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dc.contributor.authorCondés, Sonia
dc.contributor.authorVallet, Patrick
dc.contributor.authorBielak, Kamil
dc.contributor.authorBravo Oviedo, Andrés
dc.contributor.authorColl Mir, Lluís
dc.contributor.authorDucey, Mark J.
dc.contributor.authorPach, Maciej
dc.contributor.authorPretzsch, Hans
dc.contributor.authorSterba, Hubert
dc.contributor.authorVayreda, Jordi
dc.contributor.authordel Río, Miren
dc.date.accessioned2017-01-25T10:30:43Z
dc.date.issued2017
dc.identifier.issn0378-1127
dc.identifier.urihttp://hdl.handle.net/10459.1/59113
dc.description.abstractThe maximum size-density relationship (MSDR) reflects the boundary site occupancy and the self-thinning line for a given species, being a useful tool in forestry. Studies focusing on the MSDR often do not cover the whole distribution of the studied species, which results in different boundaries for a given species in different regions. A common MSDR is lacking for the increasingly demanded large-scale studies. However, this information is important where silvicultural responses must be prioritized among monospecific stands or where comparisons among maximum and relative stand densities between and within species are required. For the purposes of this study, we used data from 9911 sample plots located in Scots pine and European beech monospecific stands. Both of these species are of considerable importance and widely distributed throughout Europe. The data came from National or Regional Forest Inventories of five European countries (Austria, Germany, France, Spain and Poland) and therefore were distributed across a wide range of climatic conditions. The main aim of this study was to determine whether the MSDR of these species depends on environmental variables and to develop a MSDR model for each species that explain this variability along a climate gradient. The resulting models showed that both parameters of species boundary lines were climate-dependent, but that the pattern of variation differed between species. Hence, the higher the humidity, the steeper the MSDR (more negative exponent) and the higher the intercept for beech, while in the case of pine, the higher the humidity, the straighter the MSDR and the lower the intercept. According to these models, the stand density indices, for a reference diameter of 25 cm, varied with the humidity in a different way for each species. Consequently, the ratio between the two species increases with humidity, although it also depends on stand diameter. These results are in accordance with the yield level theory and could contribute to the development of more precise silvicultural guidelines and growth models based on the self-thinning line. Moreover, they are of particular importance in the discussion of growth and the effects of mixing on mixed species stands.ca_ES
dc.description.sponsorshipThis article is based on work from COST Action FP1206 (EuMIXFOR), supported by COST (European Cooperation in Science and Technology). The first and last authors would like to thank the Spanish Ministry of Economy and Competitiveness for funding the research project AGL2014-51964-C2-2-R, which supports part of this study. The authors are also grateful to all those who make the National Forest Inventory possible in the different countries, and to those providing the data used for this study. Finally we would like to thank to Ricardo Alía for advising on issues related the species genetic.ca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationMINECO/PN2013-2016/AGL2014-51964-C2-2-R
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/j.foreco.2016.10.059ca_ES
dc.relation.ispartofForest Ecology and Management, 2017, vol. 385, p. 295-307ca_ES
dc.rights(c) Elsevier B.V., 2016ca_ES
dc.subjectReineke’s maximum density lineca_ES
dc.subjectSelf-thinningca_ES
dc.subjectStand density indexca_ES
dc.subjectMartonneca_ES
dc.subjectCompetition equivalence coefficientsca_ES
dc.subjectYield levelca_ES
dc.subjectMixing proportionsca_ES
dc.titleClimate influences on the maximum size-density relationship in Scots pine (Pinus sylvestris L.) and European beech (Fagus sylvatica L.) standsca_ES
dc.typearticleca_ES
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.foreco.2016.10.059
dc.date.embargoEndDate10000-01-01


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