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Application of the GreenLab Model to Simulate and Optimize Wood Production and Tree Stability: A Theoretical Study
Qi, Rui1,2; Letort, Veronique1; Kang, Mengzhen2; Cournede, Paul-Henry1,3; de Reffye, Philippe3,4; Fourcaud, Thierry4
Source PublicationSILVA FENNICA
2009
Volume43Issue:3Pages:465-487
SubtypeArticle
AbstractThe GreenLab model was used to study the interaction between source-sink dynamics at the whole tree level, wood production and distribution within the stem, and tree mechanical stability through simulation and optimization. In this first promising numerical attempt, two GreenLab parameters were considered in order to maximize wood production: the sink strength for cambial growth and a coefficient that determines the way the biomass assigned to cambial growth is allocated to each metamer, through optimization and simulation respectively. The optimization procedure that has been used is based on a heuristic optimization algorithm called Particle Swarm Optimization (PSO). In the first part of the paper, wood production was maximized without considering the effect of wood distribution on tree mechanical stability. Contrary to common idea that increasing sink strength for cambial growth leads to increasing wood production, an optimal value can be found. The optimization results implied that all optimal source and sink balance should be considered to optimize wood production. In a further step, the mechanical stability of trees submitted to their self weight was taken into account based on simplified mechanical assumptions. Simulation results revealed that the allocation of wood at the stem base strongly influenced its global deformation. Such basic mechanical criterion can be an indicator of wood quality if we consider further the active biomechanical processes involved in tree gravitropic responses, e.g. formation of reaction wood.
KeywordBiomechanics Fspm Particle Swarm Optimization Source-sink Dynamics Optimization Wood Quality Biomass Allocation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordARCHITECTURAL PLANT-MODEL ; ROBINIA-PSEUDOACACIA L ; NORWAY SPRUCE ; MECHANICAL-PROPERTIES ; SHAPE REGULATION ; GROWTH STRESSES ; GROWING TREES ; FOREST TREES ; GRAVITY ; IMPLEMENTATION
Indexed BySCI ; ISTP
Language英语
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000269584700012
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Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/2797
Collection模式识别国家重点实验室_多媒体计算与图形学
Affiliation1.Ecole Cent Paris, Lab Appl Math, F-92295 Chatenay Malabry, France
2.Chinese Acad Sci, LIAMA NLPR, Inst Automat, Beijing 100190, Peoples R China
3.Parc Orsay Univ, EPI Digiplant, INRIA Saclay Ile de France, F-91893 Orsay, France
4.UMR AMAP, CIRAD, F-34000 Montpellier, France
First Author AffilicationChinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Qi, Rui,Letort, Veronique,Kang, Mengzhen,et al. Application of the GreenLab Model to Simulate and Optimize Wood Production and Tree Stability: A Theoretical Study[J]. SILVA FENNICA,2009,43(3):465-487.
APA Qi, Rui,Letort, Veronique,Kang, Mengzhen,Cournede, Paul-Henry,de Reffye, Philippe,&Fourcaud, Thierry.(2009).Application of the GreenLab Model to Simulate and Optimize Wood Production and Tree Stability: A Theoretical Study.SILVA FENNICA,43(3),465-487.
MLA Qi, Rui,et al."Application of the GreenLab Model to Simulate and Optimize Wood Production and Tree Stability: A Theoretical Study".SILVA FENNICA 43.3(2009):465-487.
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