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SUMMARY An increasing dependence is likely on fast-growing plantations in the tropics to meet the rising world demand for wood and wood products. With the use often of exotic species in pure stands, grown on short rotations, a possible problem will be the maintenance of productivity in...
SUMMARY Seed production records of six radiata pine orchards in south eastern Australia are presented and examined. Yields commence at about age 5 years and increase to about 20 kg/ha at age 10–12 years, though crops vary and some are much heavier. There is evidence that yields will continue to...
SUMMARY The world literature on identification of tree species from aerial photographs is reviewed. The different factors affecting the importance and development of the art in northern temperate forests, tropical forests and Australian forests are discussed. The Australian experience is...
SUMMARY In a replicated trial near Canberra, first thinnings of a 16-year-old plantation of radiata pine (Pinus radiata D. Don) were carried out by felling every second row (R2), felling every third row (R3), felling every fifth row plus individually selected trees in intermediate rows (SR), and...
SUMMARY Eucalyptus camaldulensis occurs in hot dry areas of Australia. The species has a particularly high root: shoot ratio, an attribute which Jacobs (1955) considered would contribute to its success in an arid environment. Root proliferation among six provenances of E. camaldulensis, together...
SUMMARY The importance of dormant buried seeds of understorey species of the wet sclerophyll forests of northern N.S.W. is discussed in relation to their germination ability following fire or mechanical or chemical abrasion. The optimum temperatures for germination were determined for the more...
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