Pub Date : 2023-01-13DOI: 10.1590/2179-8087-floram-2023-0041
W. Fonseca, S. V. Martins, P. M. Villa
The objective of this study was to evaluate plant cover and dry mass produced by green manures and their influence on the chemical attributes of soil for the ecological restoration of an area around bauxite mine environment in Southeast Brazil. Soil preparation, chemical fertilization and sowing of three species of green manures were carried out: Cajanus cajan , Crotalaria juncea and Stylosanthes guianensis . In general, C. cajan and C. juncea showed the best performance in plant cover. C. cajan and S. guianensis produced more phytomass. Green manures were efficient to promote rapid plant cover and increase in soil organic matter and total-N contents in all treatments. Therefore, green manure is a viable alternative that contributes to the success of ecological restoration projects in areas in the bauxite mining environment.
{"title":"Green Manure as an Alternative for Soil Recovery in a Bauxite Mining Environment in Southeast Brazil","authors":"W. Fonseca, S. V. Martins, P. M. Villa","doi":"10.1590/2179-8087-floram-2023-0041","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2023-0041","url":null,"abstract":"The objective of this study was to evaluate plant cover and dry mass produced by green manures and their influence on the chemical attributes of soil for the ecological restoration of an area around bauxite mine environment in Southeast Brazil. Soil preparation, chemical fertilization and sowing of three species of green manures were carried out: Cajanus cajan , Crotalaria juncea and Stylosanthes guianensis . In general, C. cajan and C. juncea showed the best performance in plant cover. C. cajan and S. guianensis produced more phytomass. Green manures were efficient to promote rapid plant cover and increase in soil organic matter and total-N contents in all treatments. Therefore, green manure is a viable alternative that contributes to the success of ecological restoration projects in areas in the bauxite mining environment.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"86 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76208460","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}
Pub Date : 2023-01-01DOI: 10.1590/2179-8087-floram-2023-0010
Edicleife Lino Santos, Alan Cézar Bezerra, Damião Alves Silva, Anderson Santos Silva, Cristina Rodrigues Nascimento, Rodrigo Ferraz Jardim Marques
Conservation units are specially protected territorial spaces whose primary goals are to preserve biodiversity and natural resources. Thus, this paper aims to investigate the spatial-temporal dynamics of land-use and land-cover classes and hotspots in a conservation unit in the Caatinga region. We assessed land-use and land-cover classes based on Mapbiomas’s data from 2002 to 2021. Then, we analyzed the hot spots made available by Programa Queimadas database, for the rainy and dry seasons, as well as data recorded on a yearly basis between 2002 and 2021. The class of agricultural activities in the buffer zone has increased; changes in the hotspots’ distribution pattern were observed, such as displacement from the Park’s central area towards the buffer zone’s. Furthermore, 12 hotspots tended to increase in the dry season, over the 20-year assessment process. Insights into the growth of agriculture and changing hotspot patterns assist in creating more effective conservation strategies.
{"title":"Assessment of Land Use, Cover Changes, and Fire Hotspots in a Conservation Unit: A 20-Year Analysis","authors":"Edicleife Lino Santos, Alan Cézar Bezerra, Damião Alves Silva, Anderson Santos Silva, Cristina Rodrigues Nascimento, Rodrigo Ferraz Jardim Marques","doi":"10.1590/2179-8087-floram-2023-0010","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2023-0010","url":null,"abstract":"Conservation units are specially protected territorial spaces whose primary goals are to preserve biodiversity and natural resources. Thus, this paper aims to investigate the spatial-temporal dynamics of land-use and land-cover classes and hotspots in a conservation unit in the Caatinga region. We assessed land-use and land-cover classes based on Mapbiomas’s data from 2002 to 2021. Then, we analyzed the hot spots made available by Programa Queimadas database, for the rainy and dry seasons, as well as data recorded on a yearly basis between 2002 and 2021. The class of agricultural activities in the buffer zone has increased; changes in the hotspots’ distribution pattern were observed, such as displacement from the Park’s central area towards the buffer zone’s. Furthermore, 12 hotspots tended to increase in the dry season, over the 20-year assessment process. Insights into the growth of agriculture and changing hotspot patterns assist in creating more effective conservation strategies.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446872","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}
Pub Date : 2023-01-01DOI: 10.1590/2179-8087-floram-2023-0022
Albasri Albasri, Faisal Danu Tuheteru, Husna Husna, Sugeng Budiharta, Edy Jamal Tuheteru, Sri Mulyono, Tedi Yunanto, Veni Karlin
{"title":"Composition, Structure and Diversity of Vegetation on Asphalt Post-Mining Sites in Buton Island, Indonesia","authors":"Albasri Albasri, Faisal Danu Tuheteru, Husna Husna, Sugeng Budiharta, Edy Jamal Tuheteru, Sri Mulyono, Tedi Yunanto, Veni Karlin","doi":"10.1590/2179-8087-floram-2023-0022","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2023-0022","url":null,"abstract":"","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135106525","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}
Pub Date : 2023-01-01DOI: 10.1590/2179-8087-floram-2022-0092
Luna Santiago, Colin Robert Beasley
Rich freshwater biodiversity is threatened by increasing deforestation and disorderly urbanization throughout the Brazilian Amazon, especially in streams and creeks, leading to loss of aquatic habitats. Biological information combined with habitat and water quality are effective tools for rapid assessment. The impact of increasing urbanization was assessed in the Cereja River, eastern Amazonia using a Riparian Habitat Diversity Index (RHDI), benthic macroinvertebrate structure and water and sediment variables in ten areas along the Cereja using multivariate analyzes. Increasing urbanization is associated with lower RHDI, abundance, diversity and equity of benthic macroinvertebrates, higher conductivity, pH, temperature, width and percentage gravel. This information is useful for rapid identification of impacts, assessment of recovery of degraded areas and maintenance of non-degraded areas along urban streams.
