Revista Brasileira de Ciências Ambientais (RBCIAMB) <p> </p> <h2><span style="color: red;"><span style="color: #22884b;">Journal Insights</span></span></h2> <p style="text-align: justify;">The <strong>Brazilian Journal of Environmental Sciences</strong> (RBCIAMB) is an interdisciplinary journal concerned with the ecological, environmental, territorial, social, cultural, economic, and political aspects of sustainability and environmental sciences. <a href="" target="_blank" rel="noopener">Read full aims and scope.</a></p> <p style="font-weight: 400;"><strong>First decision fast:</strong> In the pre-analysis phase, the manuscripts are reviewed by two editors, and a first decision is provided to authors approximately <strong>45</strong><strong> days</strong> after submission.</p> <p style="font-weight: 400;"><strong>Review time:</strong> In the double peer-review phase, the average time is <strong>6</strong><strong>0 days</strong> when the manuscripts are rejected. The evaluation process takes about <strong>130 days</strong> from when articles are accepted, considering all <a href="" target="_blank" rel="noopener">evaluation</a> steps. <a href="">Read full evaluation process and ethics statement.</a></p> <p style="font-weight: 400;">The four <strong>editions of 2022</strong>, composed of <strong>15 articles each</strong>, had the contributions of <strong>254 authors</strong> from <strong>77 institutions</strong> and <strong>09 Countries. </strong></p> <p style="font-weight: 400;"><span class="text-xs "><strong>Cite Score:</strong> </span>In <a href="" target="_blank" rel="noopener">Dimensions Analytics,</a> our citation score per article is <a href="" target="_blank" rel="noopener"><strong>1.8</strong></a>. Considering only the last five years, 2019 to 2023, the index is about <a href=";search_text=%22Revista%20Brasileira%20de%20Ciências%20Ambientais%22&amp;search_type=kws&amp;search_field=full_search&amp;order=date&amp;or_facet_source_title=jour.1290925&amp;or_facet_year=2023&amp;or_facet_year=2022&amp;or_facet_year=2021&amp;or_facet_year=2020&amp;or_facet_year=2019"><strong>1.3</strong>.</a></p> <p style="font-weight: 400;"><strong>Publications with citations: </strong> 56% of articles received at least one citation; <a href=";search_text=%22Revista%20Brasileira%20de%20Ci%C3%AAncias%20Ambientais%22&amp;search_type=kws&amp;search_field=full_search&amp;order=date&amp;or_facet_source_title=jour.1290925&amp;local:indicator-y1=publications-with-citations-publications" target="_blank" rel="noopener">77,27% of 2019</a> articles record at least one citation. </p> <p style="font-weight: 400;">QUALIS CAPES <strong>A3 </strong></p> <p style="font-weight: 400;">In November 2023, RBCIAMB was indexed in the <a href=""><strong><em>Web of Science</em></strong></a> database.</p> <p style="font-weight: 400;"> </p> <p style="font-weight: 400;"> </p> en-US (Revista Brasileira de Ciências Ambientais (RBCIAMB) ) (Soraia Fernandes) Thu, 01 Feb 2024 14:05:47 -0300 OJS 60 Exploring fungal potential for enhancement of environment <p>Inadequate effluent disposal has caused damage to the environment worldwide. This study aimed to perform a scientometric analysis of studies exploiting fungi applied to improve the quality of effluents. We used Web of Science, Scopus and Pubmed databases to search for publications between 1980 and 2023. The pollutants and effluent quality parameters most commonly addressed in scientific literature were identified, revealing trends and gaps in the field. A correlation analysis was performed between the variables Research and Development (R&amp;D), gross domestic product (GDP) per capita, and number of inhabitants per country to investigate whether these variables are correlated with the number of research studies in each country. In addition, a linear regression was performed to investigate the effect of the number of inhabitants per country of each country on the number of studies. A total of 11183 articles were obtained, of which 2001 were identified as related to the main topic, and then more than 30 different types of pollutants were removed, such as primarily including dyes (951), phenolic compounds (682), and heavy metals (562). Concerning effluent quality parameters, chemical oxygen demand was most frequently mentioned in the articles obtained from the literature review (620). The world’s most populous countries produce the largest number of studies related to the topic. Our results highlight the bioremediation potential importance of fungi in the scientific literature, even under inhospitable conditions for microorganisms (such as toxicity, low temperatures, and high acidity), reducing environmental damage in aquatic environments and mitigating harm to public health.