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Terrestrial laser scanning reveals differences in crown structure of Fagus sylvatica in mixed vs . pure European forests
- Source :
- Forest Ecology and Management, Forest Ecology and Management, Elsevier, 2017, 405, pp.381-390. ⟨10.1016/j.foreco.2017.09.043⟩, Repositorio de Resultados de Investigación del INIA, INIA: Repositorio de Resultados de Investigación del INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria INIA
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- Competition with neighboring trees of different species can affect crown size and shape. However, whether intra-specific differences in crown characteristics in mixed stands compared to pure stands are dependent on site conditions remains poorly understood. We used terrestrial laser scanning (TLS) to examine the differences in Fagus sylvatica crown characteristics at four sites, each of which contained pure stands of F. sylvatica and their mixture with Pinus sylvestris. These sites covered the area where the mixture occurs in Europe from south to north, representing a gradient of F. sylvatica productivity, defined as the mean increment of annual volume growth in pure F. sylvatica stands. Despite the large range in productivity, F. sylvatica trees in mixtures had larger crowns regardless of site conditions, with a higher proportion of their crown volume in the lower canopy compared to trees in pure stands. Larger crown volumes were related to higher live crown ratios and greater crown expansion, depending on the site. The magnitude of the mixing effect was variable among the crown characteristics evaluated, but overall our findings provide evidence that for a given species combination and density, the effect of mixture increased in the two most productive sites. TLS-derived novel crown metrics revealed that the mixing effect was affected by productivity, which was not captured by traditionally measured crown variables. © 2017 Elsevier B.V.
- Subjects :
- 0106 biological sciences
Canopy
media_common.quotation_subject
Crown expansion
Morphological plasticity
[SDV]Life Sciences [q-bio]
Large range
Management, Monitoring, Policy and Law
fagus sylvatica
010603 evolutionary biology
01 natural sciences
Competition (biology)
Crown volume
Fagus sylvatica
pure forest stand
european beech
houppier
Botany
Mixing effect
Crown allometry
peuplement forestier melange
Nature and Landscape Conservation
media_common
mixed forest stand
biology
peuplement forestier pur
Crown (botany)
Forestry
Terrestrial laser scanning
15. Life on land
biology.organism_classification
télédétection laser
Productivity (ecology)
Environmental science
Productivity gradient
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 03781127
- Database :
- OpenAIRE
- Journal :
- Forest Ecology and Management, Forest Ecology and Management, Elsevier, 2017, 405, pp.381-390. ⟨10.1016/j.foreco.2017.09.043⟩, Repositorio de Resultados de Investigación del INIA, INIA: Repositorio de Resultados de Investigación del INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria INIA
- Accession number :
- edsair.doi.dedup.....b3f58f3c5d080ff50c7f5b3b3a8da3d6