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Registros recuperados: 33
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A review of potential impacts of submarine power cables on the marine environment: Knowledge gaps, recommendations and future directions ArchiMer
Taormina, Bastien; Bald, Juan; Want, Andrew; Thouzeau, Gerard; Lejart, Morgane; Desroy, Nicolas; Carlier, Antoine.
Submarine power cables (SPC) have been in use since the mid-19th century, but environmental concerns about them are much more recent. With the development of marine renewable energy technologies, it is vital to understand their potential impacts. The commissioning of SPC may temporarily or permanently impact the marine environment through habitat damage or loss, noise, chemical pollution, heat and electromagnetic field emissions, risk of entanglement, introduction of artificial substrates, and the creation of reserve effects. While growing numbers of scientific publications focus on impacts of the marine energy harnessing devices, data on impacts of associated power connections such as SPC are scarce and knowledge gaps persist. The present study (1)...
Tipo: Text Palavras-chave: Submarine power cables; Marine renewable energy; Environmental impacts; Ecosystem functioning; Benthic habitats.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00454/56542/58330.pdf
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Agricultural management practices assessment to improve the environmental and social impacts of sugarcane production system in São Paulo State. Repositório Alice
TORQUATO, S. A.; JESUS, K. R. E. de; ZORZO, C. R. B..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Sustainability; Environmental impacts; Impacto ambiental; Cana de açúcar; Sugarcane; Social impact.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1010175
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An evaluation of the economic viability of environmental offsets in the saltworks industry Ciência Rural
Fernandes,Rogério Taygra Vasconcelos; Pinto,Aruza Rayana Morais; Fernandes,Raimunda Thyciana Vasconcelos; Oliveira,Jônnata Fernandes de; Novaes,José Luís Costa.
ABSTRACT: The extraction of sea salt depends on the occupation of large areas at the estuary banks, many of them inserted in Permanent Preservation Areas (PPAs). Thus, the objective was to evaluate the economic viability of Environmental Offsets (EO) as an alternative to the unoccupied PPAs in the saltworks. In order to do so, 27 solar saltworks installed in the region of the Brazilian White Coast were evaluated for the occupation of PPAs - measured using images from satellite, georeferenced, vectored with corresponding PPA bands generated - and estimated to EO (Impact Degree x Sum of the investments necessary to implement the project) and Economic Impact (Net Present Value, with long-term interest rate of 7%) of vacating PPAs. It was considered that EO...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Economic impact; Environmental impacts; Ecosystem services; Mangroves; Permanent preservation areas.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500401
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Cassava wastewater as organic fertilizer in ‘Marandu’ grass pasture AGRIAMBI
Bezerra,Márcio G. S.; Silva,Gualter G. C. da; Difante,Gelson dos S.; Emerenciano Neto,João V.; Oliveira,Ermelinda M. M.; Oliveira,Luiz E. C. de.
ABSTRACT This study aimed to evaluate the use of wastewater from the cassava processing as organic fertilizer on pastures of Brachiaria brizantha cv. ‘Marandu’. The treatments were wastewater doses (0, 15, 30, 60 and 120 m3 ha-1), in a randomized block design with four replicates. The structural characteristics and morphological composition of the pastures were evaluated, from July 2013 to January 2014. The addition of wastewater promoted a positive linear increase in the three cuts for the canopy height, light interception and leaf area index. The maximum dry matter (DM) production was obtained with 120 m3 ha-1 of wastewater (2796 kg ha-1 of DM in the second cut). The mass of senescent material in the second and third cuts fitted to positive linear...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; Manihot esculenta; Manipueira; Environmental impacts.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000600404
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Changes in diet of a neotropical cichlid in response to river damming Biological Sciences
Jorge, Monica Bueno; Vilela, Maria José Alencar; Suarez, Yzel Rondon; Lima Junior, Sidnei Eduardo.
