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Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada

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Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada

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dc.contributor.author Wang, Y., es_ES
dc.contributor.author Wei, X. es_ES
dc.contributor.author Del Campo García, Antonio Dámaso es_ES
dc.contributor.author Winkler, R., es_ES
dc.contributor.author Wu,J. es_ES
dc.contributor.author Li, Q. es_ES
dc.contributor.author Liu, w. es_ES
dc.date.accessioned 2020-04-08T05:58:55Z
dc.date.available 2020-04-08T05:58:55Z
dc.date.issued 2019-12-15 es_ES
dc.identifier.issn 0378-1127 es_ES
dc.identifier.uri http://hdl.handle.net/10251/140506
dc.description.abstract [EN] Large-scale forest disturbances including mountain pine beetle infestation and forest fires have generated overstocked lodgepole pine stands in the interior of British Columbia. A critical need is to determine sustainable management strategies to ensure their healthy growth and provision of various ecological functions under increased drought risk due to climate change. In 2016, a field experiment was established to study the effects of juvenile thinning on carbon assimilation and water use at the both tree- and stand-scales in a 16-year old lodgepole pine stand from June to October in 2016 and 2017. This study located northeast of Penticton, British Columbia, included two thinning treatments (T1: 4500 stems per ha; and T2: 1100 stems per ha) and one control (C: 27,000 stems per ha), randomly assigned in three blocks. Sap flow and microclimatic variables were continuously monitered in one plot of each treatment in one block, while tree diameter at breast height were measured across the three blocks. The results showed that C had the lowest tree radial growth (0.14 mm(2)/d), sap flow velocity (64.61 g/cm(2)d), and highest stand transpiration (4.36 mm/d), while T2 had the highest tree radial growth (1.28 mm(2)/d), sap flow velocity (149.14 g/cm(2)d), and lowest stand transpiration (0.36 mm/d) over the two-year study period. Significant differences of tree radial growth and sap flow velocity between T1 and T2 only occurred under the drought condition (in the summer season of 2017), with T2 having a significant higher resistant index of sap flow velocity than C and T1, by taking advantage of the change in microclimatic conditions following intense thinning. At the stand-level, only the stand transpiration of T1 statistically decreased in the drought year. We conclude that the thinning plays a significant and positive role in maintaining tree growth and water consumption in the short term, and the more heavily thinning (T2) would be more effective to mitigate the drought effect in young overstocking lodgepole pine forests in terms of water consumption. These findings improve our understanding on how thinning can be used to manage ecological responses to forest practices in a changing climate. es_ES
dc.description.sponsorship The project was supported by the Collaborative Research and Development (CRD) Grants from Natural Sciences and Engineering Research Council of Canada (NSERC). We thank Dr. Guang Qi, Dr. Xin Yang, Dr. Peng Zhang, Dr. Yingchun Liao for help in the field experiments, Dr. Trevor Blenner, Dr. Russell Smith and Dr. David Spittlehouse for providing the data of stand density, leaf area index and long-term climatic condition, Dr. Paramjit Gill for statistical advice, and Dr. David Scott, Dr. Tongli Wang and Krysta Giles-Hansen for valuable comments on the manuscript. We are grateful to the management faculty of Upper Penticton Watershed for the access to the study site and for their support toward our ecohydrological research programs. Y. Wang, X. Wei and A. del Campo designed the study; Y. Wang, X. Wei and A. del Campo led the field data collection and analyses; Y. Wang and X. Wei led the writing of the manuscript. All authors contributed to the drafts and gave final approval for publication. Professor del Campo was beneficiary of a "Salvador de Madariaga" grant (PR2015-00635) funded by the Spanish Government. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MECD/PR2015-00635 es_ES
dc.relation.ispartof Forest Ecology and Management es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Juvenile thinning es_ES
dc.subject Thinning intensity es_ES
dc.subject Pinus contorta es_ES
dc.subject Carbon and water processes es_ES
dc.subject Sap flow es_ES
dc.subject Drought es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.foreco.2019.117667 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2021-12-15 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 Wang, Y.; Wei, X.; Del Campo García, AD.; Winkler, R.; Wu, J.; Li, Q.; Liu, W. (2019). Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada. Forest Ecology and Management. 454:1-9. https://doi.org/10.1016/j.foreco.2019.117667 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.foreco.2019.117667 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 9 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 454 es_ES
dc.relation.pasarela S\401103 es_ES
dc.contributor.funder Ministerio de Educación, Cultura y Deporte es_ES


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