Modelling plant growth and architecture: some recent advances and applications to agronomy and forestry
Modelling plant structure and growth has undergone major changes in the last decades along two major lines: the integration of ecophysiological knowledge in process-based models which often lack a description of plant topology and geometry, and the generation of 3-D virtual plants using morphogenetic models which simulate the architectural development in a stable and homogeneous environment. There is now a trend to merge these two approaches, that is to link plant architecture and functioning. This trend is based on the recognition that plant structure: is the joint output of the physiological processes (water and carbon balance, etc.) and the morphogenetic programme of the plant; determines the external environment of the trees which itself regulates their functioning (competition for space, light attenuation, etc.); and directly conditions the physiological processes within the tree (hydraulic structure, selfshading, allocation of photosynthates, etc.). Such models can be used in agronomy and forestry in various ways: to investigate the effects, local and global, immediate and delayed, of the biophysical environment on plant morphogenesis and yield; to study light attenuation through the canopy, to analyse the transport of water and the allocation of photosynthates within the plant; to analyse the competitive interactions among different plants in the same stand; to calibrate remote sensing techniques and to visualize large landscapes.
| Main Authors: | , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | U10 - Informatique, mathématiques et statistiques, F62 - Physiologie végétale - Croissance et développement, modèle végétal, application des ordinateurs, plante, arbre, croissance, anatomie végétale, mesure (activité), agronomie, foresterie, modélisation, http://aims.fao.org/aos/agrovoc/c_36583, http://aims.fao.org/aos/agrovoc/c_24009, http://aims.fao.org/aos/agrovoc/c_5993, http://aims.fao.org/aos/agrovoc/c_7887, http://aims.fao.org/aos/agrovoc/c_3394, http://aims.fao.org/aos/agrovoc/c_5954, http://aims.fao.org/aos/agrovoc/c_4668, http://aims.fao.org/aos/agrovoc/c_211, http://aims.fao.org/aos/agrovoc/c_3055, http://aims.fao.org/aos/agrovoc/c_230ab86c, |
| Online Access: | http://agritrop.cirad.fr/389698/ |
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| Summary: | Modelling plant structure and growth has undergone major changes in the last decades along two major lines: the integration of ecophysiological knowledge in process-based models which often lack a description of plant topology and geometry, and the generation of 3-D virtual plants using morphogenetic models which simulate the architectural development in a stable and homogeneous environment. There is now a trend to merge these two approaches, that is to link plant architecture and functioning. This trend is based on the recognition that plant structure: is the joint output of the physiological processes (water and carbon balance, etc.) and the morphogenetic programme of the plant; determines the external environment of the trees which itself regulates their functioning (competition for space, light attenuation, etc.); and directly conditions the physiological processes within the tree (hydraulic structure, selfshading, allocation of photosynthates, etc.). Such models can be used in agronomy and forestry in various ways: to investigate the effects, local and global, immediate and delayed, of the biophysical environment on plant morphogenesis and yield; to study light attenuation through the canopy, to analyse the transport of water and the allocation of photosynthates within the plant; to analyse the competitive interactions among different plants in the same stand; to calibrate remote sensing techniques and to visualize large landscapes. |
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