Scientia Forestalis最新文献

{"title":"Compostos presentes em óleo essencial de folhas de eucalipto podem ter relação com a resistência/suscetibilidade ao percevejo bronzeado (Thaumastocoris peregrinus)","authors":"Renata Couto Avila, L. H. Almeida, Juliana Pereira Leite, Tarcisio Tomás Cabral de Sousa, Farley Souza Ribeiro Menezes, C. F. Grael, V. Simões, J. Gonçalves, Leandro Marino, Ariadne Marques, Marcelo Luiz de Laia","doi":"10.18671/scifor.v50.38","DOIUrl":"https://doi.org/10.18671/scifor.v50.38","url":null,"abstract":"Bronze bug is one of the main eucalyptus cultivation pests worldwide. Even with so much damage, current control methods may not be suitable for all growing regions. However, it is possible to find some resistant genotypes to this insect in the field. Considering that some plants produce bioactive compounds which are antagonistic or attractive to insects, essential oils from Eucalyptus spp. clones’ leaves, resistant and susceptible to the bronze bug, were extracted and characterized. A total of 117 different compounds were found. Among these, 30 compounds showed some type of expression of interest. The presence of some compounds may be responsible for the resistance or attractiveness to T . peregrinus attack. The results are presented and discussed below.","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"473 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78189745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The environmental gradient influences the concentrations of carbon compounds in the biomass of Protium icicariba (DC.) Marchand in restinga area","authors":"Fabiano Caprini Volponi, Ramon Negrão Santos Junior, Felipe Machado Barreto, Fernanda Bonini dos Reis, João Pedro Zanardo de Andrade, G. Cuzzuol, P. C. Cavatte","doi":"10.18671/scifor.v50.26","DOIUrl":"https://doi.org/10.18671/scifor.v50.26","url":null,"abstract":"The environmental gradient influences the concentrations of carbon compounds in the biomass of Protium icicariba (DC.) Abstract The objective of this study was to analyze the concentrations of non-structural carbohydrates and cell wall polymers in Protium icicariba individuals along an environmental gradient of a Coastal Brazilian Atlantic Forest (restinga). The concentrations of non-structural carbohydrates (glucose, fructose, sucrose and starch) and cell wall polymers (cellulose, hemicellulose and lignin) were quantified in samples of stems, branches and leaves of individuals distributed in contrasting zones regarding the occurrence of floods [periodically floodable (PI), transitional (IT) and non-floodable (NI)]. Individuals from the non-flooded zone had higher concentrations of starch and hemicelluloses in the branches and leaves. On the other hand, cellulose and lignin concentrations were higher in the leaves of individuals from the periodically flooded and transitional zones. The variations in the concentrations of non-structural carbohydrates and cell wall polymers were mainly associated with water availability and plasticity of the species, in addition to possible influences of soil nutrient supply and the occurrence of herbivory. The sensitivity in the dynamics of the carbon molecules of P. icicariba in a diverse and spatially short environmental gradient, requires considerable plasticity of the species that, in the imminence of climatic changes, must favor its survival in the face of the imposition of new environmental filters.","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"40 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88215050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Equações de Preussner para a estimativa do volume de árvores de acácia-negra e estoque energético para os componentes toco e ponteira","authors":"Sérgio Costa Junior, Sylvio Péllico Netto, Alexandre Behling","doi":"10.18671/scifor.v50.36","DOIUrl":"https://doi.org/10.18671/scifor.v50.36","url":null,"abstract":"","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"33 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84404368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation cover arrangements in the recovery of degraded areas in the Brazilian semi-arid region: effect on soil chemical and physical properties","authors":"J.L.D. Alves, M. S. Rodrigues, R. G. Rodrigues, K. A. Silva, A. Lima, Patrícia Araujo de Souza, Filipe Bernard Ramos Moreira","doi":"10.18671/scifor.v50.34","DOIUrl":"https://doi.org/10.18671/scifor.v50.34","url":null,"abstract":"Vegetation cover arrangements in the recovery of degraded areas in the Brazilian semi-arid region: effect properties. Abstract Soil chemical and physical attributes can be considered one of the main indicators of soil quality and can be useful in monitoring and diagnosing the current condition of a degraded area. The objective of this study was to evaluate the use of herbaceous plants native to the semi-arid region in the recovery of degraded areas through changes in soil chemical and physical attributes in areas altered by the implementation of the São Francisco River Integration Project (SFIP). The experiment was carried out in Cabrobó, Brazil, in the North Axis. The herbaceous plants were sown in an intercropping, totaling 16 treatments (15 densities and the control) distributed in four blocks. Three soil samples were taken and soil chemical and physical attributes were determined. Two statistical analyses were performed, the first one in a randomized block design (RBD) with 16 treatments (densities) and four replications, and the second one, analyzing the sampling times (control, second and third samplings) in the four intercropping blocks. Changes in soil attributes due to area recovery practices were found in the surface layer. Although there was no statistical difference between the cover plants used, there was a temporal change in some chemical attributes, such as SOM, K + , Mg 2+, and P, which showed an increase between the control and the second sampling, in addition to a reduction between the second and third samplings. Thus, the recovery of the soils of areas altered by the SFIP should be carried out continuously until the stabilization of the ecological system. testemunha e a segunda amostragem. Dessa forma, a recuperação dos solos das áreas alteradas pelo PISF deverá ocorrer continuamente até a estabilização do sistema ecológico. Palavras-chave: Degradação ambiental; Raphiodon echinus ; Senna uniflora ; Tridax procumbens .","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"25 