CERNE
https://cerne.ufla.br/site/index.php/CERNE
<p><strong>Brief Background</strong></p> <p>CERNE is a journal edited by the Federal University of Lavras (UFLA) which publishes original articles and reviews that represent relevant contributions to Forest Science development (Forest Ecology, Forest Management, Silviculture, and Technology of Forest Products). Since its start in 1994, the journal has promoted forest science globally by disseminating researchers' and scientists' findings and knowledge from all regions worldwide. Its abbreviated title is CERNE, which should be used in bibliographies, footnotes, and bibliographical references and strips. The manuscripts are submitted electronically by <a href="https://cerne.ufla.br/site/index.php/CERNE/about/submissions">Cerne's online submission system</a>.</p> <p> </p> <p><strong> Open Science Compliance</strong></p> <p>CERNE follows a series of open science practices. The journal is published under the Open Access model and therefore, articles are free for anyone to read, download, copy, and disseminate for educational purposes. CERNE accepts manuscripts deposited on known preprint servers for evaluation. The Journal requires citation, referencing, and declaration of research data; and promotes peer review. The journal also requires an indication of the role of each of the authors in articles with multiple authorships. Upon previous acceptance by the reviewer and author(s), the content of the reviewer's suggestions might be open for access. All articles are assigned to a Digital Object Identifier (DOI) and all authors must be registered with an Open Researcher and Contributor Identifier (ORCID) number. Finally, the names of the editors responsible will be published in each article.</p> <p> </p> <p><strong>Ethics in Publication</strong></p> <p>The journal complies with the <a href="https://wp.scielo.org/wp-content/uploads/Guide-to-Best-Practices-for-Strengthening-Ethics-in-Scientific-Publishing.pdf">SciELO Guidelines Practices for Strengthening Ethics in Scientific Publication</a> as well as the ethical principles of the <a href="https://publicationethics.org/">Committee on Publication Ethics (COPE)</a>.</p> <p>The manuscript that involves experimentation with living animals, genetically modified organisms, human beings, or LGPD-sensitive data must provide evidence that it was performed under local ethical guidelines. This evidence must be officially stated in the Material and Methods section, describing that the study was evaluated and approved by an appropriate ethical committee.</p> <p> </p> <p><strong>Focus and Scope</strong></p> <p>Articles published in CERNE cover research areas of Forest Ecology, Forest Management, Silviculture, and Technology of Forest Products.</p> <p>Submission of a manuscript to the journal requires that it has neither been published nor is under consideration for publication elsewhere. Concepts and affirmations included in articles are the entire responsibility of the author(s).</p> <p>The journal is published online in a continuous flow mode. Original research articles and reviews (by invitation only) are the main publication formats.</p> <p> </p> <p><strong>Digital Preservation</strong></p> <p>The journal follows the <a href="https://www.scielo.org/en/about-scielo/digital-preservation/">Digital Preservation Policy of the SciELO Program </a>.</p> <p> </p> <p><strong>Indexing Sources</strong></p> <ul> <li><a href="https://agris.fao.org/about/en">AGRIS</a> - International Information System for the Agricultural Sciences and Technology</li> <li>AGROBASE - Base de Dados da Agricultura Brasileira</li> <li><a href="https://www.cabi.org/">CAB Abstracts</a> - Commonwealth Agricultural Bureau</li> <li><a href="https://www.cirsci.org/">CIRS</a> - International Center for Scientific Research</li> <li><a href="https://doaj.org/toc/2317-6342">DOAJ</a> - Directory of Open Access Journals</li> <li><a href="https://ezb.ur.de/searchres.phtml?lang=en&jq_type1=IS&jq_term1=2317-6342">EZB</a> - Eletronic Journals Library</li> <li><a href="https://www.latindex.org/latindex/ficha/3863">LATINDEX</a> - Sistema Regional de Información en línea para Revistas Científicas de América Latina, el Caribe, España y Portugal</li> <li><a href="https://openalex.org/sources/S54628610">OpenAlex</a></li> <li><a href="https://dgb.unam.mx/index.php/catalogos/bibliografia-latinoamericana/periodica">PERIÓDICA</a> - Índice de Revistas Latinoamericanas en Ciencias</li> <li><a href="https://www.redalyc.org/revista.oa?id=744&tipo=coleccion">REDALYC</a> - Red de Revistas Científicas de América Latina y El Caribe, Espanã y Portugal</li> <li><a href="https://www.scielo.br/j/cerne/">SciELO</a> - Scientific Electronic Library Online</li> <li><a href="https://www.scopus.com/sourceid/5400152616">SCOPUS</a> - Elsevier</li> <li>SUMÁRIOS.ORG - Sumários de Revistas Brasileiras</li> <li><a href="https://mjl.clarivate.com/search-results">WEB OF SCIENCE</a> - Thomson Reuters</li> </ul> <p> </p> <p><strong>Bibliographic Journal Information</strong></p> <p>Title: CERNE</p> <p>Abbreviated title: CERNE</p> <p>Publisher: Editora UFLA</p> <p>eISSN: 2317-6342; ISSN: 0104-7760</p> <p>Periodicity: Annual</p> <p>Publication model: Continuous publication</p> <p>Year of journal start: 1994</p> <p> </p> <p><strong>Websites and Social Media</strong></p> <p><a href="https://cerne.ufla.br/site/index.php/CERNE">https://cerne.ufla.br/site/index.php/CERNE</a></p> <p><a href="https://www.scielo.br/j/cerne/">https://www.scielo.br/j/cerne/</a></p> <p> </p> <p> </p> <p><strong>EDITORIAL POLICY</strong></p> <p>Received manuscripts are forwarded to the editorial board to be initially evaluated in terms of comparative relevance to other manuscripts of the same research area that were submitted for publication. If considered relevant, the manuscript is submitted for peer review. If considered as not relevant, the manuscript is rejected without further review.