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Organic Matter in Soils with Anthropic Horizons in The Eastern Amazon, Pará (Brazil) 巴西帕尔<e:1>东亚马逊河流域土壤有机质与人类活动水平
IF 0.8
Floresta e Ambiente Pub Date : 2022-01-01 DOI: 10.1590/2179-8087-floram-2021-0091
Melania Merlo Ziviani, I. Reis, O. Tavares, Eudocio Rafael Otavio Silva, Otavio Augusto Queiroz dos Santos, L. Pinto, M. G. Pereira
{"title":"Organic Matter in Soils with Anthropic Horizons in The Eastern Amazon, Pará (Brazil)","authors":"Melania Merlo Ziviani, I. Reis, O. Tavares, Eudocio Rafael Otavio Silva, Otavio Augusto Queiroz dos Santos, L. Pinto, M. G. Pereira","doi":"10.1590/2179-8087-floram-2021-0091","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0091","url":null,"abstract":"The aim of this study was to evaluate the distribution of chemical and physical fractions of soil organic matter (SOM) in anthropic horizons of soil profiles in the west of Pará. The highest total organic carbon values were observed in the superficial horizons, especially in the antrópico LAd and antrópico CHd (45.0g kg-1). Were observed predominance of recalcitrant organic material. It appears that most of the C found in the SOM fractions is associated with C stabilization mechanisms such as the recalcitrance provided by the presence of pyrogenic coal, in addition to its ability to present carboxylic groups that increase its interaction with the mineral fraction of the soil, characterizing the mechanism of chemical protection. It is observed that the SOM fractions can function as indicators that contribute to better understanding of the soil carbon dynamics in soils with antrópico horizons.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87696395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Silvicultural Performance of Four Native Forest Species as a Function of Pruning Intensity 四种原生林种的造林性能与修剪强度的关系
IF 0.8
Floresta e Ambiente Pub Date : 2022-01-01 DOI: 10.1590/2179-8087-floram-2021-0100
Anatoly Queiroz Abreu Torres, R. Almeida, Raul Reis Assunção, Artur Ferro de Souza, Lucas Vieira dos Santos, L. A. Melo
{"title":"Silvicultural Performance of Four Native Forest Species as a Function of Pruning Intensity","authors":"Anatoly Queiroz Abreu Torres, R. Almeida, Raul Reis Assunção, Artur Ferro de Souza, Lucas Vieira dos Santos, L. A. Melo","doi":"10.1590/2179-8087-floram-2021-0100","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0100","url":null,"abstract":"Basic information about growth rate and response to silvicultural treatments on potential native species are bottlenecks for the wide use of these species for forest production. In this context, the objective of this work was to evaluate the silvicultural performance of four native species as a function of pruning intensity. The experimental design was completely randomized with ten replications and one plant per plot, in a 4 x 4 factorial scheme, four forest species, and four pruning intensities. At 30 and 42 months, height (H) and diameter at breast height (DBH) were evaluated, then the current annual increment (CAI) was calculated, as well as the mean annual increment (MAI) at 42 months. Guazuma ulmifolia showed higher growth in height and DBH compared to other species at both ages. The pruning resulted in a reduction of MAI in 0.15 cm. year-1 in DBH for every 25% of pruning intensity.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82620756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phenology of Tree Species in an Open Ombrophilous Forest: Bases for Silviculture and Conservation 阔叶林树种物候学研究:造林与保护的基础
IF 0.8
Floresta e Ambiente Pub Date : 2022-01-01 DOI: 10.1590/2179-8087-floram-2021-0030
R. J. C. Lima, I. T. G. Nepomuceno, Ricardo Ferreira-Júnior, Rafael Ricardo Vasconcelos da Silva
