Tarcísio Rocha Vicente de Deus, V. Giongo, A. M. Salviano, M. D. S. Santana, V. A. D. Silva, Tatiane Cezario dos Santos
{"title":"Selection of green manures to provide ecosystem services in a semi-arid environment","authors":"Tarcísio Rocha Vicente de Deus, V. Giongo, A. M. Salviano, M. D. S. Santana, V. A. D. Silva, Tatiane Cezario dos Santos","doi":"10.5327/z2176-94781268","DOIUrl":"https://doi.org/10.5327/z2176-94781268","url":null,"abstract":"Green manure is a soil management technique which provides several benefits to agroecosystems, improving the chemical, physical and biological quality of the soil, allowing them to provide different ecosystem services. Thus, the purpose of this work was to select green manures to compose multifunctional agroecosystems that provide ecosystem services in a semi-arid environment through the addition of biomass, C and N, and nutrient cycling. Thus, 29 treatments were evaluated in two cultivation cycles, using 14 species of legumes, oilseeds and grasses, distributed in single and intercropped crops. The green manures were cut at 70 days after sowing, and samples of the shoot and root parts were collected, with the production of fresh and dry biomass and the N, P, K, Ca, Mg and S levels being evaluated. C and biomass from rhizodeposition were also estimated. From these data, the accumulation of nutrients in the shoot and root biomass was calculated. Data were compared using descriptive and multivariate statistics. There is a positive relationship between the growing number of species used in consortium and the greater production of shoot and root biomass, favoring the increase in the capacity of the agroecosystem to provide provision and regulation services, with the latter being associated with climate change mitigation measures, highlighting the importance of biodiversity.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128114955","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}
Roberta Giraldi Romano, Amanda Silveira Carbone, C. Kniess, Gérsica Moraes Nogueira da Silva, J. C. Gomes, Maiara Gabrielle de Souza Melo, V. C. Barbosa, Maria do Carmo Sobral, Arlindo Philippi, C. A. Sampaio
{"title":"Impacto das Ciências Ambientais na Agenda 2030 da ONU: desafios e avanços a partir da experiência da formação de clusters temáticos","authors":"Roberta Giraldi Romano, Amanda Silveira Carbone, C. Kniess, Gérsica Moraes Nogueira da Silva, J. C. Gomes, Maiara Gabrielle de Souza Melo, V. C. Barbosa, Maria do Carmo Sobral, Arlindo Philippi, C. A. Sampaio","doi":"10.5327/z2176-94781607","DOIUrl":"https://doi.org/10.5327/z2176-94781607","url":null,"abstract":"Os Objetivos de Desenvolvimento Sustentável (ODS) que compõem a Agenda 2030 da Organização das Nações Unidas (ONU) constituem-se como ferramenta significativa para avançar na agenda da sustentabilidade em diferentes níveis, desde o local até o global. A área das Ciências Ambientais da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) tem propiciado diálogos sobre o tema e vem construindo iniciativas que buscam mensurar a contribuição da pós-graduação brasileira quanto à sua contribuição no alcance dos ODS. Este reporte técnico teve o objetivo de apresentar os resultados do II Encontro Acadêmico “Impacto das Ciências Ambientais na Agenda 2030”, realizado nos dias 8 e 9 de junho de 2022, no Instituto de Estudos Avançados da Universidade de São Paulo (IEA/USP), e refletir sobre as ações para a implementação da Agenda 2030 nas Ciências Ambientais no Brasil. O evento teve como objetivo discutir a incorporação dos ODS nas atividades de ensino, pesquisa e extensão e dar início à iniciativa de formação de clusters temáticos (CTs), espaços coletivos que estimulam conexões interinstitucionais e interdisciplinares.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115015778","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}
{"title":"Why and where to publish","authors":"Valdir Fernandes","doi":"10.5327/z2176-94781439","DOIUrl":"https://doi.org/10.5327/z2176-94781439","url":null,"abstract":"This reflection on why and where to publish assumes that scientific communication is an essential element of the dialogic construction of knowledge in the context of each community. Publishing at any cost perverts this process, resulting in distorted metrics and opening the way for dubious editorial practices.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115224936","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}
D. Gomes, M. Nascimento, Fabianne Mesquita Pereira, G. Dias, Rafael Ribeiro Meireles, Luis Gelisson Nascimento de Souza, Ailson Renan Santos Picanço, H. Ribeiro