</p> <p> </p> <p><strong>Preprints</strong></p> <p>In accordance with the purposes of Open Science, the CERNE allows the corresponding author, when submitting the article or later, to submit the manuscript, preferably to the <a href="https://preprints.scielo.org/index.php/scielo">SciELO Preprints</a> server. The identification of whether the article submission is a preprint will be given by the authors at the time of submitting the article, attaching to the Journal's submission platform the form on compliance with Open Science provided by the link below.</p> <p><strong><a href="https://view.officeapps.live.com/op/view.aspx?src=https%3A%2F%2Fwp.scielo.org%2Fwp-content%2Fuploads%2FFormulario-de-Conformidade-Ciencia-Aberta.docx&wdOrigin=BROWSELINK">Form on compliance with Open Science </a></strong></p> <p><strong> </strong></p> <p><strong>Peer Review Process</strong></p> <p>The review process of manuscripts submitted to CERNE follows two critical stages, each designed to ensure that only the highest quality research is published. Here's an overview of how it works and the underlying rationale behind each step.</p> <p> </p> <p><strong style="font-size: 0.875rem;">1. Preliminary Evaluation by the Editor-in-Chief</strong></p> <p>The first step begins with an initial assessment conducted by the Editor-in-Chief. This phase ensures that the manuscript aligns with the journal's standards and objectives. The Editor-in-Chief carefully examines several elements:</p> <ul> <li><strong>Relevance to the Journal's Aims and Scope</strong>: This ensures that the manuscript addresses topics pertinent to the journal's specific focus areas.</li> <li><strong>Technical Grammatical and Formal Norms</strong>: The manuscript is checked for basic language and formatting issues, ensuring it adheres to the journal’s submission guidelines.</li> <li><strong>Content, Coherence, and Methodological Consistency</strong>: The Editor-in-Chief reviews the manuscript to verify that it contains well-structured content, flows logically, and is grounded in sound theory and methodology.</li> </ul> <p>If the manuscript passes this initial screening and is deemed valuable by the editorial board, it moves to the second stage for a more in-depth evaluation.</p> <p> </p> <p><strong style="font-size: 0.875rem;">2. Blind Peer Review by Scientific Experts</strong></p> <p>Once the preliminary evaluation is complete, the manuscript is passed to the Field Area Editors. If the article does not meet the criteria for originality and relevance, the scientific editor has the authority to reject the manuscript. If the article has merit, the scientific editor, an expert in the field, assigns two or three independent reviewers. These experts in the relevant field conduct a blind peer review, meaning they review the manuscript without knowing the identity of the authors.</p> <p> </p> <p>The reviewers assess the manuscript based on several important factors:</p> <ul> <li><strong>Subject Matter Appropriateness</strong>: The reviewers verify whether the topic fits within the journal's focus, ensuring the content is relevant to its audience.</li> <li><strong>Novelty of the Information</strong>: They examine whether the research brings something new to the table, contributing original knowledge to the field.</li> <li><strong>Presentation Quality</strong>: Reviewers evaluate whether the manuscript is clearly written, concise, and precise, paying attention to how well the ideas are communicated.</li> </ul> <p> </p> <p>In terms of scientific quality, the reviewers focus on the following aspects:</p> <ul> <li><strong>Topicality</strong>: Is the research relevant to current developments in the field?</li> <li><strong>Originality</strong>: Does the manuscript provide innovative ideas or approaches?</li> <li><strong>Theoretical Rigor</strong>: Is the work grounded in solid theory and methodology that contributes to knowledge development in the area?</li> <li><strong>Writing and Organization</strong>: Reviewers evaluate how well-structured and coherent the manuscript is, ensuring it's easy to follow.</li> <li><strong>Methodology and Data Analysis</strong>: If applicable, they assess whether the research methods are appropriate and whether the analysis is sound.</li> <li><strong>Conclusions</strong>: Finally, the reviewers check if the conclusions are logical, well-supported by the data, and coherent with the rest of the manuscript.</li> </ul> <p>After peer review, the manuscript might be returned to the corresponding author with requests for revision (by e-mail). These revisions are essential to address any gaps, improve clarity, or refine the analysis. The author must submit the corrections within a specified deadline; otherwise, the publication process will be canceled.