Changes in diet of Laetacara araguaiae Ottoni and Costa, 2009 were evaluated in the Sucuriú River (Upper Paraná basin, Brazil) in an area with a small hydroelectric power plant, both before and after the formation of the reservoir, in order to answer: Did the construction of the reservoir affected the diet of this species? The results showed greater change of diet composition in the upstream section of the reservoir. It was observed that before the formation of the reservoir and the first year after, the individuals from upstream section formed a group characterized by an insectivorous diet. With the dam construction and habitat change we observed that aquatic plant material, sediment, and algae predominated in the diet. These results show the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.00.00.00-6 aquatic ecology; Environmental impacts; Laetacara araguaiae; Reservoir; Upper Paraná River; Brazil. Ecologia.
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43880
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Combining ecosystem indicators and life cycle assessment for environmental assessment of demersal trawling in Tunisia ArchiMer
Abdou, Khaled; Le Loc'H, Francois; Gascuel, Didier; Romdhane, Mohamed Salah; Aubin, Joel; Ben Rais Lasram, Frida.
Purpose The present study assesses environmental performance of seafood production by demersal trawling in Tunisia (Gulf of Gabes) in order to analyze the contribution of each production stage to environmental impacts and to understand drivers of the impacts using life cycle assessment (LCA). Then a set of ecosystem quality indicators were determined using an ecosystem modeling tool, Ecopath with Ecosim (EwE), and were combined with LCA to increase the relevance of both tools' assessments when applied to fisheries. Methods The approach consisted of conducting LCA and calculating ecosystem indicators to provide a complete assessment of trawling's environmental impacts and the ecosystem characteristics associated with seafood production. The functional unit...
Tipo: Text Palavras-chave: Life cycle assessment; Fisheries; Ecosystem modeling; Ecopath with Ecosim; Ecospace; Demersal trawling; Environmental impacts; Gulf of Gabes.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00609/72148/70895.pdf
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Community Watershed Management in Semi-Arid India: The State of Collective Action and its Effects on Natural Resources and Rural Livelihood AgEcon
Shiferaw, Bekele A.; Kebede, Tewodros A.; Reddy, V. Ratna.
Spatial and temporal attributes of watersheds and the associated market failures that accelerate degradation of agricultural and environmental resources require innovative institutional arrangements for coordinating use and management of resources. Effective collective action (CA) allows smallholder farmers to jointly invest in management practices that provide collective benefits in terms of economic and sustainability gains. The Government of India takes integrated watershed management (IWM) as a key strategy for improving productivity and livelihoods in the rain-fed and drought-prone regions. This study investigates the institutional and policy issues that limit effective participation of people in community watershed programs and identifies key...
Tipo: Conference Paper or Presentation Palavras-chave: Collective action; Institutions; Property rights; Watershed management; Poverty; Environmental impacts; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/44358
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Consequências da monocultura de braquiárias e da invasão de cambarazais e algodoais sobre a ictiofauna de alagados no Pantanal. Infoteca-e
ROSA, F. R. da.; RESENDE, E. K. de.
As áreas inundáveis do Pantanal são importantes ambientes de alimentação, crescimento e desova para a ictiofauna. A vegetação das áreas inundáveis passa por fortes mudanças, em parte causadas por oscilações naturais do nível hidrológico, em parte ocasionada pelo manejo humano da paisagem. São exemplos dessas mudanças, naturais ou antrópicas, a substituição de campos nativos pela expansão de algodoais (Ipomoea carnea), cambarazais (Vochysia divergens) e pela introdução das forrageiras Brachiaria spp. Avaliamos as consequências dessas substituições sobre a ictiofauna em áreas alagáveis do Pantanal Norte. Comparamos riqueza de espécies, biomassa e abundância das ictiocenoses coletadas em 30 parcelas com 25 m2. Registramos 101 espécies de peixes de variados...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Áreas inundáveis; Impactos ambientais; Peixes; Environmental impacts; Fishes; Flooded areas.
Ano: 2011 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/920837
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Contributions of U.S. Crop Subsidies to Biofuel and Related Markets AgEcon
Devadoss, Stephen; Bayham, Jude.
