Forest management plan for two forest comprising 20 ha in Vegadeo municipality, Asturias.
Authorship
M.B.R.
Master in Forest Engineering
M.B.R.
Master in Forest Engineering
Defense date
09.15.2025 08:30
09.15.2025 08:30
Summary
This Master’s Thesis develops a Forest Management Technical Plan (PTGF) for four privatelyowned plots located in Vegadeo (Asturias, NW Spain), with a total area of 21.7 ha planted with Eucalyptus nitens stands aged three years. The document follows the General Instructions for Forest Management and Planning in Asturias, and integrates forest inventory, ecological characterization, silvicultural planning, and economic analysis. Based on a systematic sampling inventory, stand structure was assessed, volumes were estimated using taper equations, and the main mensuration parameters were calculated. A rotation age analysis was performed, considering both maximum physical yield (biological optimum) and maximum economic value (financial optimum). In both cases, the optimal rotation was found to be around 11or12 years, coinciding with the maximum Mean Annual Increment and the highest Land Expectation Value (LEV). Results show that Eucalyptus nitens stands in Vegadeo display high productivity in short rotations, with a favorable economic performance (LEV above €15,000/ha in both cantons). This study provides a practical technical tool for realworld management while also serving as an academic exercise integrating sustainability, forest planning, and economic assessment.
This Master’s Thesis develops a Forest Management Technical Plan (PTGF) for four privatelyowned plots located in Vegadeo (Asturias, NW Spain), with a total area of 21.7 ha planted with Eucalyptus nitens stands aged three years. The document follows the General Instructions for Forest Management and Planning in Asturias, and integrates forest inventory, ecological characterization, silvicultural planning, and economic analysis. Based on a systematic sampling inventory, stand structure was assessed, volumes were estimated using taper equations, and the main mensuration parameters were calculated. A rotation age analysis was performed, considering both maximum physical yield (biological optimum) and maximum economic value (financial optimum). In both cases, the optimal rotation was found to be around 11or12 years, coinciding with the maximum Mean Annual Increment and the highest Land Expectation Value (LEV). Results show that Eucalyptus nitens stands in Vegadeo display high productivity in short rotations, with a favorable economic performance (LEV above €15,000/ha in both cantons). This study provides a practical technical tool for realworld management while also serving as an academic exercise integrating sustainability, forest planning, and economic assessment.
Direction
Rojo Alboreca, Alberto (Tutorships)
Rojo Alboreca, Alberto (Tutorships)
Court
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
RODRÍGUEZ SOALLEIRO, ROQUE (Secretary)
MAREY PEREZ, MANUEL FRANCISCO (Member)
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
RODRÍGUEZ SOALLEIRO, ROQUE (Secretary)
MAREY PEREZ, MANUEL FRANCISCO (Member)
Approaches to obtain acclimated plants of the in vitro accession ‘Ciprés Mediterráneo Da Capela Do Salvador’ (Samos Municipality, Lugo, Spain)
Authorship
M.G.V.
Master in Forest Engineering
M.G.V.
Master in Forest Engineering
Defense date
09.15.2025 12:15
09.15.2025 12:15
Summary
From an in vitro clonal accession (clone ‘Capela’) of the monumental specimen “Capela do Salvador Cypress” (Cupressus sempervirens L. ‘Fastigiata’), included in the Galician Catalogue of Monumental Trees, maintained in the Micropropagation Laboratory of the EPSE in Lugo, a series of experiments were carried out aimed at optimizing the conditions of preservation of the accession through continuous subculturing, obtaining rooted propagules which can be acclimatized and assessing the viability of the in vitro micrografting technique of micro-scions of the clone ‘Capela’ on juvenile cypress in vitro rootstocks, to obtain micrografted plants that could be acclimatized. As a result of these experiments, an improvement in the multiplication rates of the accession was observed, by adjusting the in vitro culture conditions in terms of the culture medium and the color temperature of the light source. It was not possible to induce rooting of the explants of clone ‘Capela’, despite testing multiple factors, such as the type and concentration of auxins, the auxin induction method, the percentage of sucrose in the medium, the addition of activated charcoal and a period of darkness at the beginning of the rooting process. The in vitro micrografting tests were successful, and micrografted plants were obtained, with rooting rates between 35% and 66.7%, depending on the rootstock used; spontaneous root formation was observed in more than 30% of the succeeded micrografts. The juvenile clones expressed good rooting ability (70% in clone XUV1, after dipping in auxin) and acceptable survival in acclimatization (43.3% at 70 days). This work describes for the first time an in vitro micrografting protocol in Cupressus sempervirens and proposes a viable approach for clonal conservation and regeneration of recalcitrant monumental trees.