</p> <p>Additionally, if required, authors may need to have their manuscripts reviewed by a professional English editor to ensure readability and polish before final acceptance.</p> <p>By ensuring rigorous evaluation in each stage, the CERNE review process maintains the integrity and scientific quality of the articles it publishes.</p> <p> </p> <p><strong>Open Data</strong></p> <p>The CERNE encourages the sharing of analysis datasets, instruments, statistical analysis scripts, roadmaps, and additional materials, made available at Open online repositories, such as Guia TOP (<a href="https://wp.scielo.org/wp-content/uploads/Guia_TOP_en.pdf">Guide to promoting the opening, transparency, and reproducibility of research published by SciELO Journals</a>), if they cannot be published in the manuscript itself, and this information must be indicated in the manuscript. Reproducibility of research can be improved by increasing transparency of the research process and products. Also, in this context, research data may be made available by author(s) upon request.</p> <p> </p> <p><strong>Fees</strong></p> <p>CERNE does not charge fees for submission, publication, or manuscript evaluation.</p> <p> </p> <p><strong>Ethics and Misconduct, Correction and Retraction Policy</strong></p> <p>The CERNE is committed to defending the integrity of the literature and publishes Errata, Expressions of Concerns, or Notices of Retraction depending on the situation and the <a href="https://publicationethics.org/node/19896">COPE Guidelines for Retraction</a>.</p> <p>The retraction mechanism follows the <a href="https://publicationethics.org/guidance/guideline/retraction-guidelines">Publication Ethics Committee (COPE) Retraction Guidelines</a>, which can be accessed at COPE - Retraction Guidelines. Please see the following guidelines:</p> <ul> <li><a href="https://wp.scielo.org/wp-content/uploads/Guide-to-Best-Practices-for-Strengthening-Ethics-in-Scientific-Publishing.pdf">Guidelines on Best Practices for Strengthening Ethics in Scientific Publication </a></li> <li><a href="https://wp.scielo.org/wp-content/uploads/guia_errata.pdf">Guide to recording, marking and publishing Correction (Portuguese Only)</a></li> <li><a href="https://wp.scielo.org/wp-content/uploads/guia_retratacao.pdf">Guide for registering, marking and publishing a retraction (Portuguese Only)</a></li> </ul> <p> </p> <p><strong>Policy on Conflict of Interest</strong></p> <p>If, for any reason, a conflict of interest is observed, the author(s) must inform the journal in a specific statement. Conflict of interest may occur when authors, reviewers, or editors show interests that may affect the preparation and evaluation of the manuscript.</p> <p> </p> <p><strong>Adoption of Similarity Software</strong></p> <p> Ideas or writing from someone else must be properly cited. The journal might use similarity software to detect article plagiarism (Copyspider, https://copyspider.com.br/main/), at the time of manuscript submission. If detected, the submitted manuscript is automatically rejected without further review.</p> <p> </p> <p><strong>Adoption of Software Using Artificial Intelligence Resources</strong></p> <p>The use of tools and resources that assist authors in preparing their manuscripts is recommended, if attribution standards are respected, and ethics and scientific integrity are maintained. Authors have the right and freedom to utilize tools and resources that aid in the preparation, writing, reviewing, and translation of their articles, book chapters, or books. Many of these tools and resources are provided by AI applications. However, only humans can be considered authors, as outlined in the following standards and practices:</p> <p> </p> <ul> <li>Disclose the sources of materials used in the research and writing of the article. Any use of or content generated by an AI application must be reported in both the abstract and methods section or the equivalent.</li> <li>Ensure that all cited material is properly attributed, including complete citations, and that the cited sources support AI-generated claims, as AI applications sometimes generate references to non-existent works.</li> <li>Take public responsibility for your work.</li> <li>Concealing the use of AI-generated content is an ethical violation that breaches the principles of transparency and honesty in research.</li> </ul> <p><strong> </strong></p> <p><strong>Gender and Sex Issues</strong></p> <p>The journal encourages gender equity in publication authorship. If needed, gender equity may also be taken into consideration for technical staff and associate editor selections.</p> <p> </p> <p><strong>Ethics Committee</strong></p> <p>The journal complies with the <a href="https://wp.scielo.org/wp-content/uploads/Guide-to-Best-Practices-for-Strengthening-Ethics-in-Scientific-Publishing.pdf">SciELO Guidelines Practices for Strengthening Ethics in Scientific Publication</a> as well as the ethical principles of the <a href="https://publicationethics.org/">Committee on Publication Ethics (COPE)</a>.</p> <p>The manuscript that involves experimentation with living animals, human beings, or LGPD-sensitive data must provide evidence that it was performed under local ethical guidelines. This evidence must be officially stated in the Material and Methods section, describing that the study was evaluated and approved by an appropriate ethical committee.