{"title":"Phenology of Tree Species in an Open Ombrophilous Forest: Bases for Silviculture and Conservation","authors":"R. J. C. Lima, I. T. G. Nepomuceno, Ricardo Ferreira-Júnior, Rafael Ricardo Vasconcelos da Silva","doi":"10.1590/2179-8087-floram-2021-0030","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0030","url":null,"abstract":"Phenological information contribute to silvicultural actions and conservation strategies. Here, we carried out the phenological monitoring of six tree species that were prominent in the structure of an open ombrophilous forest fragment in northeastern Brazil. Over two years, among September 2015 and August 2017, eight individuals of each species (48 trees in total) were visited every two weeks to record the reproductive and leaf phenophases, following the Fournier intensity scale. We calculated the intraspecific synchrony of the phenophases and the correlation of the phenophases of each species with meteorological variables (temperature, air precipitation and photoperiod). The species showed synchronous characteristics for the phenophases. Precipitation stood out in terms of a higher frequency of significant relationships with the reproductive phenophases. The results indicates that the end of the dry season is the most favorable period for seed collection and the monitoring of dispersers in this type of tropical forest.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88155771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Initial Growth and Morpho-Anatomical Development of “Jacaranda” at Different Levels of Luminosity 不同亮度下蓝花楹的初始生长和形态解剖发育
IF 0.8
Floresta e Ambiente Pub Date : 2021-10-18 DOI: 10.1590/2179-8087-FLORAM-2020-0091
Magnólia Martins Alves, M. B. Albuquerque, R. R. P. Cruz
{"title":"Initial Growth and Morpho-Anatomical Development of “Jacaranda” at Different Levels of Luminosity","authors":"Magnólia Martins Alves, M. B. Albuquerque, R. R. P. Cruz","doi":"10.1590/2179-8087-FLORAM-2020-0091","DOIUrl":"https://doi.org/10.1590/2179-8087-FLORAM-2020-0091","url":null,"abstract":"Abstract Thus, the objective of the research was to evaluate the initial growth and development of seedlings under Platymiscium floribundum at different levels of luminosity. The experimental design was completely randomized in a 4 x 10 factorial scheme (four levels of shade: full sun, 50%, 65% and 80% with ten replications per treatment. The height, number of leaves was evaluated monthly. At the end of the experiment at 180 days, leaf dry matter, stems, roots, and dry matter. In addition, measurements were made of the variables related to gas exchange and plant anatomy of leaves. The results obtained were observed higher growth and developed satisfactorily at full sun), without presenting morphological changes. For the gas exchange did not differ statistically. It is concluded that the initial growth of P. floribundum seedlings was superior in the light level in full sun, providing favorable conditions for their development.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76055814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Use of Populus deltoides wood in the Production of MDP and HDP 三角杨木在MDP和HDP生产中的应用
IF 0.8
Floresta e Ambiente Pub Date : 2021-08-27 DOI: 10.1590/2179-8087-floram-2020-0090
Pâmela Caroline Lau Sozim, É. Hillig, R. Marchesan, F. S. Ferro
{"title":"Use of Populus deltoides wood in the Production of MDP and HDP","authors":"Pâmela Caroline Lau Sozim, É. Hillig, R. Marchesan, F. S. Ferro","doi":"10.1590/2179-8087-floram-2020-0090","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2020-0090","url":null,"abstract":"Abstract The aimed to evaluate the properties of MDP and HDP panels, produced with pure Populus deltoides or in a mixture with Pinus taeda, together with urea-formaldehyde resin. The density and chemical properties of this wood with 8 and 12 years of age were determined, which were used for the production of panels with nominal density of 0.65 and 0.90 g.cm-3. Water absorption and thickness swelling tests were performed after 2 and 24 hours of immersion, as well as static bending and perpendicular tensile. Populus deltoides wood was classified as low-density in both ages and presented chemical properties similar to Pinus taeda. Mechanical properties obtained for the panels produced reached the minimum requirements values established by the standards NBR 14810-2 and ANSI A208.1, demonstrating the potential use of wood species for the production of MDP and HDP panels, at both ages studied and used pure or mixed with Pinus taeda wood.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81265429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lumber Potential of Tropical Species in a Mixed Plantation:Assessment at 50 Months 混交林热带树种木材潜力:50个月评估