The U.S. crop subsidies provide incentives for farmers to expand feedstock production, which benefits the biofuel producers by lowering input costs. This study develops a general equilibrium model to analyze the effects of a reduction in the U.S. crop subsidy on biofuel industries and social welfare. The impacts of feedstock policies on the biofuel market are marginal. In contrast, the biofuel mandate has a larger impact and counteracts the effects of the crop subsidy reduction. The mandate increases the demand for feedstock and causes not only grain ethanol, but also cellulosic ethanol production to rise. The mandate exacerbates the distortion, and government spending increases significantly, leading to greater welfare loss.
Tipo: Journal Article Palavras-chave: Biofuel; Environmental impacts; Farm supports; Welfare analysis; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Financial Economics; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy; Q18; Q27.
Ano: 2010 URL: http://purl.umn.edu/100525
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Ecologia, manejo e utilização da Virola surinamensis Rol.(Warb.). Infoteca-e
GALUPPO, S. C.; CARVALHO, J. O. P. de..
2001
Tipo: Documentos (INFOTECA-E) Palavras-chave: Essencia florestal; Ucuuba; Manejo florestal; Árvore de uso múltiplo; Exploração florestal; Impacto ambiental; Ecologia; Virola surinamensis; Pará; Amazônia; Brasil; Forest trees; Forest management; Multipurpose trees; Environmental impacts; Ecology.
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/382633
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Economic and Environmental Impacts of Improving Growth Rate and Feed Efficiency in Fish Farming Depend on Nitrogen and Density Limitation ArchiMer
Besson, Mathieu; Komen, H; Vandeputte, Marc; Aubin, Joel; De Boer, I J M; Van Arendonk, J A M.
The aim of fish breeding is to increase profit by producing faster growing fish with lower feed intake. However, little is known about the economic and environmental impacts of selective breeding programs for fish. We modelled a fish farm producing African catfish in a Recirculating Aquaculture System (RAS) to calculate economic values of growth rate and feed efficiency with production limited by fish density in rearing tanks and fish nitrogen emission. We also calculated “environmental values” with Life Cycle Assessment. The economic and environmental values of growth rate and feed efficiency depended on the limiting factor. When nitrogen was the limiting factor, economic and environmental values of growth rate were zero. But, on the other hand, feed...
Tipo: Text Palavras-chave: Economic values; Environmental impacts; Fish farming.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00205/31641/30046.pdf
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Environmental and Social Impacts of Oil Palm Plantations and their Implications for Biofuel Production in Indonesia Ecology and Society
Obidzinski, Krystof ; Center for International Forestry Research (CIFOR); kobidzinski@cgiar.org; Andriani, Rubeta ; Center for International Forestry Research (CIFOR) ; r.andriani@cgiar.org; Komarudin, Heru; Center for International Forestry Research (CIFOR) ; h.komarudin@cgiar.org; Andrianto, Agus ; Center for International Forestry Research (CIFOR) ; a.andrianto@cgiar.org.
This paper reviews the development of oil palm with linkages to biofuel in Indonesia and analyzes the associated environmental and socioeconomic impacts. We selected three plantation study sites in West Papua (Manokwari), West Kalimantan (Kubu Raya), and Papua (Boven Digoel) to assess the impacts. Research findings indicate that the development of oil palm in all three sites has caused deforestation, resulting in significant secondary external impacts such as water pollution, soil erosion, and air pollution. In terms of social impacts, many stakeholder groups, i.e., employees, out-growers, and investing households, report significant gains. However, we found these benefits were not evenly distributed. Other stakeholders, particularly traditional...
Tipo: Peer-Reviewed Reports Palavras-chave: Biofuels; Environmental impacts; Oil palm; Socioeconomic benefits.
Ano: 2012
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Environmental Impacts of Emerging Biomass Feedstock Markets: Energy, Agriculture, and the Farmer AgEcon
Dodder, Rebecca S.; Amani, Elobeid; Johnson, Timothy L.; Kaplan, P. Ozge; Kurkalova, Lyubov A.; Secchi, Silvia; Tokgoz, Simla.
The tighter linkages between energy and crop markets due to recent climate and energy legislation in the US have large potential environmental impacts beyond carbon sequestration and climate mitigation. These range from effects on water quality and quantity, soil erosion, habitat and biodiversity preservation. These impacts are very location and management-decision specific, as they are the product of atomistic decisions and depend on soil and landscape specific variables. In order to fully understand the effects of biomass markets, the new and stronger linkages and feedback effects between national- and global-scale energy and commodity markets must be properly understood and identified using an integrated perspective. We discuss the various interactions...