</p> Ester Vieira Gonçalves, Edwin De Jesús Bedoya Roqueme , Marcos Dias Martins , Rodrigo da Costa Andrade , Samantha Salomão Caramori Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Thu, 23 May 2024 00:00:00 -0300 Biotechnological potential of growth-promoting bacteria in cotton (Gossypium hirsutum L.) crop <p>Studies involving plant growth-promoting bacteria are attracting increasing attention in the agricultural sector due to their potential to improve growth and production, and to protect plants from biotic and abiotic stresses. The present study aimed to evaluate the effects of three species of plant growth-promoting bacteria (Bacillus subtilis, Priestia megaterium, and Priestia aryabhattai) on the growth and morphological and biochemical aspects of Gossypium hirsutum L. (cotton) seedlings. The experiment was conducted in a greenhouse with four treatments (one control and three inoculations) and five replications per treatment. The seeds were inoculated by immersion in bacterial suspensions (10<sup>9</sup>CFU/mL) and then sown in pots. The plants were monitored for 60 days. During collection, the plants were measured for the fresh mass of roots and shoots, the height of the shoots, stem diameter, and number of leaves. Leaf samples were collected and used for biochemical analyses. The results obtained showed that seeds treated with P. aryabhattaihad significant improvements in the parameters of fresh mass, plant height, stem diameter, and number of leaves, and in the contents of chlorophyll (a, b, and total), nitrogen, and proteins concerning plants in the control treatment. Plants treated with P. megaterium also achieved improvements in fresh mass, stem diameter, nitrogen, and protein contents. These results indicate the potential of these plant growth-promoting bacteria for use in cotton crops and can be employed in the preparation of biostimulants and biofertilizers.</p> Mateus Henrique Freire Farias, Ana Raquel Pereira de Melo, Elis Marina de Freitas, Marcos Antônio Barbosa Lima, Fernando Augusto da Silveira, Éder Galinari Ferreira Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Fri, 03 May 2024 00:00:00 -0300 Bio-oil from coconut fibers: fractionation by preparative liquid chromatography for phenols isolation <p>The great potential of bio-products generated from agro-industrial residues from the biomass processing, as is the case with the green coconut fibers (Cocos nucifera L. var. dwarf), makes Brazil stand out in the field of transformation of these residues, mainly due to its high biodiversity and favorable climatic conditions. In this work, residual green coconut fibers were used in the production of bio-oil by pyrolysis. The bio-oil was fractionated using preparative liquid chromatography (PLC) in silica using solvents of different polarities: hexane, hexane/toluene, toluene/dichloromethane, dichloromethane/acetone, and methanol. Bio-oil and its fractions were analyzed by gas chromatograph /quadrupole mass spectrometer (GC/qMS). The concentration of each compound was carried out by multiplying the percentage area of the corresponding peak by the mass yield of the respective fraction. PLCof bio-oil increased the number of compounds identified by about 170% compared to the original bio-oil (non-fractionated), besides allowing the isolation of nonpolar compounds (mostly hydrocarbons) from polar compounds (mainly phenols, aldehydes, and ketones). Anotheradvantage of PLC was the increase in the number of hydrocarbons identified in the fractions, as opposed to the crude bio-oil analysis. Among the major compounds, phenols can be highlighted, besides furfural derivatives and hydrocarbons, which indicates the potential use of bio-oil mainly for industrial purposes.</p> Rafael de Oliveira Farrapeira, Yasmine Braga Andrade, Nathalia Mendonça Conrado, Jaderson Kleveston Schneider, Laiza Canielas Krause, Elina Bastos Caramão Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Sun, 21 Apr 2024 00:00:00 -0300 Transforming orange waste with yeasts: bioprocess prospects <p>It is mandatory to make the circular economy a reality, developing ways of transforming waste into valuable products. In this context, investigating the biotechnological potential of different residues is most welcome. This review analyzes how orange waste can be used as biorefinery feedstock to produce different bioproducts using yeasts as the major biocatalysts. In addition to the current orange market, its pectin-rich biomass is described in detail, aiming to elucidate how yeast cells can convert it into ethanol, xylitol, polyphenols, and organic acids (some of them, volatile compounds). Genetic, metabolic, and evolutionary engineering are also analyzed as biotechnological tools to improve the existing processes. Finally, this review also addresses the potential employment of fruit-dwelling yeasts in biorefining pectin-rich biomasses such as orange wastes. All the data presented herein lead to the conclusion that these residues could already be used for noble purposes.