Full text of this article is only available in PDF format.

Séverine Le Dizès (email), Philippe Balandier, Pierre Cruiziat, Patrick Jacquet, André Lacointe, Xavier Le Roux, Hervé Sinoquet

A model for simulating structure-function relationships in walnut tree growth processes.

Le Dizès S., Balandier P., Cruiziat P., Jacquet P., Lacointe A., Le Roux X., Sinoquet H. (1997). A model for simulating structure-function relationships in walnut tree growth processes. Silva Fennica vol. 31 no. 3 article id 5628. https://doi.org/10.14214/sf.a8530

Abstract

An ecophysiological growth process model, called INCA, for simulating the growth and development of a young walnut tree (Juglans regia L.) during three or four years, is presented. This tool, currently under development, aims at integrating architectural and physiological knowledge of the processes involved, in order to give a more rational understanding of the pruning operation. The model describes a simple three-dimensional representation of tree crown, solar radiation interception, photosynthesis, respiration, growth and partitioning of assimilates to leaves, stems, branches and roots. It supports the hypothesis that the tree grows as a collection of semiautonomous, interacting organs that compete for resources, based on daily sink strengths and proximity to sources. The actual growth rate of organs is not predetermined by empirical data, but reflects the pattern of available resources. The major driving variables are solar radiation, temperature, topological, geometrical and physiological factors. Outputs are hourly and daily photosynthate production and respiration, daily dimensional growth, starch storage, biomass production and total number of different types of organ. The user can interact or override any or all of the input variables to examine the effects of such changes on photosynthate production and growth. Within INCA, the tree entities and the surrounding environment are structured in a frame-based representation whereas the processes are coded in a rule-based language. The simulation mechanism is primarily based on the rule chaining capabilities of an inference engine.

Keywords
carbon; simulation; pruning; growth; Juglans regia; structure-function relationships; frame-based representation; rule-based representation; walnut

Published in 1997

Views 6495

Available at https://doi.org/10.14214/sf.a8530 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Yirdaw E., Kanninen M. et al. (2017) Special issue: Drought and Dryland Management – .. Silva Fennica vol. 51 no. 1B article id 6985 (remove) | Edit comment
Dařenová E., Crabbe R. A. et al. (2018) Effect of coppicing, thinning and throughfall re.. Silva Fennica vol. 52 no. 2 article id 9927 (remove) | Edit comment
Suoheimo J., (1984) The occurrence of Otiorrhynchus nodosus and its .. Silva Fennica vol. 18 no. 3 article id 5218 (remove) | Edit comment
Cockayne L., (1929) Hybridism in the forests of New Zealand Acta Forestalia Fennica vol. 34 no. 3 article id 7216 (remove) | Edit comment
Iyer J. G., Chesters G. et al. (1969) Recovery of growth potential of nursery stock pr.. Silva Fennica vol. 3 no. 4 article id 4807 (remove) | Edit comment
Lönnqvist B., (1987) Cultivated forests – the case of manor parks Silva Fennica vol. 21 no. 4 article id 5329 (remove) | Edit comment
Kilkki P., Siitonen M. (1975) Simulation of artificial stands and derivation o.. Acta Forestalia Fennica vol. 0 no. 145 article id 7579 (remove) | Edit comment
Kuusinen N., Hovi A. et al. (2021) Contribution of woody elements to tree level ref.. Silva Fennica vol. 55 no. 5 article id 10600 (remove) | Edit comment
Le Dizès S., Balandier P. et al. (1997) A model for simulating structure-function relati.. Silva Fennica vol. 31 no. 3 article id 5628 (remove) | Edit comment
Your search results