IF 0.8
Floresta e Ambiente Pub Date : 2021-08-09 DOI: 10.1590/2179-8087-floram-2021-0012
Amanda Arantes Junqueira, G. C. Santos, Osmar de Freitas Neves Junior, Carlos Eduardo Silveira da Silva, D. C. Batista, A. M. Carvalho
{"title":"Lumber Potential of Tropical Species in a Mixed Plantation:Assessment at 50 Months","authors":"Amanda Arantes Junqueira, G. C. Santos, Osmar de Freitas Neves Junior, Carlos Eduardo Silveira da Silva, D. C. Batista, A. M. Carvalho","doi":"10.1590/2179-8087-floram-2021-0012","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0012","url":null,"abstract":"Abstract The use of tropical species in forest plantations is an alternative to supply the demand of good quality wood. However, information regarding the performance of planted tropical species is scarce. The aim of this study was to provide an assessment of the lumber potential of Cariniana legalis (“jequitiba-rosa”), Zeyheria tuberculosa (“ipe-felpudo”) and Cordia trichotoma (“louro-pardo”) in a forest plantation. Three trees per species were sampled at age of 50 months, planted in a mixed stand with 2 x 4 m spacing in Porto Seguro, Bahia, Brazil. We assessed characteristics of the trees, the logs, lumber yield, and partial volumetric shrinkage of wood. Total volumetric shrinkage of ipe-felpudo, jequitiba-rosa and louro-pardo would be around 12.80%, 13.40% and 11.58%, respectively. Among the three species analyzed, louro-pardo had the best performance, followed by ipe-felpudo, while jequitiba-rosa had the worst performance. All species had good performance regarding log quality and dimensional stability of wood.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86192686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tolerance to Desiccation of Diospyros inconstans Jacq. (Ebenaceae) Seeds at Different Maturity Stages 黄花蔷薇对干枯的耐性。(Ebenaceae)不同成熟期的种子
IF 0.8
Floresta e Ambiente Pub Date : 2021-08-04 DOI: 10.1590/2179-8087-floram-2020-0018
Edvânia da Silva Carvalho, M. O. Souza, Josival Santos Souza, da Silva, Jiovana Pereira Amorim Santos, A. Mendonça
{"title":"Tolerance to Desiccation of Diospyros inconstans Jacq. (Ebenaceae) Seeds at Different Maturity Stages","authors":"Edvânia da Silva Carvalho, M. O. Souza, Josival Santos Souza, da Silva, Jiovana Pereira Amorim Santos, A. Mendonça","doi":"10.1590/2179-8087-floram-2020-0018","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2020-0018","url":null,"abstract":"Abstract Classifying seeds in terms of desiccation tolerance is the first step in determining the potential and most appropriate conditions for storage. This study aimed to characterize the tolerance to desiccation of Diospyros inconstans seeds from fruits at different maturity stages. Germination tests were performed in a 3 x 6 factorial scheme, with seeds from fruits at three maturity stages (unripe, intermediate and ripe) and six moisture contents (initial, 20%, 15%, 10%, 5% and 2.5%). Accumulated germination was analyzed by the nonlinear models Gompertz and Logistic. The percentages of normal seedlings and unviable seeds were subjected to analyses of variance and regression. Diospyros inconstans seeds are tolerant to desiccation. The tolerance is higher in seeds from fruit with intermediate maturation than unripe and ripe fruits.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73343657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds 贮藏隐虫的生理和细胞变化。种子
IF 0.8
Floresta e Ambiente Pub Date : 2021-04-26 DOI: 10.1590/2179-8087-FLORAM-2020-0067
O. Tonetti, W. Pereira, A. José, J. Faria
