Radiative transfer modeling in structurally complex stands: towards a better understanding of parametrization
| Autor: | Mathieu Jonard, François De Coligny, Vincent Gauthray-Guyénet, Gauthier Ligot, Benoît Courbaud, Louis de Wergifosse, Nicolas Beudez, Frédéric André |
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| Přispěvatelé: | Université Catholique de Louvain = Catholic University of Louvain (UCL), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Gembloux Agro-Bio Tech [Gembloux], Université de Liège, Laboratoire des EcoSystèmes et des Sociétés en Montagne (UR LESSEM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences [SDV]Life Sciences [q-bio] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy 01 natural sciences symbols.namesake [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Heterogeneous forests Parametrization (atmospheric modeling) Statistical physics 0105 earth and related environmental sciences Bayesian optimization Light interception Ecology Radiative transfer modeling Crown asymmetry Beer-Lambert Beer–Lambert law Forestry 15. Life on land [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics Porous envelope symbols Environmental science [SDE.BE]Environmental Sciences/Biodiversity and Ecology 010606 plant biology & botany |
| Zdroj: | Annals of Forest Science Annals of Forest Science, Springer Nature (since 2011)/EDP Science (until 2010), 2021, 78 (4), pp.92. ⟨10.1007/s13595-021-01106-8⟩ Annals of Forest Science, 2021, 78 (4), pp.92. ⟨10.1007/s13595-021-01106-8⟩ |
| ISSN: | 1286-4560 1297-966X |
| Popis: | International audience; Abstract• Key messageThe best options to parametrize a radiative transfer model change according to the response variable used for fitting. To predict transmitted radiation, the turbid medium approach performs much better than the porous envelop, especially when accounting for the intra-specific variations in leaf area density but crown shape has limited effects. When fitting with tree growth data, the porous envelop approach combined with the more complex crown shape provides better results. When using a joint optimization with both variables, the better options are the turbid medium and the more detailed approach for describing crown shape and leaf area density.• ContextSolar radiation transfer is a key process of tree growth dynamics in forest.• AimsDetermining the best options to parametrize a forest radiative transfer model in heterogeneous oak and beech stands from Belgium.• MethodsCalibration and evaluation of a forest radiative transfer module coupled to a spatially explicit tree growth model were repeated for different configuration options (i.e., turbid medium vs porous envelope to calculate light interception by trees, crown shapes of contrasting complexity to account for their asymmetry) and response variables used for fitting (transmitted radiation and/or tree growth data).• ResultsThe turbid medium outperformed the porous envelope approach. The more complex crown shapes enabling to account for crown asymmetry improved performances when including growth data in the calibration.• ConclusionOur results provide insights on the options to select when parametrizing a forest radiative 3D-crown transfer model depending on the research or application objectives. |
| Databáze: | OpenAIRE |
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