دورية أكاديمية
Testing root trenching and stem girdling as silvicultural treatments in abandoned oak coppices
| العنوان: | Testing root trenching and stem girdling as silvicultural treatments in abandoned oak coppices |
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| المؤلفون: | Salomón, Roberto L., Miranda, José Carlos, Rubio-Cuadrado, Álvaro, Sobrino-Plata, Juan, Rodríguez Calcerrada, Jesús, López, Rosana, Gil, Luis, Valbuena-Carabaña, María |
| المساهمون: | Comunidad de Madrid, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Organismo Autónomo Parques Nacionales (España), European Commission, Rubio-Cuadrado, Álvaro |
| بيانات النشر: | Elsevier BV |
| سنة النشر: | 2024 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Coppice management, Dendrochronology, Acorn production, Silviculture, Tree decline, Vegetative regeneration |
| الوصف: | © 2024 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0Test/). ; Widespread tree growth decline and absence of acorn production are observed in formerly coppiced Quercus pyrenaica stands. Attempts to convert oak coppices into high forests by thinning have failed to date, possibly due to the massive root system developed by trees after centuries of coppicing. We tested root trenching and stem girdling as silvicultural treatments to mitigate this hypothetical root-to-shoot imbalance and enhance the physiological performance of multi-stemmed clonal trees. We expected that severing the roots within a clone by trenching would reduce root respiratory carbon losses. Alternatively, stem girdling would increase carbon availability above the girdled zone, whilst the communal root system is maintained by non-girdled stems. After clonal structure delineation in a one-hectare experimental plot, root trenching and stem girdling were applied to stems belonging to different clones. Twig hydraulic traits, leaf water potential, non-structural carbohydrates (NSC) concentration in twigs, stems and roots, stem xylem [CO2] as an indicator of root respiration, stem growth, and acorn production were discretely monitored up to 12 years after treatment application for comparison with control stems. Stem girdling led to short-term enhancements in NSC pools above the girdled zone. However, hydraulic dysfunction symptoms and canopy dieback were observed four years after girdling, eventually causing mortality. Root trenching initially increased root respiration and reduced stem growth without an apparent decline in the hydraulic function and NSC pools above-ground. Ten years after trenching, stem [NSC] increased while stem growth limitations diminished. Although not statistically significant, slight enhancements in acorn production were observed 6 and 12 years after trenching. We discourage stem girdling as a silvicultural practice to mitigate ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0378-1127 1872-7042 |
| العلاقة: | #PLACEHOLDER_PARENT_METADATA_VALUE#; P2009/AMB-1668; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-117478RA-I00/ES/DECAIMIENTO DE MELOJARES (QUERCUS PYRENAICA WILLD.): ALCANCE, ORIGEN Y ADAPTACION AL CAMBIO CLIMATICO /; info:eu-repo/grantAgreement/AEI//RYC2021-032467-I; Publisher's version; https://doi.org/10.1016/j.foreco.2024.121722Test; Sí; Forest Ecology and Management 555: 121722 (2024); http://hdl.handle.net/10261/354619Test |
| DOI: | 10.1016/j.foreco.2024.121722 |
| الإتاحة: | https://doi.org/10.1016/j.foreco.2024.121722Test http://hdl.handle.net/10261/354619Test |
| حقوق: | open |
| رقم الانضمام: | edsbas.76242300 |
| قاعدة البيانات: | BASE |
| تدمد: | 03781127 18727042 |
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| DOI: | 10.1016/j.foreco.2024.121722 |