</p> <p> </p> <p><strong> Copyright</strong></p> <p>Authors who publish in this Journal agree to the following terms: Authors retain copyright and grant the Journal the right of first publication, with the work simultaneously licensed under the Creative Commons Attribution (CC-BY), allowing the work to be shared with acknowledgment of authorship and initial publication in this Journal.</p> <p> </p> <p><strong>Intellectual Property and Terms of Use</strong></p> <p><strong>Responsibility of the site:</strong></p> <ul> <li>The publication reserves the right to make normative, orthographic, and grammatical changes to the originals to maintain the cultured standard of the language while respecting the authors' style.</li> <li>The originals will not be returned to the authors.</li> </ul> <p> </p> <p><strong>Author's responsibility:</strong></p> <ul> <li>The authors retain full rights to their work published in CERNE and its total or partial reprinting, deposit or republication is subject to the indication of first publication in the Journal, through the CC-BY license.</li> <li>The original source of publication must be acknowledged.</li> <li>The opinions and concepts expressed by the authors of the manuscripts are their sole responsibility.</li> </ul> <p> </p> <p>This manuscript is licensed under a Creative Commons Attribution 4.0 International License CC-BY.</p> <p> </p> <p>CERNE encourages authors to self-archive their accepted manuscripts, publishing them on personal blogs, institutional repositories, and academic social media, as well as posting them on their social media, if the full citation is included in the version of the Journal website.</p>en-USCERNE0104-7760<p>The published articles are freely distributed among researchers and social media, and all authors transfer the copyright to Cerne. The research findings can also be used in classroom teaching, conferences, dissertations/theses, and other applications without any restriction. We strongly recommend citing the article to reach a wider audience. The Author also declares that the work is original and free of plagiarism. The authors agree with the publication and are responsible for the accuracy of the information.</p>FIREWOOD AND CHARCOAL PRODUCTION IN NORTHEASTERN OF BRAZIL
https://cerne.ufla.br/site/index.php/CERNE/article/view/3405
<p><strong>Background</strong>: Brazil has the largest tropical forest cover in territorial extension, although it is subject to different forms of threat. We analyzed a time series of the firewood and charcoal production from the extractivism of native forests between the years 2010 and 2020 in Northeast Brazil, in order to support future reflections on the impacts of these uses on the sustainability of the production chain of exploration and on the conservation of native forests in the region. Considering the time frame from 2010 to 2020, data on the volume of firewood and charcoal produced from plant extraction in the Northeastern, were obtained via the official platform of Brazilian Institute of Geography and Statistics.</p> <p><strong>Results</strong>: The total production of firewood was 157,771,059 m3 and charcoal 4,137,418 t., while the states of Bahia (29.3%), Ceará (21.4%) and Maranhão (14.1%) accounted for 74.8% of total firewood produced in the Northeastern. As for charcoal production, Maranhão (51.0%), Bahia (20.3%) and Piauí (23.8%) accounted for 95.1% of total produced. Production stationarity was found for all states, with the exception of Paraíba and Piauí in firewood, and Paraíba and Rio Grande do Norte in charcoal. A downward trend was identified in most states, with the exception of Paraíba and Piauí in firewood and Paraíba and Rio Grande do Norte in charcoal, both without any type of trend.</p> <p><strong>Conclusion</strong>: Considering the economic sustainability of the production chain, efforts to encourage energy plantations should focus on regions with lower production, using species of fast-growing species that can meet demand and conserve native caatinga vegetation.</p>Dráuzio Correia GamaDeise Amaral de DeusEmerson Dechechi ChambóFavízia Freitas de Oliveira
Copyright (c) 2025 CERNE
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2025-02-242025-02-24103405SPATIOTEMPORAL DYNAMICS OF ABOVEGROUND BIOMASS IN A MANAGED FOREST, CENTRAL MEXICO
https://cerne.ufla.br/site/index.php/CERNE/article/view/3462
<p><strong>Background</strong>: Quantifying aboveground biomass (AGB) is crucial for studying the carbon cycle and estimating mitigation potential of climate change. Combining field inventory data and remote sensing such as Landsat imagery, is a common approach for landscape-Level AGB analysis. However, uncertainties in biomass estimations persist, highlighting the need for improved statistical methods. The objectives of this study were (i) model the AGB of temperate forests managed for timber production using Landsat 8 data and three regression algorithms (linear regression, generalized additive models [GAM], and random forests), and (ii) quantify interannual AGB variations (2013–2022) across a forest landscape. Predictor variables included spectral bands, vegetation indices (VI), textural metrics, and stand age.