</p> Gabriel do Amaral Minussi, Angela Alves dos Santos, Thamarys Scapini, Charline Bonatto, Eduardo Dias Fenner, Aline Perin Dresch, Bruna Caline Sampaio dos Santos, João Paulo Bender, Sérgio L. Alves Júnior Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Wed, 10 Apr 2024 00:00:00 -0300 Recent advances in xylitol production in biorefineries from lignocellulosic biomass: a review study <p>The progression of sustainable practices in biorefineries is pivotal in mitigating carbon emissions and optimizing the utilization of natural resources, thereby preserving the environment. Biorefineries, which convert lignocellulosic biomass into a variety of products, distinguish themselves by efficiently transforming waste into high-value products. Xylitol stands out among biorefinery products. Derived from the conversion of xylose present in lignocellulose, it not only offers health benefits but is also considered an intermediate molecule in the production of valuable chemical products. Microbiological methods for xylitol production are increasingly acknowledged as efficient and environmentally friendly alternatives. These are some of the main factors discussed in this review, which aims to demonstrate the biotechnological route for producing xylitol through lignocellulosic materials. Several studies were observed to characterize various lignocellulosic residues, and it was noted that Eucalyptus globulusand banana leaves exhibit high levels of xylose. By analyzing the most recent researches related to xylitol production, the possibility of co-production of bioethanol using the same biotechnological route of xylitol production was identified. For instance, studies have shown that a combination of bagasse and sugarcane straw, as well as rice straw residue, are capable of producing substantial levels of xylitol and ethanol. The yields reached 30.61 g/L of xylitol and 47.97 g/L of ethanol, and 34.21 g/L of xylitol and 2.12 g/L of ethanol, respectively. These innovations not only promote sustainability but also have the potential to generate positive impacts on the global economy.</p> Jéssyka Ribeiro Santos, Magale Karine Diel Rambo, Elisandra Scapin Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Thu, 04 Apr 2024 00:00:00 -0300 Sustainable valorization of Moringa oleifera Lam. co-products and zoo waste <p>Moringa oleifera (moringa) stands out as a promising plant in several segments, being produced worldwide. However, its co-products, particularly valves and seed husks, which represent more than 70% of its fruit, remain underutilized. Therefore, this work aimed to assess the use of parts of the moringa fruit in conjunction with sediment from an artificial pond in a zoo enclosure inhabited by Tapirus terrestris (tapir), exploring the potential treatment of these wastes, using Eisenia foetidaearthworms. Five experimental conditions were analyzed, whose waste proportions were varied. The vermicomposts were not phytotoxic and differed regarding the C/N ratio; those that received parts of the moringa fruit had a higher C/N ratio. As commonly observed in stabilization processes, the contents of P, K, Ca, and electrical conductivity increased, while carbon and pH decreased during stabilization. Plant development of Catharanthus roseus was evaluated using, in addition to the vermicomposts, two commercial composts. The vermicomposts provided better development of C. roseus than the commercial composts, with T2 (65% sediment+35% fruit valves) and T3 (50% sediment+35% valves+15% seed husks) standing out as the best treatments. Vermicomposting associated with moringa co-products and zoo waste is a viable alternative via aerobic treatment, favoring waste management and the search for sustainability.</p> Fernanda Rubio, Priscila Ferri Coldebella, Marcela Boroski, Ana Tereza Bittencourt Guimarães, Caroline da Costa Silva Gonçalves Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Tue, 05 Mar 2024 00:00:00 -0300 Primacy of the real and interdisciplinarity: contradictions in theoretical production <p style="font-weight: 400;">The purpose of this text is to assert the thesis that scientific work, manifested in the production of analyses, theories, and concepts, irrespective of their disciplinary, multidisciplinary, or interdisciplinary origins, only unfolds when rooted in the primacy of the real. The complexity of scientific objects cannot be fully addressed exclusively within disciplinary confines. Discussions centered solely on theoretical, conceptual, or explanatory models, while assisting in transcending disciplinary limitations, do not propel the advancement of scientific knowledge. Contradictions in theoretical-conceptual and analytical production, explicit within disciplinary fields, arise not only from the limitations of disciplines but from how reality is conceptualized as concrete thought. Regardless of the discipline, theory and concept divorced from reality amount to mere speculation.