{"title":"Flow variability in the Araguaia River Hydrographic Basin influenced by precipitation in extreme years and deforestation","authors":"D. Gomes, M. Nascimento, Fabianne Mesquita Pereira, G. Dias, Rafael Ribeiro Meireles, Luis Gelisson Nascimento de Souza, Ailson Renan Santos Picanço, H. Ribeiro","doi":"10.5327/z2176-94781358","DOIUrl":"https://doi.org/10.5327/z2176-94781358","url":null,"abstract":"The climatic extremes and the dynamics of land use and cover can cause changes in river flow. The objective of this work was to analyze the flow of the Araguaia River under the effects of extreme years associated with the dynamics of land use in the Araguaia Watershed (AW) from 1981 to 2019. The land use and land cover product were based on the MapBiomas Project classification, imported from the Google Earth Engine. The measured rainfall and flow data were obtained from the National Water Agency. In contrast, the estimated rainfall was based on the data Climate Hazards Group InfraRed Precipitation with Stations. The precipitation climatology showed the lowest values (1,464.9–1,720.4 mm) in the south-central sector, and the highest (1,720.4–2,014.6 mm) rainfall amounts were observed in the north sector. However, it was identified in the five pluviometric stations with a high variability of precipitation, with an emphasis on the extreme years. Such wet and dry years were marked by a large difference in water availability. There was an intense reduction of the Amazon and Cerrado biomes by 31,641.8 and 42,618.9 km², respectively, mainly due to the expansion of 18,936.1 km² of agricultural activities and 47,494 km² of pasture. The fluviometric variability showed a decreasing trend, mainly in the past 15 years. Public actions, such as the intensification of environmental policies, monitoring focusing on the most compromised and strategic areas such as the headwaters of the Araguaia River, can minimize the impacts caused by climate extremes and deforestation.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127296690","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}
Wander Clay Pereira Dutra, Ronaldo Fia, C. B. M. Ribeiro
{"title":"Water quality modeling in the Paraibuna River in Juiz de Fora/MG: diagnosis and prognosis","authors":"Wander Clay Pereira Dutra, Ronaldo Fia, C. B. M. Ribeiro","doi":"10.5327/z2176-94781288","DOIUrl":"https://doi.org/10.5327/z2176-94781288","url":null,"abstract":"To support the implementation of instruments of the National Water Resources Policy, as well as the new legal framework for basic sanitation, the environmental assessment of water courses becomes important to guide the planning, monitoring and management of a watershed. Thus, this research aims to contribute to the creation of information structures about the Paraibuna River and its water basin in the central and more urbanized region of Juiz de Fora/MG. The QUAL2K model was used considering two different hydrological periods. The study considered water quality data for the following variables: dissolved oxygen, biochemical oxygen demand, temperature, electrical conductivity and pH. The flow rates in the Paraibuna River and its tributaries were quantified using an Acoustic Doppler Current Profile (ADCP) and a hydrometric windmill. With the calibrated model, future water quality scenarios were simulated for the moment when the new sewage treatment plants are operating at maximum capacity, in accordance with the Juiz de Fora’s Municipal Plan for Basic Sanitation Service. The results show that the Paraibuna River, in the central section of Juiz de Fora, provided data with reduced water quality, mainly in the dry season, leading us to conclude that the flow had a direct influence on the water quality. As for the simulated scenarios, we reached the conclusion that the best result obtained for the sewage treatment of the Paraibuna River will be achieved when the treatment conditions of scenario 3 are applied. This scenario includes the Wastewater Treatment Plants of União Indústria, Santa Luzia, and the renovation of the Wastewater Treatment Plant of Barbosa Laje, with an expected reduction of 90% of the polluting load in the streams covered by the present work, and a reduction of 50% of the organic load upstream of the section under study.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117052698","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}
G. C. Barreto, Manuela Ravina da Silva, D. Nascimento, T. Z. Serafini, R. Medeiros