</p> <p><strong>Results</strong>: The RF algorithm showed the best performance with accurate estimates, explaining 76% of the AGB variability. It also showed an RMSE of 32.93 Mg ha-1 when stand age was included as a predictor variable. The AGB showed a spatial variation from 9 to 289 Mg ha-1, and an inventory of 113,408.81 Mg (±11,663.13 Mg) in a landscape of 823.6 ha, ranging from 101,904.70 Mg in 2013 to 127,915.60 Mg in 2022. The 10-12-year-old stands showed the highest increment of biomass after a decade, increasing from 71.06 Mg ha-1 (±19.81) in 2013 to 153.37 Mg ha-1 (±14.13) in 2022.</p> <p><strong>Conclusion</strong>: The study evaluated a practical methodology to estimate the spatiotemporal variation of AGB in managed temperate forests. This approach can be implemented to support the evaluation of the potential contribution of managed forests to climate change mitigation.</p>Bossuet Gaston Cortes-SánchezGregorio Ángeles-PérezHector Manuel de los Santos-PosadasJosé René Valdez-LazaldeMaría de los Angeles Soriano-Luna
Copyright (c) 2025 CERNE
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2025-02-282025-02-28103462SEASONAL DYNAMICS OF CARBON AND NUTRIENTS IN LITTER IN Khaya STANDS IN SOUTHEASTERN BRAZIL
https://cerne.ufla.br/site/index.php/CERNE/article/view/3506
<p><strong>Background</strong>: Scarce information is available on soil-plant interactions to guide management practices for the Khaya genus. This study aims to evaluate the influence of seasonality on the accumulation of litter during two different rainfall periods, as well as to determine its nutrient and carbon content and stock in stands of Khaya at 10.6 years of age. The samples were collected using a template measuring 0.25 m × 0.25 m (0.0625 m²) in a zigzag pattern with a minimum distance of 4 m between points.</p> <p><strong>Results:</strong> Nutrient contents were quantified, including macronutrients (N, P, K, Ca, Mg, and S) and micronutrients (Fe, Zn, Cu, Mn, and B), as well as organic carbon in the plant tissue of three species of Khaya (K. grandifoliola, K. ivorensis,and K. senegalensis). In terms of C content, no statistical differences were found between the species during the rainy season. However, for the same period, higher stocks of macronutrients were observed in the following order: Ca > N > Mg > K > S > P. Among micronutrients, Fe showed the highest and Cu showed the lowest stocks.</p> <p><strong>Conclusion:</strong> K. ivorensis species exhibited the highest biomass production and the best nutritional quality.</p>Marcos Vinicius Winckler CaldeiraGabriel Soares Lopes GomesDione Richer MomolliRobert GomesVictor Braga Rodrigues DuarteJúlio Cézar Tannure FariaTiago De Oliveira GodinhoHenrique Machado DiasMarcos Gervasio PereiraMatheus Severo de Souza Kulmann
Copyright (c) 2025 CERNE
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2025-04-072025-04-07103506PREDICTIVE MODELS OF THE OCCURRENCE OF HOLLOWS IN COMMERCIAL TREES IN THE BRAZILIAN AMAZON: A COMPARISON WITH THE HOLLOW TEST
https://cerne.ufla.br/site/index.php/CERNE/article/view/3447
<p><strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;">Background:</span></span></strong><span style="vertical-align: inherit;"><span style="vertical-align: inherit;"> The prediction of hollows in standing trees is an expensive operation, but it is essential for decision-making about harvesting in managed forests in the Amazon. The hollow test that is currently used has strong limitations for correct prediction of the presence of hollows in a tree of commercial interest. The objective of this research was to select and validate generalized linear logistic models to estimate the occurrence of hollows in trees of fifteen commercial species and to compare the efficiency of the models to the results from the traditional manual method of hollow testing in the state of Pará, Brazil. A database of 27,380 trees was used to adjust models by species. To validate the equations, 9,915 trees from an independent area were used.</span></span></p> <p><strong>Results:</strong> Diameter at breast height (DBH), commercial height (h<sub>c</sub>) and stem quality (SQ) were important predictors of the occurrence of tree hollows, while wood density (WD) did not generate significant gains in the models. Species are determinants of the probability of a tree being hollow. From a DBH of approximately 100 cm, the probability of occurrence of hollows in the trees reaches about 80% for Manilkara bidentata (A. DC.) A. Chev., and for and Mezilaurus itauba (Meisn.) Taub. ex Mez and Astronium lecointei Ducke, for example, hollows occur in diameters of about 120 cm. Logistic equations are more efficient in predicting the presence of a hollow when a tree contains one, compared to the hollow test.</p> <p><strong>Conclusion:</strong> It is possible to accurately predict the occurrence of hollows in commercial trees, which may be an alternative to the current hollow test used in managed areas in the Brazilian Amazon.</p>Misael Freitas dos SantosAfonso Figueiredo FilhoAllan Libanio PelissariRodrigo Geroni Mendes NascimentoDaniele Lima da Costa
Copyright (c) 2025 CERNE
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2025-03-262025-03-26103447EVALUATION OF INTERNAL WOOD CONDITION IN TREE TRUNKS USING SONIC TOMOGRAPHY AND ELECTRICAL RESISTANCE TOMOGRAPHY
https://cerne.ufla.br/site/index.php/CERNE/article/view/3486