</p> José Henrique Faria Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Wed, 10 Apr 2024 00:00:00 -0300 Influence of the integrity of the riparian zone on the Capão Comprido Stream Water Basin (DF) by simulating different spatial discretizations with the SWAT+ model <p>Riparian zones are areas bordering waterbodies that provide various environmental services. However, the inappropriate use of these spaces, with conversion for urban expansion and agricultural frontiers, has compromised their ecological integrity. The objective of this work was to verify a new perspective for analyzing the influence of the integrity of the riparian zone in river basins based on different possibilities of spatial discretization and landscape representation, of the terrestrial phase of the water balance, from the perspectives of the landscape units available in the Soil and Water Assessment Tool (SWAT+) model. The Capão Comprido Stream basin in the Federal District (DF) was defined as a case study. There were difficulties in calibrating and verifying the model using SWAT Toolbox software, with Nash-Sutcliffe Efficiency (NSE) and logarithm (log)NSE values below 0.5; percent bias (PBIAS) above ±15, and coefficient of determination (R<sup>2</sup>) below 0.6. These results, although better than those of the initial simulation, are still unsatisfactory acording to the metrics and values adopted as reference. Despite that, based on the determination of landscape units available in SWAT+, hydrological modeling of river basins has the potential to improve the representation of river basins by differentiating the characteristics of the higher parts of the relief (uplands) from the lower riparian zone (floodplains). Riparian zones proved to be relevant for the conservation of water resources. The simulations confirmed that the increase in these areas contributed to the reduction in surface runoff and sediment load in the river basin. However, it contributed to an increase in lateral flow, percolation, return flow, and deep aquifer recharge.</p> Moíra Paranaguá Nogueira, Priscilla Regina da Silva, Ricardo Tezini Minoti Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Fri, 10 May 2024 00:00:00 -0300 Modeling future carbon stock in melon cultivation agroecosystems under different climate scenarios <p>Intensive melon cultivation is based on conventional monoculture models that can inefficiently use natural resources, which, combined with inadequate management, contribute to climate change. The main objective of this study was to model the future carbon stock in melon cultivation agroecosystems under different climate scenarios. The study was conducted at the Bebedouro Experimental Field of Embrapa Semi-arid, Petrolina/PE, Brazil, in an area cultivated with yellow melon cv. Gladial, and eight cultivation cycles were considered. The experimental design was composed of two types of soil management (with and without tillage), two treatments using green manures consisting of 14 species with different proportions of legumes, grasses and oilseeds, and spontaneous vegetation, containing four replications divided into randomized blocks. After 70 days of development, the plants were cut and placed in the soil. Temperature and precipitation data were acquired from the BCC-CSM, MIROC5, CESM1-BGC, IPSL-CM5B-LR, and HadGEM2-AO climate models, following the RCP 4.5 and 8.5 climate scenarios. The carbon (C) stock was estimated until the year 2071 using the RothC model. The treatment with a predominance of legumes and no rotation increased the C stock in the soil, regardless of the climate scenario. The soil tillage did not favor C accumulation, meaning that none of the treatments reached the same stock as the Caatinga. The MIROC5 model in the RCP 4.5 scenario favored greater C accumulation in the soil, while the lowest C stocks occurred in the CESM1-BGC and IPSL-CM5B-LR models under the RCP 8.5 scenario.</p> Vanêssa Coelho da Silva, Mônica da Silva Santana, Angelúcia Gonçalves Parente, Rubens Sonsol Gondim, Cleiton da Silva Silveira, Alessandra Monteiro Salviano, Tarcísio Rocha Vicente de Deus, Gustavo Souza Valladares, Vanderlise Giongo Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Wed, 24 Apr 2024 00:00:00 -0300 Mortality from breast cancer and use of pesticides in the western mesoregion of Santa Catarina – Brazil <p>Chronic exposure to endocrine-disrupting pesticides may be related to breast cancer emergence in agricultural regions. This study aimed to investigate whether the consumption of pesticides is correlated with breast cancer mortality rates in the female population of western Santa Catarina. A retrospective ecological study was carried out. The number of deaths from breast cancer and agricultural production per planted area in the western mesoregion were obtained from public databases. The average of the standardized mortality coefficients was calculated in the periods: 2005 to 2009, 2010 to 2014, and 2015 to 2019. Raw data on pesticide consumption were grouped from 2000 to 2004, considering that