{"title":"Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds","authors":"O. Tonetti, W. Pereira, A. José, J. Faria","doi":"10.1590/2179-8087-FLORAM-2020-0067","DOIUrl":"https://doi.org/10.1590/2179-8087-FLORAM-2020-0067","url":null,"abstract":"Abstract Some species of the Lauraceae family produce seeds that are generally sensitive to desiccation, which makes them difficult to store. The objective of this study was to characterize changes in seed quality of C. aschersoniana from two lots, as well in the physiological and cellular aspects during 12 months of storage. Seeds were stored with their original moisture content (MC) or after pre-drying to 35% MC in a cold chamber (5 °C) at a relative humidity of 40%. Seeds were sampled and tested at time 0, 3, 6 and 12 months of storage regarding to moisture content, germination and ultrastructural features. The seeds were dispersed with dormancy that was overcame by the cold storage condition and the reserves in undried seeds were partly consumed during storage. Both undried and pre-dried seeds remained viable for at least 12 months.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86462227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure and Tree Diversity in a Mixed Ombrophilous Forest Remnant, Southern Brazil 巴西南部混交林残林的结构和树木多样性
IF 0.8
Floresta e Ambiente Pub Date : 2021-01-29 DOI: 10.1590/2179-8087-FLORAM-2020-0064
Manuela Gazzoni dos Passos, G. Prado, C. Fontana, E. Bianchini
{"title":"Structure and Tree Diversity in a Mixed Ombrophilous Forest Remnant, Southern Brazil","authors":"Manuela Gazzoni dos Passos, G. Prado, C. Fontana, E. Bianchini","doi":"10.1590/2179-8087-FLORAM-2020-0064","DOIUrl":"https://doi.org/10.1590/2179-8087-FLORAM-2020-0064","url":null,"abstract":"Abstract This study aimed to determine the tree structure, floristic composition and species diversity in the Araucaria State Park, southern Brazil. We allocated 100 plots of 100 m2 (1 ha) each one, and we recorded all trees with diameters at breast height ≥ 5 cm. We sampled 1368 individuals of 106 species, 75 genera and 44 families. Fabaceae, Lauraceae and Myrtaceae showed the greatest richness of species. The diversity of tree species was high (H ‘= 3.96), although the observed richness was less than the estimated one. The basal area was 46.88 m2 ha-1. We observed an intrinsic association between Araucaria angustifolia and Nectandra megapotamica, and a predominance of secondary and zoochorous (> 70%) species. Endangered and vulnerable species in the Santa Catarina state, such as Araucaria angustifolia, Cedrela fissilis, Dicksonia sellowiana and Ocotea porosa were sampled in the Park, highlighting its importance for the conservation of the Mixed Ombrophylous Forest.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85396931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Comparing Data Collection Methods in Phenological Evaluations of Himatanthus drasticus 柽柳物候评价资料收集方法的比较
IF 0.8
Floresta e Ambiente Pub Date : 2021-01-27 DOI: 10.1590/2179-8087-floram-2020-0060
Marília Grazielly Mendes dos Santos, L. A. P. Miranda, L. S. Funch
{"title":"Comparing Data Collection Methods in Phenological Evaluations of Himatanthus drasticus","authors":"Marília Grazielly Mendes dos Santos, L. A. P. Miranda, L. S. Funch","doi":"10.1590/2179-8087-floram-2020-0060","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2020-0060","url":null,"abstract":"We present a case study focusing on collection methods and phenological data analyses. Qualitative, semi-quantitative, and quantitative approaches were compared in terms of their efficiencies for describing flowering and fruiting intensities and phenophase synchrony in Himatanthus drasticus growing in a gallery forest in the Chapada Diamantina mountains, Brazil. Our results showed that phenophase intensity and synchrony were respectively each best. Determined using quantitative and qualitative methods We reinforce the importance of clearly defining research aims, as quantitative data collections require considerably greater field efforts than qualitative evaluations, especially concerning forest trees.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84571461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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