<p><strong>Backgrounds:</strong> There are still uncertainties on how the data obtained from tomographs can affect tree failure risk evaluations. The aim of the study was to evaluate the internal trunk condition of <em>Spathodea campanulata</em> using sonic and electrical resistance tomographies. Forty-three individuals of the were evaluated with the PiCUS 3 tomography and TreeTronic 3 tomography. <strong>Results:</strong> Sonic tomographies detected internal wood decay in 27,9% of the individuals and the Electrical resistance ones detected 30,2%. Five individuals showed differing results between the two types of equipment. Collectively, the tomographies revealed the following results: 55.8% of the trees had good internal conditions, 6.3% demonstrated decay, 16.3% demonstrated early stages of decay, and 11.6% demonstrated advanced stages of wood decay. <strong>Conclusion:</strong> In conclusion, both tomographies provided significant information for diagnosing the internal condition of the trunk though their correct interpretation relies on the operator's level of expertise.</p>Tamilis EmerickAngeline MartiniMarina Moura de Souza
Copyright (c) 2025 CERNE
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2025-04-242025-04-24103486IMPACT OF FORESTRY OPERATIONS ON FOREST SOIL RESPIRATION DEPENDING ON STANDS FEATURES IN KASTAMONU, TURKIYE
https://cerne.ufla.br/site/index.php/CERNE/article/view/3423
<p><strong>Background: </strong>Harvesting, especially skidding operations have a significant impact on the forest soil properties. This study aimed to advance understanding of how timber harvesting may influence soil respiration in forested ecosystems. We investigated the impact of soil respiration for some of the skidding techniques after skidding operations depending on slope and stand types.</p> <p><strong>Results: </strong>We measured soil CO2 efflux to evaluate the skidding techniques on soil, depending on the slope and stand type. Thus, three skidding techniques with tractor for harvesting (1-suspended skidding, 2-using a skidding cone, 3-cable-pulling) were used in 6 different study site and the variations in soil respiration and soil properties were examined at 3 different slopes (0-20%, 20-33%, >33%), 2 different stand types (b-bc, c-cd) at topsoil (0-5 cm). Also soil respiration was measured at intervals of 5 days (on days 1, 5, and 10) after skidding operation. In addition, pH, EC (electrical conductivity), and soil moisture were evaluated depending on slope and stand type in the study.</p> <p><strong>Conclusion: </strong>It was determined that respiration increased on the first day but decreased on day 5 and 10. It was found that the slope and stand type have no effect on soil respiration. It was determined that the skidding technique that reduces the soil respiration the most is suspended skidding with a rate of 90%. However, the skidding technique that reduced respiration the least was skidding by using a skidding cone suspended skidding with a rate of 64% when evaluated on day 10.</p> Çiğdem Özer GençBurak Aricak
Copyright (c) 2025 CERNE
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2025-01-222025-01-22103423POST-FIRE TRAJECTORIES IN ATLANTIC FOREST REGENERATION: A CASE STUDY IN FRAGMENTED LANDSCAPES
https://cerne.ufla.br/site/index.php/CERNE/article/view/3464
<p><strong>Background:</strong> Forests in the Atlantic Forest Domain are increasingly threatened by fire, which disrupts their structure, biodiversity, and resilience. This study investigates how fire impacts functional diversity, community structure, and regeneration in fragmented forest patches near urban areas.</p> <p><strong>Results</strong>: We analyzed three types of forest patches: Closed Forest, Perturbed Forest (Once-burned Forest), and Burned Forest (Twice-burned Forest). Significant differences were found in species composition, diversity, and structural parameters among these vegetation types. Closed Forests exhibited the highest levels of functional diversity, structural complexity, and species richness. In contrast, Perturbed and Burned Forests showed reduced functional diversity, lower community level traits, and diminished resilience. Functional metrics, such as functional divergence (Fdiv) and functional richness (Fric) were notably lower in fire-affected areas. Additionally, fire occurrence influenced dispersal modes, with animal-dispersed species predominating and a notable absence of large-seeded species.</p> <p><strong>Conclusion</strong>: The study highlights the significant impact of fire on forest regeneration. Recurrent fires lead to decreased species diversity and functional redundancy, transforming closed-canopy forests into more open, savanna-like landscapes. The absence of large-seeded and animal-dispersed species further impedes the regeneration and resilience of fragmented Atlantic Forests. These findings underscore the need for targeted conservation and management strategies to support forest recovery and maintain biodiversity in fire-prone regions.</p>Felipe De Carvalho AraújoPaulo Oswaldo GarciaKalill José Viana da PáscoaAloysio Souza de MouraPatrícia Carneiro Lobo-FariaRubens Manoel dos SantosMarco Aurélio Leite Fontes
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2025-02-192025-02-19103464OPTIMIZATION OF QUEUEING COMPLEXITY IN THE FOREST TRANSPORTATION PROBLEM
https://cerne.ufla.br/site/index.php/CERNE/article/view/3392
