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dc.contributor.author | Gómez García, Esteban |
dc.contributor.author | Fonseca, Teresa F. |
dc.contributor.author | Crecente Campo, Felipe |
dc.contributor.author | Almeida, Luís R. |
dc.contributor.author | Diéguez Aranda, Ulises |
dc.contributor.author | Huang, Shongming |
dc.contributor.author | Marques, Carlos P. |
dc.date.accessioned | 2020-05-24T22:11:51Z |
dc.date.available | 2020-05-24T22:11:51Z |
dc.date.issued | 2016 |
dc.identifier.citation | Gómez-García E, Fonseca TF, Crecente-Campo F, Almeida LR, Diéguez-Aranda U, Huang S, Marques CP (2015). Height-diameter models for maritime pine in Portugal: a comparison of basic, generalized and mixed-effects models. iForest 9: 72-78. - doi: 10.3832/ifor1520-008 |
dc.identifier.uri | http://hdl.handle.net/10347/22536 |
dc.description.abstract | Tree height is a key variable in forest monitoring studies and for forest management. However, tree height measurement is time consuming, and the recommended procedure is to use estimates from height-diameter models. Here, we compare height-diameter model forms and approaches for predicting tree height (h) as a function of tree diameter at breast height (d) and additional stand level covariates. Four model forms were evaluated: (i) basic models (which only used d as predictor variable); (ii) generalized models (which used d and stand-level predictor variables); (iii) a mixed-effects model based on the best basic model; and (iv) a mixed-effects model based on the best generalized model. Several alternatives aimed at minimizing height measurement effort were tested in terms of accuracy and applicability. From a practical point of view, the selected generalized model is recommended for estimating the height of maritime pine in Portugal. The results also show that a calibrated basic mixed model provides more accurate results than a basic model locally fitted when the number of h-d observations is limited. |
dc.language.iso | eng |
dc.publisher | Italian Society of Silviculture and Forest Ecology (SISEF) |
dc.rights | Copyright © 2015 SISEF. This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ |
dc.subject | Pinus pinaster Ait. |
dc.subject | Sampling Design |
dc.subject | Local Model |
dc.subject | Stand Variables |
dc.subject | Generalized h-d Relationship |
dc.subject | Calibration |
dc.title | Height-diameter models for maritime pine in Portugal: a comparison of basic, generalized and mixed-effects models |
dc.type | journal article |
dc.identifier.doi | 10.3832/ifor1520-008 |
dc.relation.publisherversion | https://doi.org/10.3832/ifor1520-008 |
dc.type.hasVersion | VoR |
dc.identifier.essn | 1971-7458 |
dc.rights.accessRights | open access |
dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Enxeñaría Agroforestal |
dc.description.peerreviewed | SI |
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Copyright © 2015 SISEF. This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made
Copyright © 2015 SISEF. This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made