Understanding Tree-to-Tree Variations in Stone Pine (Pinus pinea L.) Cone Production Using Terrestrial Laser Scanner
| Autor: | Olivier Martin-Ducup, Rafael Calama, Robert Schneider |
|---|---|
| Přispěvatelé: | Université du Québec à Rimouski (UQAR), Centro de Investigacion Forestal (INIA-CIFOR), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria = National Institute for Agricultural and Food Research and Technology (INIA), 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), CIFOR-INIA, Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Laser scanning Science Crown characteristics Inter-tree variability [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy 010603 evolutionary biology 01 natural sciences [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Production (economics) 0105 earth and related environmental sciences Mathematics Crown (botany) Modeling Forestry stone pinecone production terrestrial laser scanner crown characteristics modeling inter-tree variability 15. Life on land [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics Cone (formal languages) Pinus Tree (data structure) Stone pinecone production Terrestrial laser scanner General Earth and Planetary Sciences Stone pine [SDE.BE]Environmental Sciences/Biodiversity and Ecology Pruning |
| Zdroj: | Remote Sensing Remote Sensing, MDPI, 2020, 3D Forest Structure Observation, 12 (1), pp.173. ⟨10.3390/rs12010173⟩ Remote Sensing; Volume 12; Issue 1; Pages: 173 Remote Sensing, 2020, 3D Forest Structure Observation, 12 (1), pp.173. ⟨10.3390/rs12010173⟩ Remote Sensing, Vol 12, Iss 1, p 173 (2020) |
| ISSN: | 2072-4292 |
| Popis: | International audience; Kernels found in stone pinecones are of great economic value, often surpassing timber income for most forest owners. Visually evaluating cone production on standing trees is challenging since the cones are located in the sun-exposed part of the crown, and covered by two vegetative shoots. Very few studies were carried out in evaluating how new remote sensing technologies such as terrestrial laser scanners (TLS) can be used in assessing cone production, or in trying to explain the tree-to-tree variability within a given stand. Using data from 129 trees in 26 plots located in the Spanish Northern Plateau, the gain observed by using TLS data when compared to traditional inventory data in predicting the presence, the number, and the average weight of the cones in an individual tree was evaluated. The models using TLS-derived metrics consistently showed better fit statistics, when compared to models using traditional inventory data pertaining to site and tree levels. Crown dimensions such as projected crown area and crown volume, crown density, and crown asymmetry were the key TLS-derived drivers in understanding the variability in inter-tree cone production. These results underline the importance of crown characteristics in assessing cone production in stone pine. Moreover, as cone production (number of cones and average weight) is higher in crowns with lower density, the use of crown pruning, abandoned over 30 years ago, might be the key to increasing production in combination with stand density management |
| Databáze: | OpenAIRE |
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