the biological effects of chronic exposure occur late. Thus, previous exposure was considered in this study, in which consumption of pesticides occurred five, ten, and 15 years before death. For statistical analysis, thematic cartography and the Quantum GIS technique were used. The overlay method was applied to perform the spatial correlation. Considering 15 years of exposure, the sum of municipalities with an above-average rate of mortality from breast cancer occurred in 93 of the 118 municipalities in western Santa Catarina, which have an above-average history of pesticide consumption (R2=0.69). In 79% of cases, mortality occurred at a frequency above the average in municipalities whose pesticide consumption also exceeded the regional average. A proportional correlation between breast cancer mortality rates and the use of endocrine-disrupting pesticides was found.</p> Maria Isabel Gonçalves da Silva, Marcelo Moreno, Clodoaldo Antônio De Sá, Carlos Alberto Rizzi, Eduardo Augusto Werneck Ribeiro, Marcia Orth Ripke, Vanessa da Silva Corralo Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Thu, 25 Apr 2024 00:00:00 -0300 A bibliometric review of ecosystem services and coastal zones: diagnoses and trends <p>Bibliometric analysis is an instrument used to quantify scientific production on a given topic. This type of analysis can be applied to show trends in an area of study. This review aims to examine how scientific production on ecosystem services, coastal zones, and ports is being carried out, identifying trends and gaps. The guiding questions of the work focused on the growth of production, the ports as focal points, the ecosystems studied, the methodologies used, and which ecosystem services were the focus of discussion. Searches on catalog platforms were made to determine how many articles would be considered for analysis, and after filtering, 91 articles were examined. The main results show that the years 2014 and 2018 were the peak of publications; the United States of America is the country that presented most publications with 19 papers; ports appear in just over 20% of the analyzed works, and beaches and marine environments, such as the continental shelf and slopes, are focus of discussion. More than 50 ecosystem services were found in the analysis, with “food” and “recreational values” being the most studied services. With the decade of the oceans, there is a tendency for the growth of scientific production, maintaining the relevance of the themes, particularly when studied together.</p> Nivaldo Lemos de Souza, Ranyere Silva Nóbrega, Maria Fernanda Abrantes Torres, Antonio Vicente Ferreira Junior Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Tue, 12 Mar 2024 00:00:00 -0300 Microcrystalline cellulose: an alternative to increase the resistance of kraft packaging with recycled fiber <p>The consumption of paper packaging is increasing. On the contrary, the planted areas of Pinus spp. are showing a trend tendency of imbalance between supply and demand. Therefore, many companies are prioritizing the use of recycled fiber (RF). However, its inclusion can influence the quality of the product. This study aimed to evaluate whether the combination of RF with microscale cellulose will enable the production of resistant paper. The first step involved producing bench-scale samples of Kraft paper (with different percentages of virgin and RF) and characterized it physically (grammage, moisture, Gurley porosity, Z-traction, SCT, and Mullen). The second stage involved replicating the first stage with the inclusion of microcrystalline cellulose (MCC) and the elimination of Pinus spp. (LF). All formulations were approved for the physical characterization tests, except for the porosity analysis and grammage for F5. In the first test (MCC=0%), there was a reduction in tensile, compression, and burst index of 13.2, 7.3, and 19.5%, respectively, showing that the higher the percentage of RF, the lower the paper’s strength. In the second test for Formulation 3 (MCC=6%), there was an increase in the tensile, compression, and burst index of 9.5, 2.6, and 2.7%, respectively, when compared with Formulation 2 (LF=MCC=0%). This study demonstrates that the addition of up to 6% MCC strengthens the RFs and decreases the dependence on Pinus spp., making it a promising alternative for the production of sustainable and resistant packaging.