文献类型：会议论文

英文题名：Adaptation of the GreenLab model for analyzing sink-source relationships in Chinese Pine saplings

作者：Guo, Hong[1] Letort, Veronique[2] Hong, Lingxia[1] Fourcaud, Thierry[3] Cournede, Paul-Henry[2] Lu, Yuanchang[4] Philippe, de Reffye[5]

第一作者：国红

通信作者：Guo, H[1]

机构：[1]Chinese Acad Forestry, Res Inst Forest Resource Informat Tech, Beijing, Peoples R China;[2]Ecole Cent Paris, Lab Appl Math, Paris, France;[3]CIRAD, UMR, Montpellier, France;[4]Chinese Acad Forestry, Res Inst Forest Resource Informat Tech, Beijing, Peoples R China;[5]CIRAD, INRIA Futurs DigiPlante, Montpellier, France

会议论文集：2nd International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications

会议日期：NOV 13-17, 2006

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Biology - Calibration - Topology - Trees (mathematics) - Visualization

年份：2007

摘要：Since the 1990s, a new generation of models has emerged to simulate tree growth with consideration of both tree structure and functional processes. However, calibration of these functional-structural models (FSMs) often remains an open problem due to the topological complexity of trees and to the heavy measurements required In this paper, we explore a possible way for dealing with the fitting problem, based on the GreenLab model approach. Detailed organ-level data including topological and geometrical measurements were collected on eight Chinese Pine (Pinus tabulaeformis Carr.) saplings grown near Beijing. Adaptation of GreenLab to introduce a flexible modeling for biomass allocation to ring growth is presented. The main assumptions, such as allometry rules and sink relationships, were investigated The problem of calibration of a complex branching structure was solved by defining an average tree. The results were interpreted with particular focus on the ones concerning the hidden mechanisms of secondary growth.