From an in vitro clonal accession (clone ‘Capela’) of the monumental specimen “Capela do Salvador Cypress” (Cupressus sempervirens L. ‘Fastigiata’), included in the Galician Catalogue of Monumental Trees, maintained in the Micropropagation Laboratory of the EPSE in Lugo, a series of experiments were carried out aimed at optimizing the conditions of preservation of the accession through continuous subculturing, obtaining rooted propagules which can be acclimatized and assessing the viability of the in vitro micrografting technique of micro-scions of the clone ‘Capela’ on juvenile cypress in vitro rootstocks, to obtain micrografted plants that could be acclimatized. As a result of these experiments, an improvement in the multiplication rates of the accession was observed, by adjusting the in vitro culture conditions in terms of the culture medium and the color temperature of the light source. It was not possible to induce rooting of the explants of clone ‘Capela’, despite testing multiple factors, such as the type and concentration of auxins, the auxin induction method, the percentage of sucrose in the medium, the addition of activated charcoal and a period of darkness at the beginning of the rooting process. The in vitro micrografting tests were successful, and micrografted plants were obtained, with rooting rates between 35% and 66.7%, depending on the rootstock used; spontaneous root formation was observed in more than 30% of the succeeded micrografts. The juvenile clones expressed good rooting ability (70% in clone XUV1, after dipping in auxin) and acceptable survival in acclimatization (43.3% at 70 days). This work describes for the first time an in vitro micrografting protocol in Cupressus sempervirens and proposes a viable approach for clonal conservation and regeneration of recalcitrant monumental trees.
Direction
FERNÁNDEZ LORENZO, JUAN LUIS (Tutorships)
Couso Viana, Ana (Co-tutorships)
FERNÁNDEZ LORENZO, JUAN LUIS (Tutorships)
Couso Viana, Ana (Co-tutorships)
Court
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
RODRÍGUEZ SOALLEIRO, ROQUE (Secretary)
AMARO GONZALEZ, RAFAELA MARIA (Member)
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
RODRÍGUEZ SOALLEIRO, ROQUE (Secretary)
AMARO GONZALEZ, RAFAELA MARIA (Member)
Development of a global individual tree mortality model in natural temperate Pinus-Quercus forests in Mexico
Authorship
A.J.G.M.
Master in Forest Engineering
A.J.G.M.
Master in Forest Engineering
Defense date
09.15.2025 09:15
09.15.2025 09:15
Summary
In this study, the influence of various factors on the natural mortality process of individual trees in the mixed temperate pine-oak forests of the Sierra Madre Occidental in Mexico was evaluated. For this purpose, data from an extensive network of permanent plots covering the entire study area were used, in which two to three measurements were taken at different time intervals. Parameters commonly used in forest inventories were studied, including tree-related and stand-related parameters; competition indices dependent and independent of the distance between individuals; structural variables related to local distributions of species, heights, and diameters; and the effect of species through grouping into large genus groups. The results seem to confirm the existence of a U-shaped mortality pattern, where smaller individuals are associated with a higher probability of mortality due to competition, while in dominant trees, this probability increases due to senescence or other factors. Competition was identified as an important factor in mortality, its effect being adequately represented using simple indices independent of the distance between individuals, which simplifies the field data collection. Other factors associated with individual tree vigor or site quality also showed a significant effect on mortality. In addition, different patterns were observed between individuals of the genus Pinus and those of the genus Quercus. Finally, different models were developed to estimate survival probability, including these factors and also considering the effect of time elapsed between inventories.
In this study, the influence of various factors on the natural mortality process of individual trees in the mixed temperate pine-oak forests of the Sierra Madre Occidental in Mexico was evaluated. For this purpose, data from an extensive network of permanent plots covering the entire study area were used, in which two to three measurements were taken at different time intervals. Parameters commonly used in forest inventories were studied, including tree-related and stand-related parameters; competition indices dependent and independent of the distance between individuals; structural variables related to local distributions of species, heights, and diameters; and the effect of species through grouping into large genus groups. The results seem to confirm the existence of a U-shaped mortality pattern, where smaller individuals are associated with a higher probability of mortality due to competition, while in dominant trees, this probability increases due to senescence or other factors. Competition was identified as an important factor in mortality, its effect being adequately represented using simple indices independent of the distance between individuals, which simplifies the field data collection. Other factors associated with individual tree vigor or site quality also showed a significant effect on mortality. In addition, different patterns were observed between individuals of the genus Pinus and those of the genus Quercus. Finally, different models were developed to estimate survival probability, including these factors and also considering the effect of time elapsed between inventories.