</p> Yankha Myllena da Silva Van Tienen, Sabrina Ávila Rodrigues Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Sat, 09 Mar 2024 00:00:00 -0300 Life cycle analysis of anaerobic digestion processes of poultry litter <p>This article presents results of life-cycle assessment of anaerobic digestion processes of poultry litter (PL) preceded or not by thermal pretreatment (autohydrolysis). For this, the environmental impact categories, greenhouse gas (GHG) emissions, eutrophication, and soil acidification were evaluated using the ReCiPe Midpoint (H) method. Based on primary data provided by a partner company, life-cycle inventories were constructed for three forms of poultry waste management: i. disposal of in natura PL into the soil, which is the commonly used management technique; ii. anaerobic digestion of in natura PL; and iii. thermal pre-treatment by autohydrolysis of PL before its anaerobic digestion. It is concluded that anaerobic digestion of PL reduces GHG emissions compared to the “business as usual” scenario of soil disposal. The use of digestate (liquid fraction generated by PL anaerobic digestion) as soil fertilizer would result in avoided GHG emissions of 34%, while thermal pre-treatment by autohydrolysis of PL prior to its anaerobic digestion would result in a slightly lower reduction (27%) in GHG. Anaerobic digestion of in natura PL would also reduce the eutrophication potential by 98.2% (kg eq PO<sub>4</sub><sup>-3</sup>/t litter) and the acidification potential by 98.4% (kg eq SO<sub>2</sub>/t litter) compared to its soil disposal. These results show that anaerobic digestion is a more sustainable way to manage PL than its environmental discharge.</p> Gabriel Neme Barbosa Veisac Carneiro, Sérgio Francisco de Aquino, Oscar Fernando Herrera Adarme Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Fri, 10 May 2024 00:00:00 -0300 Sustainable reduction of sulfate contained in gypsum waste: perspectives and applications for agroforestry waste and sanitary sewage <p>This review article explores sustainable biotechnological strategies for converting sulfate compounds and lignocellulosic waste, focusing on using sulfate-reducing bacteria (SRB) and the valorization of agroforestry residues and sanitary sewage. SRB show potential in effluent treatment, mine drainage, and the removal of sulfate and heavy metals from wastewater, with their metabolic activity being influenced by factors such as pH, temperature, and chemical oxygen demand/sulfate (COD/SO4=) ratio. In the context of a sustainable bioeconomy, the challenge of converting lignocellulosic waste into value-added products is addressed through physical pretreatment techniques such as milling, extrusion, microwave irradiation, and ultrasound, which are efficient in valorizing waste from urban tree pruning. The article highlights the importance of bioreactors in transforming raw materials into desirable biochemical products, discussing different types of bioreactors, such as batch, continuous stirred tank, airlift, fluidized bed, upflow anaerobic sludge blanket (UASB), and bubble column, and their specific advantages and disadvantages. Sustainable sulfate reduction is the central focus, integrating the application of SRB and the conversion of lignocellulosic waste in a way that complements the objectives of the work and promotes a more cohesive flow in the summary. Thus, the interrelationship between effluent treatment strategies and waste valorization is emphasized from an environmental sustainability perspective, highlighting the relevance of this study in the broader context of a sustainable bioeconomy.</p> Gilka Maria da Silva Paiva, Gleice Paula de Araujo, Ivan Xavier Lins, Davi de Lima Cavalcanti, Leonardo Bandeira dos Santos, Mohand Benachour, Valdemir Alexandre dos Santos Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Tue, 05 Mar 2024 00:00:00 -0300 Improvements in the regulation and implementation of extended producer responsibility systems: analysis from the e-waste case study in the State of São Paulo from 2012 to 2021 <p>The strategy adopted for the implementation of the extended producer responsibility (EPR) in the State of São Paulo was conceived in three phases, the first and second of which have already been completed, while the third is in progress. The aim of this paper is to evaluate the response of EPR systems to the advancement of regulation, based on the case study of waste electrical and electronic equipment in the State of São Paulo. An evaluation of the behavior of these systems was carried out from 2012 to 2021, between the first and second phase of EPR implementation, considering the following variables: established goals, participating companies and results achieved, with two approaches: a) comparative analysis between the two engagement agreements established with entities in the electronics sector, signed, respectively, in the first and second phase; b) analysis of the aggregate results of the systems whose reverse logistics plans were presented to the state environmental agency in compliance with the regulation, between 2018 and 2021. Advances were noted from the first to the second phase, regarding the variety of waste covered, quantity and diversity of actors in the production cycle involved, significance of goals, geographic scope of waste collection points and quantities collected. From 2018 to 2021, the total number of collection points increased 37.4 times, and the amount collected almost quadrupled. The decisive factor for this advance was the publication of an innovative regulation between the two phases, binding the compliance with the EPR to environmental licensing at the state level.