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Simultaneous assessment, through sap flow and stable isotopes, of water use efficiency (WUE) in thinned pines shows improvement in growth, tree-climate sensitivity and WUE, but not in WUEi

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Simultaneous assessment, through sap flow and stable isotopes, of water use efficiency (WUE) in thinned pines shows improvement in growth, tree-climate sensitivity and WUE, but not in WUEi

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dc.contributor.author Gualberto-Fernandes, Tarcisio Jose es_ES
dc.contributor.author Campo García, Antonio Dámaso del es_ES
dc.contributor.author Herrera Fernandez, Rafael es_ES
dc.contributor.author MOLINA HERRERA, ANTONIO es_ES
dc.date.accessioned 2018-02-13T08:05:34Z
dc.date.available 2018-02-13T08:05:34Z
dc.date.issued 2016 es_ES
dc.identifier.issn 0378-1127 es_ES
dc.identifier.uri http://hdl.handle.net/10251/97764
dc.description.abstract [EN] In water-limited regions, adaptive management of forest and water relationships has been put forward, to implement hydrology-oriented silviculture to reduce stand evapotranspiration and, at the tree level, to improve growth and water use efficiency (WUE). The main goal of this study was to evaluate the effect of thinning in the short and medium term on tree growth, climate (drought) sensitivity, WUE performed using growth and sap flow measurements and WUEi performed using delta C-13 and delta O-18 isotopes, in a typical semiarid forest. This approach also evaluated the reliability of isotopes as indicators of the effects of adaptive forest management. A stagnated Aleppo pine plantation was experimentally thinned at high intensity (H98) in 1998 and at High (H), Medium (M) and Low (L) intensities in 2008, along with a control (C). Substantial limitation of tree growth was observed in C. Thinning not only increased growth, but also changed the.tree growth-precipitation relationships, with C trees depending more on precipitation than thinned trees did. WUEi after thinning was significantly affected only in the medium term, with C trees being more efficient (94.4 mu molCO(2)/molH(2)O) than H98 trees (88.7), especially in dry spells (100.7). WUEi was found to increase when precipitation decreased, regardless of the treatment. However, WUE increased sharply from C (1.26 g biomass/L H2O) to H (3.20 WO, showing a clear difference with WUEi observed in the same years. Thinning caused an increase in 8180 in the short term, but no relationship was found between 8180 and tree water use. It can be concluded that forest management improved WUE in spite of higher tree transpiration, but WUEi remained unchanged, probably due to an underestimate of photosynthetic capacity. The dual isotope (delta C-13 and delta O-18) conceptual model was not consistent with our experimental data. Thus, the question of whether stable isotopes can be used as a tool for addressing the ecophysiological impacts of thinning remains open. (C) 2015 Elsevier B.V. All rights reserved. es_ES
dc.description.sponsorship This study is part of the research projects "CGL2011-28776-C02-02, HYDROSIL", "CGL2014-58127-C3-2, SILWAMED," funded by the Spanish Ministry of Science and Innovation and FEDER funds, and "Determination of hydrologic and forest recovery factors in Mediterranean forests and their social perception," supported by the Ministry of Environment, Rural and Marine Affairs. The authors are grateful to the Valencia Regional Government (CMAAUV, Generalitat Valenciana) and the VAERSA staff for their support in allowing the use of the La Hunde experimental forest and for their assistance in carrying out the fieldwork. We express our gratitude to Professor R. Montes for constructive criticism and suggestions on an earlier version of the paper. The first author thanks the Mundus 17 Programme, coordinated by the University of Porto (Portugal). es_ES
dc.description.sponsorship The authors are grateful to the Valencia Regional Government (CMAAUV, Generalitat Valenciana) and the VAERSA staff for their support in allowing the use of the La Hunde experimental forest and for their assistance in carrying out the fieldwork. We express our gratitude to Professor R. Montes for constructive criticism and suggestions on an earlier version of the paper. The first author thanks the Mundus 17 Programme, coordinated by the University of Porto (Portugal).
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD /CGL2011-28776-C02-02 es_ES
dc.relation MINECO/CGL2014-58127-C3-2-R-AR es_ES
dc.relation.ispartof Forest Ecology and Management es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Dendroclimatology es_ES
dc.subject Adaptive forest management es_ES
dc.subject Hydrology-oriented silviculture es_ES
dc.subject Pinus halepensis es_ES
dc.subject Aleppo pine es_ES
dc.subject Tree transpiration es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.subject.classification INGENIERIA HIDRAULICA es_ES
dc.title Simultaneous assessment, through sap flow and stable isotopes, of water use efficiency (WUE) in thinned pines shows improvement in growth, tree-climate sensitivity and WUE, but not in WUEi es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.foreco.2015.11.029 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation Gualberto-Fernandes, TJ.; Campo García, ADD.; Herrera Fernandez, R.; Molina Herrera, A. (2016). Simultaneous assessment, through sap flow and stable isotopes, of water use efficiency (WUE) in thinned pines shows improvement in growth, tree-climate sensitivity and WUE, but not in WUEi. Forest Ecology and Management. 361:298-308. doi:10.1016/j.foreco.2015.11.029 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.foreco.2015.11.029 es_ES
dc.description.upvformatpinicio 298 es_ES
dc.description.upvformatpfin 308 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 361 es_ES
dc.relation.pasarela S\335763 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES


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