIS TO THE CUT-STUMP APPLICATION OF GLYPHOSATE FOLLOWING PRE-COMMERCIAL THINNING OPERATIONS IN NORTH-EASTERN AUSTRALIA
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SUSCEPTIBILITY OF CORYMBIA CITRIODORA SUBSP. VARIEGATA, EUCALYPTUS CLOEZIANA AND E. GRANDIS TO THE CUT-STUMP APPLICATION OF GLYPHOSATE FOLLOWING PRE-COMMERCIAL THINNING OPERATIONS IN NORTH-EASTERN AUSTRALIA
Over the past ten years, there has been an increase in the area of eucalypt timber plantations established throughout Australia (Wood et al., 2001) and the world (Klemarewski et al. 2000). Although the majority of these plantations are for the production of woodchips for pulp and paper manufacture, an increased proportion is used for the production of high value solid wood products, in particular sawlogs, poles and veneer In Queensland, early age pre-commercial thinning of sawlog plantations has become a standard operational management technique (Dickinson et al. 1998). The use of unimproved seed of high genetic variability necessitates the use of high initial stocking (commonly 1000 to 1200 trees ha~(-1)) to achieve a satisfactory number of vigorous well-formed trees of commercial value (commonly 400 to 500 trees ha~(-1)) following thinning. For eucalypts, it is important that pre-commercial thinning of malformed and subdominant trees be conducted at an early tree age (1,5 to 3,5 years) to minimise intraspecific competition and hence maximise the growth of the retained stems (Chapola et al. 1995, Gerrand et al. 1997, Dickinson et al. 2000).
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