Direction
ALVAREZ GONZALEZ, JUAN GABRIEL (Tutorships)
Nava Miranda, María Guadalupe (Co-tutorships)
ALVAREZ GONZALEZ, JUAN GABRIEL (Tutorships)
Nava Miranda, María Guadalupe (Co-tutorships)
Court
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
DIEGUEZ ARANDA, ULISES (Secretary)
Rojo Alboreca, Alberto (Member)
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
DIEGUEZ ARANDA, ULISES (Secretary)
Rojo Alboreca, Alberto (Member)
Proposal for the implementation of production models in Natura 2000 Network areas and analysis of the social perception in the municipality of A Fonsagrada.
Authorship
A.R.A.
Master in Forest Engineering
A.R.A.
Master in Forest Engineering
Defense date
09.15.2025 11:15
09.15.2025 11:15
Summary
This technical study uses a case study to analyse the social perception of Natura 2000 Network proposals in a non-representative part of the municipality of A Fonsagrada. The study also aims to determine the acceptance of proposals for implementing production models in these areas among users. To demonstrate the compatibility of conserving these areas with the economic viability of responsible forest management, an exhaustive compilation of similar projects was carried out. These projects aimed to implement sustainable production models adapted to the study area. To conduct this study, an online survey was developed and distributed to people with varying degrees of connection to the municipality of A Fonsagrada. The survey consists of three sections: the first collects socio-economic variables; the second asks questions about respondents' opinions of the protected natural area; and the third presents the proposed production models and asks questions about respondents' opinions on their implementation in the area. Finally, the data obtained from the surveys is analysed. For the second section of questions, regarding the Natura 2000 Network, the k-prototype algorithm is used to group datasets. A total of 123 responses were obtained, 106 of which were from individuals connected to the council. Of these, 34% were unaware of the protected area. Of those who were aware of it, their perception of its protected status was analysed. The clustering methodology used was entirely valid and met the set objectives, establishing well-defined groups. Those affected by this area were found to have a more negative view, while those unaffected by the Natura 2000 network were found to have a more positive view. Regarding the implementation of production models, the vast majority of respondents were in favour.
This technical study uses a case study to analyse the social perception of Natura 2000 Network proposals in a non-representative part of the municipality of A Fonsagrada. The study also aims to determine the acceptance of proposals for implementing production models in these areas among users. To demonstrate the compatibility of conserving these areas with the economic viability of responsible forest management, an exhaustive compilation of similar projects was carried out. These projects aimed to implement sustainable production models adapted to the study area. To conduct this study, an online survey was developed and distributed to people with varying degrees of connection to the municipality of A Fonsagrada. The survey consists of three sections: the first collects socio-economic variables; the second asks questions about respondents' opinions of the protected natural area; and the third presents the proposed production models and asks questions about respondents' opinions on their implementation in the area. Finally, the data obtained from the surveys is analysed. For the second section of questions, regarding the Natura 2000 Network, the k-prototype algorithm is used to group datasets. A total of 123 responses were obtained, 106 of which were from individuals connected to the council. Of these, 34% were unaware of the protected area. Of those who were aware of it, their perception of its protected status was analysed. The clustering methodology used was entirely valid and met the set objectives, establishing well-defined groups. Those affected by this area were found to have a more negative view, while those unaffected by the Natura 2000 network were found to have a more positive view. Regarding the implementation of production models, the vast majority of respondents were in favour.
Direction
MAREY PEREZ, MANUEL FRANCISCO (Tutorships)
López Álvarez, Oscar (Co-tutorships)
MAREY PEREZ, MANUEL FRANCISCO (Tutorships)
López Álvarez, Oscar (Co-tutorships)
Court
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
DIAZ VARELA, EMILIO RAFAEL (Secretary)
VAZQUEZ GONZALEZ, IBAN (Member)
PEREZ CRUZADO, CESAR (Coordinator)
PEREZ CRUZADO, CESAR (Chairman)
DIAZ VARELA, EMILIO RAFAEL (Secretary)
VAZQUEZ GONZALEZ, IBAN (Member)