</p> Raissa Silva de Carvalho Pereira, Flávio de Miranda Ribeiro, Wanda Maria Risso Günther Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Tue, 05 Mar 2024 00:00:00 -0300 Challenges for the implementation of the jurisdictional REDD+ in the Brazilian state of Amazonas <p>The forestry sectors of developing countries can contribute to the fight against climate change through financial negotiations, which include the REDD+ mechanism. The jurisdictional REDD+ (J-REDD+) approach has emerged as an option for large countries, such as Brazil, which have profound regional idiosyncrasies that can influence the dynamics of the implementation of a REDD+ system. The study analyzes the implementation of a J-REDD+ system in the Brazilian state of Amazonas, between 2005 and 2022, based on the analysis of official documents and academic studies. The data were used to compile a SWOT matrix, which was employed to identify the strengths, weaknesses, opportunities, and threats involved in implementing the J-REDD+ in the state. This analysis revealed that the principal forces include public policy, the combat of deforestation, governance, monitoring, and the targets for reducing deforestation rates. The primary weaknesses include the lack of a state REDD+ plan, recent increases in deforestation rates, strategic challenges, the limited representation of traditional and indigenous peoples on advisory councils, and the lack of adequate transparency mechanisms. External opportunities lie in the potential for increasing the funding for projects, although the external threats include a lack of continuous funding, changes in the composition of working bodies, and the discontinuous nature of local government programs. These findings indicate that implementation of J-REDD+ at both state levels will be crucial to ensure that this approach provides an effective mechanism for the mitigation of climate change, as well as achieving present and future goals for conservation and sustainable development.</p> Abdulai Ismail Seca, Henrique dos Santos Pereira, Fausto Miziara Copyright (c) 2024 Brazilian Journal of Environmental Sciences (RBCIAMB) Thu, 01 Feb 2024 00:00:00 -0300 Effects of changes in use and soil cover on real evapotranspiration from the creation of a remote sensing product in the Xingu basin <p>Several studies have shown that changes in land cover within a given watershed significantly affect the hydrological cycle and its variables. In the Xingu basin, many areas had their vegetation replaced by agricultural crops and pastures, while deforestation has been particularly prevalent in the region known as the Arch of Deforestation. Using remote sensing techniques enable the estimation of biophysical variable ETr for extensive areas, as exemplified in the study basin. Evapotranspiration data used in this work were obtained by creating a product that returns the combined median of the MOD16A2, PML_V2, Terra Climate, GLEAM_v3.3a, FLUXCOM, SSEBop, FLDAS, and ERA5-Land models, with subsequent application of the data provided by Collection 6 of the MapBiomas network, allowing the integration of land use and land cover information with real evapotranspiration estimates for the transition ranges: Forest to Pasture; Forest to Agricultural Land; Cerrado to Pasture; Cerrado to Agricultural Land. The interval defined for the study corresponds to the years 1985 to 2020, according to the historical series available on MapBiomas. After applying programming languages to filter the data, the results underwent statistical analysis to elucidate the effects of soil changes on evapotranspiration. Over the total data period (1985-2020), there was a decrease in forest areas (-16.23%), with conversion to pasture areas, in the order of +12.51%, and agricultural areas, reaching +5.5%. In the same timeframe, evapotranspiration in conversion bands underwent minimal changes, notably from 2009 to 2020, where a decreasing trend was reported of 0.095 mm/month for the “forest to pasture” substitution, and 0.090 mm/month in “Cerrado for pasture".