Tipo: Working Paper Palavras-chave: Energy and Commodity markets linkages; Integrated energy system assessment; Environmental impacts; Biofuels.; Agricultural and Food Policy; Environmental Economics and Policy; Farm Management; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/118453
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Evaluating water resource maintenance for lakes of the middle Doce river - doi: 10.4025/actascibiolsci.v34i3.8703 Biological Sciences
Morais, Maíra Moreira; Universidade Federal de Minas Gerais; Miranda, Roberta Ferreira; Universidade Federal de Minas Gerais; Barroso-Silva, Kariny; Centro Universitário do Leste de Minas Gerais – UnilesteMG; Latini, Anderson Oliveira; Universidade Federal de São João Del Rei.
The importance of water resources to mankind and the threat level these resources have withstood due to regional and worldwide human intervention are undeniable. In the middle stretch of the Doce river basin, there are close to 170 natural lakes, located between an environmental conservation area and monoculture eucalyptus plantations, with social, economic and biological importance. Our objective was to evaluate whether the water surface area in these lakes has remained constant in the last few decades, and make inferences on the result. To that end, we measured the water surface area of 16 lakes, from satellite images obtained between May and August in the years 1977, 1979, 1981, 2000 and 2005. Total water surface area was compared considering these...
Palavras-chave: Ecologia de Ecossistemas lakes; Water surface area; Environmental impacts; Remote sensing Ecologia.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8703
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Evaluation of Environmental Effects in Producing Three Main Crops (Corn, Wheat and Soybean) Using Life Cycle Assessment CIGR Journal
Ghasempour, Atena; ahmadi, ebrahim.
Today, environmental pollution and greenhouse gases emissions are one of the human society challenges which is attracted many countries, scientists and researchers attention. To control and reduce the pollution needed to track the environmental impact during the production of the desired product. Since the world's population is growing, the demand for food has increased. Therefore, the agricultural industry required to appropriate policy management to reduce the environmental impacts for producing the healthier products. LCA approach specifies the environmental impact during the production of the interest product. In addition, three crops of corn, wheat and soybean were announced as ten of world's first listwith universal value. Therefore, producing these...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental impacts; SimaPro; Greenhouse gases; Life cycle assessment; Acidification; Photochemical oxidation..
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4687
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Ferromanganese nodule fauna in the Tropical North Pacific Ocean: Species richness, faunal cover and spatial distribution ArchiMer
Veillette, J; Sarrazin, Jozee; Gooday, A; Galeron, Joelle; Caprais, Jean-claude; Vangriesheim, Annick; Etoubleau, Joel; Christian, J; Juniper, S.
The poorly known ferromanganese nodule fauna is a widespread hard substratum community in the deep sea that will be considerably impacted by large-scale nodule mining operations. The objective of this study was to analyze the spatial distribution of the fauna attached to nodules in the Clarion-Clipperton Fracture Zone at two scales; a regional scale that includes the east (14 degrees N, 130 degrees W) and the west (9 degrees N, 150 degrees W) zones and a local scale in which different geological facies (A, B, C and west) are recognizable. The fauna associated with 235 nodules was quantitatively described: 104 nodules from the east zone (15 of facies A, 50 of facies B and 39 of facies C) and 131 nodules from the west zone. Percent cover was used to quantify...
Tipo: Text Palavras-chave: Environmental impacts; Environmental factors; Geographical distribution; Agglutinated foraminifera; Fixed fauna; Ferromanganese nodules.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3537.pdf
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Hydrochemistry of alluvial aquifer in the Cobra River sub-basin AGRIAMBI
Lima,Alexandre de O.; Dias,Nildo da S.; Lima Filho,Francisco P.; Ferreira Neto,Miguel; Rego,Priscila R. do A.; Souza,Anderson de M..