{"title":"Institutional frameworks for human dimensions: reflections for marine protected areas in Brazil","authors":"G. C. Barreto, Manuela Ravina da Silva, D. Nascimento, T. Z. Serafini, R. Medeiros","doi":"10.5327/z217694781027","DOIUrl":"https://doi.org/10.5327/z217694781027","url":null,"abstract":"Human Dimensions (HDs) have appeared in the scientific literature linked to the application of alternative approaches to natural resource management. National and international institutions (policies, guidelines, and global goals) guided these discussions on Marine Protected Areas (MPAs). The study aimed at relating these frameworks to the components of HDs. In this sense, a literature review was carried out based on criteria established by Barreto et al. (2020), guiding the selection of 92 peer-reviewed articles complemented by documents related to institutional frameworks. The analysis linked the institutional aspects selected to the components of HDs outlined in the literature. The research revealed the theory of the commons as an influencer in creating the concept of HDs, showing that its understanding goes beyond the univocal idea of human dimensions as the control and regulation of human behavior. Furthermore, five challenges for the integration of HDs in management approaches are highlighted from the connection between the institutional frameworks and the components of HDs. There are signs of a management model in transition that considers and emphasizes human dimensions; however, technocratic and centralizing approaches still prevail.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122320878","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}
{"title":"Assessment of economic impacts in flood events in Lages/SC, Brazil","authors":"Victor Hugo da Cruz Primo, Sílvio Luís Rafaeli","doi":"10.5327/z2176-94781486","DOIUrl":"https://doi.org/10.5327/z2176-94781486","url":null,"abstract":"Flood processes become increasingly harmful to communities due to factors such as climate change and land use. This study aims to evaluate the economic damages of flood events in an area of the urban basins of Lages/SC. Thus, four plans were considered for economic evaluation: one referring to conditions without protective measures and three with the application of elevation of structures at different heights, as well as two scenarios of the evolution of urban occupation. The rainfalls were obtained through the Gumbel probabilistic model to estimate the maximum accumulated precipitations over 5 days, with the hydrological modeling carried out at the HEC-HMS. The hydrodynamic modeling was performed in HEC-RAS through the simulation of a 1D model. The HEC-FDA model was used to perform the risk reduction analysis of damage caused by floods, where the expected annual damages (EAD) were calculated for the four proposed plans as well as for the urban growth scenarios. The results showed that the application of the mitigating measure of raising the structures reduced the EAD by up to 83.10%. As for the scenario of the evolution of urban growth, there was an increase in EAD of 62.09%, in the interval of 20 years. The HEC-FDA model has been demonstrated as good software for assessing the economic damage of floods in different scenarios, showing results that can help decision-makers in the development of public policies.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121820006","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}
Matheus Siqueira Piol, J. A. T. Reis, Murilo Brazzali Rodrigues Rodrigues, A. Mendonça, Fernando das Graças Braga da Silva, Alex Takeo Yasumura Lima Silva
{"title":"Estimative of reference flows for water resources planning and control: hydrologic regional indicators application","authors":"Matheus Siqueira Piol, J. A. T. Reis, Murilo Brazzali Rodrigues Rodrigues, A. Mendonça, Fernando das Graças Braga da Silva, Alex Takeo Yasumura Lima Silva","doi":"10.5327/z2176-94781598","DOIUrl":"https://doi.org/10.5327/z2176-94781598","url":null,"abstract":"Due to limitations of hydrometeorological monitoring network related to spatial station distribution and extension of historical series, tools that aim to improve consistency and optimize available data analysis have become essential. In this context, regionalization techniques stand out, once the main focus is the delimitation of hydrologically homogeneous regions with the subsequent spatial transposition of hydrological variables of interest. Regional indicators, defined as the mean values of hydrological variables and characteristics of a homogeneous region, constitute an expeditious approach to hydrological regionalization. The main perspective of the study was to evaluate the use of regional indicators when quantifying reference flows associated with average flow, drought, or flood conditions. The study area selected was the Manhuaçu River basin, a major Doce River tributary, located in the state of Minas Gerais, Brazil. The results showed that the regional indicators allow estimates of diverse reference flows with mean errors lower than 30%, considered satisfactory for the study area. However, the conventional method of flow regionalization presented more consistent results, with mean errors usually lower than 20%, regardless of the reference flow analyzed. It was also observed that adopting historical flow series with varied extensions did not produce relevant differences when appropriating the diverse reference flows for the Manhuaçu River basin, with none exceeding 3%.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121221059","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}