</p> Sarah Christina Ribeiro Antunes, Celso Bandeira de Melo Ribeiro , Ricardo Neves de Souza Lima , Augusto Getirana Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Tue, 05 Mar 2024 00:00:00 -0300 Nutritional quality of Brazil nuts from different trees and under different storage conditions <p>The Amazon nut is a naturally organic food, considered a functional food for promoting good nutrition and health of the body. Its regular consumption has already been associated with reducing several diseases due to the high antioxidant and anti-inflammatory activities of some phytochemicals, mainly Selenium (Se). The objectives of this study were: 1) to evaluate whether Brazil nut trees that present higher fruit production also have higher Se content, 2) to check for alterations in Brazil nut (2021 harvest) seeds after one year of storage under different controlled conditions; 3) to check for alterations in the proximate composition of seeds (2022 harvest) after pre-drying and storage in the field. The average Se content was 143 mg kg<sup>-1</sup>, varying from 33 to 544 mg kg-<sup>1</sup>, with higher values in Brazil nuts collected from trees with lower fruit production. Seeds stored in their fruit for one year had higher moisture content (21%) and water activity (0.91) than those in the climate-controlled cold room and laboratory room, in addition to more carbohydrates and less lipids. This proved the efficiency of seed storage in fruit to maintain germination viability. In general, no significant changes were found in the proximate and nutritional composition of Brazil nuts taken to storehouse of pre-drying and the local buyer’s warehouse, proving that these conditions enable the quality maintenance of fresh Brazil nuts. These results can support commercialization, improvement, and valorization actions in the Brazil nut production chain that favor its quality as a functional and nutraceutical food.</p> Ediglei Gomes, Anderson Vasconcelos Firmino, Ana Claudia Lira Guedes, Aldine Pereira Baia, Daniele Alencar Gonçalves, Suellen Patrícia Oliveira Maciel, Marcelino Carneiro Guedes Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Sat, 09 Mar 2024 00:00:00 -0300 Plant growth-promoting bacteria in sorghum development in coppercontaminated soil <p>Copper (Cu) is a metal that can become toxic to sorghum when present in high concentrations in the soil. The use of plant growth-promoting rhizobacteria can be an alternative for the development of sorghum [Sorghum bicolor (L.) Moench] in soil contaminated with copper. The objective of this study was to determine the effect of Azospirillum brasilense inoculation on the development and copper levels of sorghum cultivated in soil contaminated with Cu, enabling the reuse of these areas. The experimental design was randomized blocks in a factorial arrangement (9 × 2), with nine doses of copper [(0: natural content of the soil), 30, 60, 90, 120, 150, 180, 240, and 300 mg of copper kg-1 of soil] with and without A. brasilense inoculation, with six replicates. In the treatment without inoculation, a dose of 200 kg-1ha was applied. Plant height (PH), stem diameter, dry mass of the air part (DMAP), volume, length, and root dry mass (RDM), relative index of chlorophyll a and b, and copper contents in DMAP and RDM were evaluated. The inoculation with A. brasilense allows a higher index of chlorophyll a and b and the development of the aerial part of the sorghum, reducing copper content in the aerial part, enabling the reuse of soil containing 52.5% clay, contaminated with up to 300 mg of copper kg-1 of soil. Inoculation with A. brasilense increases the specific surface area (SSA) of sorghum roots compared with non-inoculated plants grown only with nitrogen fertilization in soil contaminated with copper.</p> Juliano Cesar da Silva, Rodrigo Ferreira da Silva, Victorino Menegat dos Santos, Andréa da Rocha Giovenardi, Danni Maisa da Silva, Eduardo Canepelle, Ana Paula da Silva Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Sat, 09 Mar 2024 00:00:00 -0300 Fire effect on bamboo-dominated forests in Southwestern Amazon: impacts on tree diversity and forest structure <p>Severe droughts increase the forest flammability, especially if fires are recurrent. Considering that fires tend to alter the forest structure and reduce biological diversity, we analyzed the fire effect on the tree plant community and forest structure over a 10-year post-fire period. The study was carried out in two tropical forest fragments located in the eastern Acre State in southwestern Brazilian Amazon. In each fragment, we established three plots of 250 × 10 m<sup>2</sup> in an unburned forest and three in a burned forest. In these plots, we collected all tree individuals with DBH≥10 following the RAINFOR protocol, with censuses made in 2011, 2014, 2016, 2017, 2019, 2020 and 2021. The fire significantly reduced the abundance, basal area, and aboveground biomass of tree species, and altered the species composition along the post-fire temporal gradient. The absence of differences in the species richness and species diversity between unburned and burned forests is probably related to the life cycle of bamboo. The results suggest that, 10 years after the fire, the structure and phytosociology of the forest have not yet fully recovered.</p> Izaias Brasil da Silva, Patrícia Nakayama Miranda, Liana Oighenstein Anderson, Camila Valéria Silva de Jesus, Luiz Eduardo Oliveira Cruz de Aragão, Carlos Alberto Campos, Cleber Ibraim Salimon, Anselmo Fortunato Ruiz Rodriguez, Marcos Silveira Copyright (c) 2024 Revista Brasileira de Ciências Ambientais (RBCIAMB) Sun, 04 Feb 2024 00:00:00 -0300