<p><strong>Background:</strong> The principal challenge in forest transportation lies in minimizing the fleet of vehicles and cranes while adhering to operational constraints. Addressing this intricate operational issue yields numerous advantages. This research is dedicated to the development and evaluation of a controlling device designed to enhance timber logistics. A queue simulator is utilized to estimate prospective wait times for the optimized system. Two scenarios are analyzed: one integrating the controlling device and the other excluding it. The study underscores the advantages of vehicle type A, which, due to its higher number of wheelers and fewer cranes compared to vehicle type B, demonstrates greater efficacy in establishing a robust queuing system.</p> <p><strong>Results:</strong> Although comprehensive numerical analysis is not provided, the utilization of fewer cranes indicates potential cost reductions. The Forest Transportation Problem (FTP) model is employed to optimize the spatial allocation of trucks and cranes during loading and unloading operations. The succinct mathematical formulation of this model renders it both effective and user-friendly. The fuzzy controlling device (FCD), which emulates human decision-making processes in the allocation of wheelers to cranes, significantly enhances the comprehension of optimization outcomes. A comparative assessment reveals that scenario 1 (excluding the FCD) appears more advantageous for replicating the queuing system under the specified conditions. Notably, the integration of the FCD with the queue simulator engenders logical and coherent queue behavior within the forest transportation framework.</p> <p><strong>Conclusion:</strong> The findings of this study substantiate the effectiveness of the developed controlling device in optimizing timber logistics by augmenting the efficiency of the queuing system and potentially reducing crane utilization costs. Vehicles associated with higher crane productivity required fewer trucks to perform transportation tasks more efficiently compared to those with less productive cranes. The incorporation of the FCD refines the decision-making process and yields valuable insights into the operational dynamics of forest transportation. The study’s outcomes contribute significantly to the field, offering practical implications for optimizing resource allocation and enhancing logistical performance in forestry operations.</p>Cássio Augusto Ussi Monti Vanessa de Souza GomesSeverino José MacôoKalill Jose Viana da PáscoaLuciano Cavalcante de Jesus FrançaMônica Canaan Carvalho Carolina Souza Jarochinski e SilvaLucas Rezende Gomide
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2025-04-162025-04-16103392DETERMINATION THE NATURAL PLANT COMPOSITIONS AND SPECIES DISTRIBUTION MODEL IN DIFFERENT HABITAT TYPES OF DÜZCE (TÜRKIYE)
https://cerne.ufla.br/site/index.php/CERNE/article/view/3449
<p><strong>Background</strong>: Türkiye is a very rich country in terms of the distribution and diversity of plants. Despite these current conditions, natural plant species are not sufficiently used in designing urban landscapes. The research aims to reveal an ecological model approach to urban planting by determining the ecological indicator values (EIV’s) and coexistence in nature of the species detected in the natural vegetation, revealing the potential of plants to come together.</p> <p><strong>Results</strong>: Within the scope of research, natural areas in Düzce Plain and at the points touching the plain were determined according to the CORINE land cover classification, and 5 different habitat types were determined as forest habitat, riparian areas, rocky habitat, wetlands and meadow habitat. In this study, 420 plant taxa belonging to 89 families which were taken from 33 points and 168 sample areas, were identified. Both natural plant species determined by collecting plant species from the area and plant species diversity will be revealed by determining the ecological demands of the plants. After determining whether the coexistence of plant species collected and identified in these habitat types is distributed in an interdependent manner, scenarios regarding the coexistence of plants were constructed with the help of the latent variables model (LVM’s) by R software program.</p> <p><strong>Conclusion</strong>: Some of the plant species with the highest percentage of presence according to the plant layers were selected, and plant compositions with high coexistence were proposed according to the LVM’s.</p>Sertaç KayaEngin EROĞLUNermin BAŞARANAhmet AYTEĞİNAbdullah Hüseyin DÖNMEZ
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2025-02-242025-02-24103449SAMPLING STRATEGIES ALONG THE TREE STEM TO DETERMINE THE BASIC DENSITY OF Eucalyptus WOOD
https://cerne.ufla.br/site/index.php/CERNE/article/view/3500
