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Book (stand-alone)Factors Affecting Productivity of Tropical Forest Plantations: Acacia, Eucalypt, Teak, Pine
GLOBAL FIBRE SUPPLY STUDY - Working Paper Series
1997Also available in:
No results found.Gains from a good tree improvement program (starting with species/provenance matching to site) can usually result in considerable gain in wood yields from tropical forest plantations. Optimal nursery and silvicultural practices (including seed pre-treatment, application of nitrogen-fixing soil micro-organisms, optimal spacing for defined end use, selection of adequate site, fertilization, and irrigation) can considerably increase such gains further. This report summarizes literature on gains tha t might be expected by implementing tree improvements and optimal silvicultural practices for acacias, eucalypts, teak and pines in tropical areas. Results are presented for each genus in turn, first examining factors common to all the genera, and then focusing on unique factors. The data on tree-growth gains are extremely variable from study to study. They range from virtually no favourable response to tree improvement and optimal silviculture, to gains of many hundreds of percent over c ontrols. This of course complicates the matter of using such data in global fibre supply modelling. -
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