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http://www.nrcresearchpress.com/doi/pdfplus/10.1139/x03-054
The recent practice of planting broad-leaved trees at wide spacing (3 × 3 m) in Britain has generated debate concerning the effects of initial spacing on early growth (up to 5 years old) and form. The experiments described investigated the effects of spacing on the early growth of common ash (Fraxinus excelsior L.) using two replicate Nelder experiments at two sites, with spacings in the range 0.77–4.86 m. In both experiments, height, stem diameter, and stem volume decreased with increasing spacing; at one site, shoot and root dry mass also showed the same trend. These results suggest that better growth at closer spacings may be a silvicultural characteristic of ash. Analysis of the data showed that there was no intraspecific competition, and a number of hypotheses were examined that may explain the observed results.
For further details log on website :
http://www.nrcresearchpress.com/doi/pdfplus/10.1139/x03-054
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