Journal of Arboriculture 31(6): November 2005 283 field conditions, it can be prepared in graphic form (Figure 4), where the x axis represents the mean dbh for alley or roadside trees, and the y axis the age of the alley or roadside planting. 1 M.Sc., Postgraduate Student Department of Landscape Architecture Section of Landscape Construction and Maintenance Warsaw Agricultural University–SGGW Warszawa, Poland 2* Associate Professor, Head of Section Department of Landscape Architecture Section of Landscape Construction and Maintenance Warsaw Agricultural University–SGGW ul. Nowoursynowska 159, bud. 37 02-776 Warszawa, Poland
[email protected] 3 M.Sc. Department of Environmental Protection Warsaw Agricultural University–SGGW Warszawa, Poland 4 Figure 4. An example of the nomogram based on the model described in this paper, with a possible applica- tion for practical assessment of the average age of the roadside and alley plantings of common lime (linden, Tilia cordata) trees. LITERATURE CITED Henry, H.A.L., and Aarssen,W. 1999. The interpretation of stem diameter–height allometry in trees: Biomechanical constrains, neighbour effects, or biased regressions? Ecol. Lett. 2:89–97. Isik, F., and Li, B. 2003. Rapid assessment of wood density of live trees using the Resistograph for selection in tree improvement programs. Can. J. For. Res. 33:2426–2435. Larsen, F.K., and Kristoffersen, P. 2002. Tilia’s physical dimensions over time. J. Arboric. 28(5):203–211. Mitchell, A. 1979. A field guide to the trees of Britain and northern Europe. William Collins, Sons and Co., London, UK. Pigott, C.D. 1989. Estimation of the age of lime-trees (Tilia spp.) in parklands from stem diameter and ring counts. Arboric. J. 13:289–302. Siewniak, M., and Kusche, D. 1994. Baumpflege Heute. Patzer Verlag, Berlin–Hannover, Germany. Szczepanowska, B. 2001. Drzewa w mieci´se (Trees inside a city). Hortpress Sp. Z o.o., Warszawa, Poland. Weber, K., and Mattheck, C. 2005. The Effects of Excessive Drilling on Wood Decay in Trees. Forschungszentrum Karlsruhe GmbH in der Helmholtz-Gemeinschaft. Institute for Materials Research. Karlsruhe, Germany. White, J. 1998. Estimating the age of large and veteran trees in Britain. Forestry Practice. Forestry Commission, Edinburgh, UK. ©2005 International Society of Arboriculture Assistant Professor Department of Environmental Protection Warsaw Agricultural University–SGGW Warszawa, Poland *Corresponding author.
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