{"title":"Benthic Macroinvertebrates Associated with Riparian Habitat Structural Diversity in an Eastern Amazon Stream Urbanization Gradient","authors":"Luna Santiago, Colin Robert Beasley","doi":"10.1590/2179-8087-floram-2022-0092","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2022-0092","url":null,"abstract":"Rich freshwater biodiversity is threatened by increasing deforestation and disorderly urbanization throughout the Brazilian Amazon, especially in streams and creeks, leading to loss of aquatic habitats. Biological information combined with habitat and water quality are effective tools for rapid assessment. The impact of increasing urbanization was assessed in the Cereja River, eastern Amazonia using a Riparian Habitat Diversity Index (RHDI), benthic macroinvertebrate structure and water and sediment variables in ten areas along the Cereja using multivariate analyzes. Increasing urbanization is associated with lower RHDI, abundance, diversity and equity of benthic macroinvertebrates, higher conductivity, pH, temperature, width and percentage gravel. This information is useful for rapid identification of impacts, assessment of recovery of degraded areas and maintenance of non-degraded areas along urban streams.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"363 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134982826","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}
Pub Date : 2023-01-01DOI: 10.1590/2179-8087-floram-2022-0043
Bruna Maria Roldão Lopes, Rayleen Whaiti Lopes da Silva, Clarissa Fernandes, Oriales Rocha Pereira, Joaquim Manoel da Silva
This study aimed to investigate the physical characteristics of pequiá fruits in the Cerrado areas of Nova Xavantina-MT, and to determine the influence of native vegetation on fruit biometry and productivity. The research question was whether proximity to fragments of native vegetation increases the productivity of pequiá fruit. In 2017 and 2018, 40 ripe fruits that had fallen to the ground were collected from three locations, two of which were close to native vegetation and one of which was close to crops and pastures. The highest values were observed in fruits collected in 2018, when there was more rainfall, and in fruits from the locations close to native vegetation, indicating that the presence of native vegetation can provide ecosystem services that promote the productivity of pequiá fruits. These findings have important implications for the conservation and management of Cerrado ecosystems.
{"title":"Physical Characteristics and Productive Performance of Pequiá Fruit Under the Influence of Natural Vegetation","authors":"Bruna Maria Roldão Lopes, Rayleen Whaiti Lopes da Silva, Clarissa Fernandes, Oriales Rocha Pereira, Joaquim Manoel da Silva","doi":"10.1590/2179-8087-floram-2022-0043","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2022-0043","url":null,"abstract":"This study aimed to investigate the physical characteristics of pequiá fruits in the Cerrado areas of Nova Xavantina-MT, and to determine the influence of native vegetation on fruit biometry and productivity. The research question was whether proximity to fragments of native vegetation increases the productivity of pequiá fruit. In 2017 and 2018, 40 ripe fruits that had fallen to the ground were collected from three locations, two of which were close to native vegetation and one of which was close to crops and pastures. The highest values were observed in fruits collected in 2018, when there was more rainfall, and in fruits from the locations close to native vegetation, indicating that the presence of native vegetation can provide ecosystem services that promote the productivity of pequiá fruits. These findings have important implications for the conservation and management of Cerrado ecosystems.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135651076","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}
Pub Date : 2022-01-01DOI: 10.1590/2179-8087-floram-2022-0034
Carlos Antônio Araújo de Freitas, Rodrigo Camara de Souza, M. G. Pereira, M. Caldeira, D. R. Couto, S. H. Kunz, J. Moreau, H. M. Dias, D. R. Momolli
{"title":"Contribution of Pseudobombax aff. petropolitanum to Nutrient Cycling in Woody Vegetation from a Neotropical Inselberg","authors":"Carlos Antônio Araújo de Freitas, Rodrigo Camara de Souza, M. G. Pereira, M. Caldeira, D. R. Couto, S. H. Kunz, J. Moreau, H. M. Dias, D. R. Momolli","doi":"10.1590/2179-8087-floram-2022-0034","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2022-0034","url":null,"abstract":"","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"29 20","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72587299","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}
Pub Date : 2022-01-01DOI: 10.1590/2179-8087-floram-2021-0032
