Observations on 3-dimensional crown growth of Stone pine
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In this work we wish to demonstrate the possibility of a reconstruction of the 3D growth of the Stone pine (Pinus pinea L) crown. The crowns of two samples were digitized in segments corresponding with individual years, which allowed us to reconstruct length-growth and 3D shape over the last 5 years. Due to the low sample amount, we limited ourselves to observations and methodology-descriptions instead of overall conclusions. We were able to observe diminished height-growth in year 2006, which is the year after a severe drought. However, this was not observed in the total length-growth of the crown. It is possible to see that the growth of 2006 is not dominant at the top of the crown, as it would have been in normal years. The year of the drought, 2005, is visible in the annual rings, but the shoot length of 2005 is not visibly lower than expected.
KeywordsPinus pinea 3D digitization Crown architecture
We would like to acknowledge Reinhard Hemmerling for his valued assistance in geometrical calculations, Fréderic Danjon for substantial information about the digitalization technique and FASTRAK functioning. The first author would like to thank FCT (Fundacao de Ciencia e Tecnologia) for funding, through grant SFRH/BPD/29953/2006.
- Donès N, Adam B, Sinoquet H (2006) PiafDigit: software to drive a Polhemus Fastrak 3 SPACE 3D digitizer and for the acquisition of plant architecture. Version 1.0 UMR PIAF INRA-UPB, Clermont-Ferrand, 15 ppGoogle Scholar
- Godin C, Costes E, Sinoquet H (2005) Plant architecture modeling: virtual plants and complex systems. In: Turnbull CGN (ed) Plant architecture and its manipulation. Blackwell, Oxford, pp 238–287 Annual Plant Reviews no. 17Google Scholar
- Halle F, Oldeman RAA, Thomlinson PB (1978) Tropical trees and forests–an architectural analysis. Springer, Berlin, Heidelberg, New York, p 441Google Scholar
- Kurth W (1994) Growth Grammar Interpreter GROGRA 2.4: introduction and reference manual. B-38 FZW, GöttingenGoogle Scholar
- Lanner M (1989) An observation on apical dominance and the umbrella-crown of Italian stone pine (Pinus pinea, Pinaceae). Econ Bot 43:128–130Google Scholar
- Mutke S, Gil L (2004) Análisis Y Modelización De La Arquitectura De Copa De Pinus Pinea L. Actas de la Reunion de Modelizaación Forestal, pp 71–76Google Scholar
- Oliver CD, Larson BC (1996) Forest stand dynamics: updated edition. Wiley, New York, p 520Google Scholar
- Prusinkiewicz P, Hammel M, Hanan J, Mech R (1996) Visual models of plant development. In: Rozenberg G, Salomaa A (eds) Handbook of formal languages, vol. III: beyond words. Springer-Verlag New York, Inc, New York, pp 535–597Google Scholar
- Van der Heijden GWAM, de Visser PHB, Heuvelink E (2007) Measurements for functional-structural plant models. In: Vos J, Marcelis LFM, de Visser PHB, Struik PC, Evers JB (eds) Functional-structural plant modeling in crop production. Wageningen UR Frontis Series, vol 22. Springer, Berlin, pp 13–25CrossRefGoogle Scholar