Natália Feistauer Gomes, T. F. Rodrigues, Karin Luise dos Santos, Fabrício Celso, Tiina Vuorio, V. D. Jahno
{"title":"Natural weathering of composites developed from cellulose waste and post-consumer paper","authors":"Natália Feistauer Gomes, T. F. Rodrigues, Karin Luise dos Santos, Fabrício Celso, Tiina Vuorio, V. D. Jahno","doi":"10.5327/z2176-94781350","DOIUrl":"https://doi.org/10.5327/z2176-94781350","url":null,"abstract":"The development of materials that are highly degradable at the end of their life cycle helps reduce the volume of solid waste disposed of in landfills. This study aimed to produce composites from cellulose and paper residues as reinforcing fibers and from thermoplastic starch (TPS) as a matrix to analyze the effect of exposure to natural weathering in the environments of two Universities, one in Brazil (Universidade Feevale) and the other in Finland (HAMK). During the test period, the season in Brazil was summer, with high temperatures and solar radiation; in Finland, the season was winter, with negative temperatures, high air humidity, and snowfall. The materials were prepared using the tape-casting method and characterized by Dynamic Mechanical Analysis (DMA) and Thermogravimetric Analysis (TGA), having been subjected to the weather for 0, 28, and 42 days at Universidade Feevale and HAMK. At the end of each period, they were characterized by Scanning Electron Microscopy (SEM) and photographs. The results showed that the thermal stability of the composites was better compared to TPS and cellulose, and superior mechanical properties were shown in the cellulose-based composite. Thus, heterogeneous mixtures emerged from the addition of fibers to the polymer matrix. After the environmental exposure, the visualization of the micrographs and photographs indicated that the samples exposed in the two environments were brittle, shrunken, yellowed, and cracked. It was also verified that the samples exposed at Universidade Feevale suffered greater environmental degradation, and the incorporation of fibers in the composites delayed this effect at the two study sites.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115545017","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}
Iulli Pitone Cardoso, T. Siqueira, L. C. Timm, Aryane Araujo Rodrigues, A. B. Nunes
{"title":"Analysis of average annual temperatures and rainfall in southern region of the state of Rio Grande do Sul, Brazil","authors":"Iulli Pitone Cardoso, T. Siqueira, L. C. Timm, Aryane Araujo Rodrigues, A. B. Nunes","doi":"10.5327/z2176-94781204","DOIUrl":"https://doi.org/10.5327/z2176-94781204","url":null,"abstract":"This work aimed to analyze the average temperature and rainfall in the Southern and Steppe regions of the State of Rio Grande do Sul, Brazil, obtained by three global climate models regionalized by the Eta model (CANESM2, HADGEM2-ES and MIROC5) for the historical period, and two future climate scenarios (RCP 4.5 and RCP 8.5), subdivided into three periods: F1 (2006-2040), F2 (2041-2070), and F3 (2071-2099). The analysis was conducted by applying the trend tests Mann Kendall’s, Sen’s Slope and Pettitt’s to the dataset. The study noted an increase in temperature, and that the highest temperatures will occur at the end of the century. For the three climate models, temperatures will be milder in the RCP 4.5 scenario, mostly, when compared to the RCP 8.5. For those scenarios, a significant increase up to 0.95°C/year was observed in the temperature of all series, with the years of change in the mean values occurring between 2048 and 2060. The projections also suggest that there may be an increase in the average accumulated rainfall in the future periods analyzed, with exception of the result found with CANESM2 model at the RCP 8.5 scenario, which showed a significant decrease of annual rainfall in all series, ranging approximately from -3,1 to -6,6 mm/year. Those significant changes in mean of the rainfall series are expected for the late 2070's. With exception of this result, most cities and models indicate an increase in rainfall regimes, with clear variations between models and scenarios.","PeriodicalId":352759,"journal":{"name":"Revista Brasileira de Ciências Ambientais","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114735401","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}