<p><strong>Background:</strong> There is a need to find a simpler sampling strategy that still maintains the accuracy of the results<strong>.</strong> This work aimed to assess different sampling strategies for measuring the basic wood density of <em>Eucalyptus</em> clones along the tree trunk.</p> <p><strong>Results:</strong> The basic wood density of most <em>Eucalyptus</em> clones was affected by the sampling strategy employed. The average density varied between samples, ranging from 476.69 to 449.61 Kg m<sup>-3</sup>. In this study, the base positions generally showed lower density averages. Traditional sampling best represented the variation trend in Composite sampling due to their similar behavior. Depending on the clone and sampling methodology, the diameter at breast height represented 91.85 to 99.74% of the overall average stem. All adjusted equations were significant, allowing the basic density to be estimated through smaller sampling regions along the tree trunk. When the goal is to evaluate the property at four sample points, the best model corresponds to the heights in the upper half of the stem, which are the higher regions.</p> <p><strong>Conclusions: </strong> The analyzed base-top sampling strategies did not show significant differences between them, except for the one that only considered the diameter at breast height, which underestimated the basic density value of the wood. Sampling Alternative 1 effectively estimated the average density when considering all clones as a single material, which is the best strategy for measuring basic density under the conditions in the present study. Sampling positions at 50% of the tree's commercial height were more associated with the basic density.</p>Stéffany AraujoLuana Bento ProtázioGabriela Goldner GimenezUdson de Oliveira Barros JuniorThayanne Caroline Castor NetoDaniella Flávia Said Heid Schettini SilvaDaniela Andrade Neves RezendeMaria Naruna Félix AlmeidaJoão Gabriel Missia SilvaGraziela Baptista Vidaurre
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2025-03-202025-03-20103500LONGITUDINAL ELECTRICAL RESISTIVITY PROFILES FOR NON-DESTRUCTIVE TREE TRUNKS INSPECTION
https://cerne.ufla.br/site/index.php/CERNE/article/view/3426
<p><strong>Background</strong>: The development and application of new technologies and solutions are extremely important to manage and monitor urban forestry to prevent accidents resulting from falls that often result in social and property damage. To evaluate the internal conditions of a tree, it is recommended to use indirect methods, both for the trunk and the root system. However, existing methods can predict trunk properties at the lower level in some situations, that can lead to a misinterpretation of the actual phytosanitary status of the evaluated specimen and cause the incomplete assessment. Thus, the present work aimed to evaluate, with acquisition and software development, the use of geophysical method of electrical resistivity (ER), with longitudinal profiles along the trunk, every 45º, for internal and non-destructive analysis of two specimens of Eucalyptus sp. and one of Pachira aquatica trees. In these trees, data were acquired and compared each other’s by ER, mechanical impulse tomography and resistograph.</p> <p><strong>Results</strong>: This approach allows for the investigation the entire length of the trunk, in a reduced time. From the results, it was possible to establish qualitative (from images) and some quantitative (physical property values) relationships between the ER, impulse tomography and resistography, by the internal image generated and the physical properties obtained.</p> <p><strong>Conclusion</strong>: Both in the interpretation of the generated images and the values obtained, they exhibited different characteristics of the studied wood, demonstrating the potential of the developed methodology for rapid and precise application in urban trees.</p>Vinicius Rafael Neris dos SantosBruno Araújo Furtado de MendonçaJoão Vicente de Figueiredo LatorracaMarcelo Farias Caetano
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2025-02-242025-02-24103426SEED BANK ANALYSIS AS AN INDICATOR OF ENVIRONMENTAL RECOVERY FOLLOWING THE FUNDÃO DAM DISASTER IN MARIANA, MINAS GERAIS
https://cerne.ufla.br/site/index.php/CERNE/article/view/3468
<p><strong>Background</strong>: The study aimed to assess the effectiveness of restoration practices following the Fundão disaster in the Brazilian Atlantic Forest, a key region for global biodiversity. Focusing on affected areas in Mariana, MG, the study used seed bank analysis as a key indicator to understand environmental recovery progress. The study compared active and passive restoration areas with a reference ecosystem by collecting 168 soil samples, which were subjected to germination in a greenhouse.</p> <p><strong>Results</strong>: The results revealed a high germination rate of herbaceous seeds, predominantly native species. Significant differences were found in floristic composition among the different restoration types studied. Areas undergoing active restoration showed greater similarity to the reference ecosystem, emphasizing the importance of Distance from Forest Fragment, Percentage of Forest Area in the Surroundings, and species diversity for restoration success.</p> <p><strong>Conclusion</strong>: The results highlight the crucial importance of landscape connectivity for the success of ecological restoration. Active restoration strategies play a fundamental role in accelerating environmental recovery and bringing degraded areas closer to the floristic composition of reference ecosystems.</p>Carlos Vinicius Gonçalves RibeiroAna Clara Gerônimo SilvaArtur Ferro de SouzaBruno Oliveira LafetáSoraya Alvarenga BotelhoLucas Amaral de Melo
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2025-02-192025-02-19103468