M. M. M. Ivanov, Vynicius Barbosa de Oliveira, R. D. S. Leite, Nicholyh Matsho Oliveira do Vale, Mauro Alessandro Karasinski, G. S. T. Fernandes
{"title":"Seasonal Dynamics of the Phenology of Native Species from the Seasonally Dry Tropical Forest","authors":"M. M. M. Ivanov, Vynicius Barbosa de Oliveira, R. D. S. Leite, Nicholyh Matsho Oliveira do Vale, Mauro Alessandro Karasinski, G. S. T. Fernandes","doi":"10.1590/2179-8087-floram-2021-0032","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0032","url":null,"abstract":"","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"47 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82384930","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}
Pub Date : 2022-01-01DOI: 10.1590/2179-8087-floram-2022-0027
Ricardo Vicente Ferreira, Silvia Cristina de Castro, Juarez Antonio Gomes Júnior, Felipe Ivonez Borges Alexandre, M. Martines
{"title":"Environmental Fragility in a Permanent Preservation Area","authors":"Ricardo Vicente Ferreira, Silvia Cristina de Castro, Juarez Antonio Gomes Júnior, Felipe Ivonez Borges Alexandre, M. Martines","doi":"10.1590/2179-8087-floram-2022-0027","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2022-0027","url":null,"abstract":"","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"11 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76424990","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}
Pub Date : 2022-01-01DOI: 10.1590/2179-8087-floram-2021-0082
Geisislaine do Carmo Reis Araújo, R. Almeida, L. V. Santos, Anatoly Queiroz Abreu Torres, Oclizio Silva, L. A. Melo, Nelson Venturin
{"title":"Initial Development of Acrocarpus fraxinifolius in Function of Soil Preparation and Phosphate Mineral Fertilization","authors":"Geisislaine do Carmo Reis Araújo, R. Almeida, L. V. Santos, Anatoly Queiroz Abreu Torres, Oclizio Silva, L. A. Melo, Nelson Venturin","doi":"10.1590/2179-8087-floram-2021-0082","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2021-0082","url":null,"abstract":"","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"25 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80167043","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}
Pub Date : 2022-01-01DOI: 10.1590/2179-8087-floram-2022-0019
F. Arroyo, I. F. Fraga, Larissa Soriani Zanini Ribeiro Soares, V. Aquino, H. Ruthes, F. Mascarenhas, H. Santos, A. Christoforo, F. Lahr
According to the Brazilian standard for wooden structures, strength and stiffness increase linearly with decreasing moisture; however, as wood is a natural, heterogeneous and anisotropic material, certain strength and stiffness properties may not be affected even by large differences in moisture. Therefore, this work aims to evaluate the reliability of the resistance and rigidity transformation equations as a function of moisture, used to correct the properties when the test was not performed at 12% moisture. Furthermore, it was checked whether the humidity affects the properties of the studied species. Of the 15 properties analyzed, 2 did not show changes when analyzed at the fiber saturation point and at 12% moisture. Additionally, the correction equations of the Brazilian standard showed errors of up to 24% in the estimation of properties at 12% moisture. Thus, the need to correct the Brazilian standard for wooden structures is evident.
{"title":"Influence of Moisture on Physical and Mechanical Properties of Pouteria Pachycarpa Wood","authors":"F. Arroyo, I. F. Fraga, Larissa Soriani Zanini Ribeiro Soares, V. Aquino, H. Ruthes, F. Mascarenhas, H. Santos, A. Christoforo, F. Lahr","doi":"10.1590/2179-8087-floram-2022-0019","DOIUrl":"https://doi.org/10.1590/2179-8087-floram-2022-0019","url":null,"abstract":"According to the Brazilian standard for wooden structures, strength and stiffness increase linearly with decreasing moisture; however, as wood is a natural, heterogeneous and anisotropic material, certain strength and stiffness properties may not be affected even by large differences in moisture. Therefore, this work aims to evaluate the reliability of the resistance and rigidity transformation equations as a function of moisture, used to correct the properties when the test was not performed at 12% moisture. Furthermore, it was checked whether the humidity affects the properties of the studied species. Of the 15 properties analyzed, 2 did not show changes when analyzed at the fiber saturation point and at 12% moisture. Additionally, the correction equations of the Brazilian standard showed errors of up to 24% in the estimation of properties at 12% moisture. Thus, the need to correct the Brazilian standard for wooden structures is evident.","PeriodicalId":46895,"journal":{"name":"Floresta e Ambiente","volume":"8 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79274480","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}
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