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Titolo:
Application of the functional-structural tree model LIGNUM to sugar maple saplings (Acer saccharum Marsh) growing in forest gaps
Autore:
Perttunen, J; Nikinmaa, E; Lechowicz, MJ; Sievanen, R; Messier, C;
Indirizzi:
Finnish Forest Res Inst, Vantaa Res Stn, Vantaa 01301, Finland Finnish Forest Res Inst Vantaa Finland 01301 Stn, Vantaa 01301, Finland Univ Helsinki, Dept Forest Ecol, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ol, FIN-00014 Helsinki, Finland McGill Univ, Dept Biol, Montreal, PQ H3A 1B1, Canada McGill Univ MontrealPQ Canada H3A 1B1 Biol, Montreal, PQ H3A 1B1, Canada Univ Quebec, Dept Sci Biol, GREFi, Montreal, PQ H3C 3P8, Canada Univ Quebec Montreal PQ Canada H3C 3P8 REFi, Montreal, PQ H3C 3P8, Canada
Titolo Testata:
ANNALS OF BOTANY
fascicolo: 3, volume: 88, anno: 2001,
pagine: 471 - 481
SICI:
0305-7364(200109)88:3<471:AOTFTM>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORTHERN HARDWOOD FORESTS; YELLOW BIRCH; BEECH SEEDLINGS; PLANT-GROWTH; LIGHT; NITROGEN; AVAILABILITY; RESPIRATION; SIMULATION; PATTERNS;
Keywords:
LIGNUM; functional-structural tree model; tree architecture; sugar maple; modelling growth and form;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Perttunen, J Finnish Forest Res Inst, Vantaa Res Stn, POB 18, Vantaa 01301, Finland Finnish Forest Res Inst POB 18 Vantaa Finland 01301 Finland
Citazione:
J. Perttunen et al., "Application of the functional-structural tree model LIGNUM to sugar maple saplings (Acer saccharum Marsh) growing in forest gaps", ANN BOTANY, 88(3), 2001, pp. 471-481

Abstract

LIGNUM is a functional-structural model that represents a tree using four modelling units which closely resemble the real structure of trees: tree segments, tree axes, branching points and buds. Metabolic processes are explicitly related to the structural units in which they take place. Here we adapt earlier versions of LIGNUM designed to model growth of conifers for use with broad-leaved trees. Two primary changes are involved. First, the tree segment for broadleaved trees consists of enclosed cylinders of heartwood, sapwood and bark. Leaves consisting of petioles and blades are attached to the segments. Secondly, axillary buds and rules governing their dormancy are included in the model. This modified version of LIGNUM is used to simulate the growth and form of sugar maple saplings in forest gaps. The annual growth of the model tree is driven by net production after respiration lossesare taken into account. The production rate of each leaf depends on the amount of photosynthetically active radiation it receives. The radiation regime is tracked explicitly in different parts of the tree crown using a modelof mutual shading of the leaves. Forest gaps are represented by changing the radiation intensity in different parts of the model sky. This version ofLIGNUM modified for use with broad-leaf, deciduous trees and parameterizedfor sugar maple, yields good simulations of growth and form in saplings from different forest gap environments. (C) 2001 Annals of Botany Company.

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Documento generato il 25/11/20 alle ore 07:34:16