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84615394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial and seasonal variability of photosynthetically active radiation in the understory of a semi-decidual seasonal forest","authors":"J. Pezzopane, Genilda Canuto Amaral, J. Pezzopane, M. A. H. Machuca, R. N. Nóia Júnior","doi":"10.18671/scifor.v50.33","DOIUrl":"https://doi.org/10.18671/scifor.v50.33","url":null,"abstract":"Spatial and seasonal variability of photosynthetically active radiation in the understory of a semi-decidual seasonal forest. Scientia Abstract The Atlantic Forest is a global hotspot for biodiversity conservation; however, human actions threaten and unbalance the dynamics of the natural processes of the biome. The present study investigated the incidence of solar radiation within a fragment of semi deciduous seasonal forest in the area of the Atlantic Forest Biome in southeastern Brazil. In the four seasons of the year, the leaf area index (LAI) and photosynthetically active radiation (PAR) were measured in the understory vegetation. The measurements were made at one-meter height, in ten different locations in the forest fragment, with different terrain exposure and slope. The annual average LAI was 4.5 and the PAR transmissivity was 4.1%. However, the results showed a spatial and seasonal variability of the leaf area index in the studied forest fragment. The seasonal variation of PAR in the understory vegetation was due to the LAI and to the different slopes and terrain exposures. The spatial heterogeneity in PAR availability is indicative of high plant diversity in the forest fragment.","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73325194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Produção de mudas de Mogno (Swietenia macrophylla King) em substrato com resíduos de agroindústria","authors":"W. Neimog, Eliane Pereira Gomes, Marta Betânia Ferreira Carvalho, A. Mendonça","doi":"10.18671/scifor.v50.31","DOIUrl":"https://doi.org/10.18671/scifor.v50.31","url":null,"abstract":"","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"176 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77367989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forest cover analysis of a highly fragmented basin in northern Espírito Santo State, Brazil","authors":"L. Mendes, J. C. Milagre, Vicente Toledo Machado de Morais Júnior, Guilherme Gonçalves Coswosk","doi":"10.18671/scifor.v50.32","DOIUrl":"https://doi.org/10.18671/scifor.v50.32","url":null,"abstract":"analysis Abstract This study aimed to determine and analyze landscape ecology metrics to characterize the spatial pattern of fragments of native forest in São Mateus River basin, Espírito Santo State, Southeastern Brazil. Fragments were divided into four size classes called C1 (<5 ha), C2 (5-25 ha), C3 (25.10-50 ha) and C4 (>50 ha). Metrics were grouped according to their nature in (i) area and density, (ii) edge, (iii) shape, (iv) central area and (v) proximity. In total, 4,286 native forest fragments were identified, which represented 7.80% of total area of the basin. There is a predominance of fragments with more regular shapes, small (<25.10 ha) and, consequently, with greater edge effect. Results showed that the drainage basin studied is highly fragmented, which reinforces the need for strategies aimed at forest conservation and restoration of degraded forests in this region.","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"12 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73853137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estratégias de seleção genética para silvicultura clonal em Pinus caribaea var. hondurensis","authors":"Vanessa Ishibashi, Paulo César Flôres Júnior, Diego Tyszka Martinez, Alexandre Siqueira Guedes Coelho, A. R. Higa","doi":"10.18671/scifor.v50.30","DOIUrl":"https://doi.org/10.18671/scifor.v50.30","url":null,"abstract":"","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83568020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Classificação da capacidade produtiva de florestas inequiâneas por meio de mapas auto-organizáveis","authors":"Diego dos Santos Vieira, M. Oliveira, J. R. Gama, Bruno Oliveira Lafetá","doi":"10.18671/scifor.v50.28","DOIUrl":"https://doi.org/10.18671/scifor.v50.28","url":null,"abstract":"","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"109 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87248388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass modeling in a mixed plantation of Pinus taeda L. and Pinus elliottii Engelm","authors":"Renata Reis de Carvalho, Jonathan William Trautenmüller, S. V. Kohler, Edson Luiz Serpe, A. Corte, D. A. Silva, Afonso Figueiredo Filho","doi":"10.18671/scifor.v50.27","DOIUrl":"https://doi.org/10.18671/scifor.v50.27","url":null,"abstract":"The objective of this study was to compare three approaches to fit models to estimate forest biomass in a mixed plantation of Pinus taeda and Pinus elliottii with 16 years of age. The data came from the biomass of 60 trees sampled, 30 trees of Pinus taeda and 30 trees of Pinus elliottii. The aerial biomass was estimated through the regression analysis (independent adjustment and simultaneous adjustment) and the artificial intelligence method with the nearest neighbor techniques. The models were selected and compared based on the quality of the statistical indicators: adjusted determination coefficient (Raj), standard error of the relative estimate (Syx%), Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), Graphical analysis of residuals (%) and the ranking of the models. In the three approaches there were differences in total and component biomass estimates, being this difference associated with the heterogeneity of species (genetic variability by seminal origin), their components, and the lowest correlation of weight with diameter and height (allometric relationships). The technique of the nearest neighbor did not present satisfactory results, its use being recommended for a larger data base. Simultaneous adjustment was similar to the independent fitting method. However, the simultaneous equation has the advantage that when adding the biomass of the components, the result is compatible with the total biomass, which is more satisfactory for the estimation of total biomass.","PeriodicalId":54443,"journal":{"name":"Scientia Forestalis","volume":"158 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80037672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}