ABSTRACT The regional characteristics of waters from alluvial aquifers are different, since they depend on geology and climate. Also, there may be local variation in the quality of the available water when the water source is superficial (rivers and lakes) or is underground due to geology. In order to investigate the groundwater quality of the alluvial aquifer in the Sub-Basin of the Cobra River (RN) for construction of underground dams, five wells, four in the main river and one in the tributary, were monitored in dry and rainy seasons, during two hydrological years. Fifteen water samples from ‘Amazonas’ wells were collected for hydrochemical assessment. Multivariate analysis were performed to evaluate the origin of aquifer recharge and water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water quality; Salinization; Environmental impacts.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001100785
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Ichthyofauna from tributaries of Urubu and Amazonas rivers, Amazonas State, Brazil Biota Neotropica
Pereira,Rayane da Silva; Silva,Rayanna Graziella Amaral da; Morales,Bruno Ferezim; Souza,Sidney dos Santos; Hinnah,Rafael; Takahashi,Erico Luis Hoshiba; Ota,Rafaela Priscila.
Abstract: The Amazonas River basin comprises the world’s highest fish species diversity. Anthropogenic interferences in aquatic environments represent a pressure over the maintenance of ecological stability and biodiversity. We inventoried the ichthyofauna of 13 disturbed/modified tributaries of Urubu and Amazonas rivers in the region of the middle Amazon River, between June 2018 and March 2019. A total of 164 species were captured, represented by 11 orders, 37 families and 96 genera. Characiformes was the richest order, followed by Cichliformes and Siluriformes. The most representative families in number of species were Cichlidae, Serrasalmidae, and Characidae. Hemigrammus levis was the most abundant species, and Acarichthys heckelii the most common,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon fish; Environmental impacts; Ichthyofauna diversity; Inventory.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200301
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Impactos do fogo sobre o componente arbustivo-arbóreo de um remanescente de Floresta Ombrófila Aberta, Areia, Estado da Paraíba - DOI: 10.4025/actascibiolsci.v31i4.4522 Biological Sciences
Xavier, Klerton Rodrigues Forte; Universidade Federal da Paraíba; Andrade, Leonaldo Alves de; Universidade Federal da Paraíba; Coelho, Maria do Socorro Evangelista; Universidade Federal da Paraíba; Assis, Felipe Nollet de Medeiros; Universidade Federal da Paraíba; Fabricante, Juliano Ricardo; Universidade Federal da Paraíba.
O objetivo do presente trabalho foi avaliar os impactos causados pelo fogo sobre o estrato arbustivo-arbóreo de um fragmento de Floresta Atlântica, em Areia, Paraíba. Foram plotadas 40 parcelas de 100 m2 em dois ambientes: floresta intacta (Ambiente I) e floresta queimada (Ambiente II). O presente levantamento incluiu indivíduos com diâmetro ao nível do solo (DNS) ≥ 3 cm, sendo a estrutura da vegetação avaliada por parâmetros convencionais. Calcularam-se, também, os índices de diversidade e de equabilidade, além da similaridade entre os ambientes. Foram amostrados 1.960 indivíduos, pertencentes a 22 famílias, 26 gêneros e 35 espécies. No Ambiente I, Protium heptaphyllum foi a espécie mais abundante e importante; no Ambiente II, sobressaíram-se os...
Tipo: Fitossociologia Palavras-chave: 2.05.00.00-9 incêndio florestal; Perfilhamento; Impactos ambientais; Floresta serrana 2.05.00.00-9 forest fire; Shoots; Environmental impacts; Mountain forest.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4522
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Impacts of the construction of the Port of Suape on phytoplankton in the Ipojuca River estuary (Pernambuco-Brazil) BABT
Koening,Maria Luise; Leça,Enide Eskinazi; Neumann-Leitão,Sigrid; Macêdo,Silvio José de.
In order to address the impact on phytoplankton, sampling was conducted monthly at 4 fixed stations, from April/86 to March/87 at diurnal low and high tide using a plankton net (65 mum mesh size) and a 1 L Van Dorn bottle. Among the 133 taxa identified, marine littoral euryhaline species were most common, outranking Gyrosigma balticum (Ehrenberg) Rabenhorst, Nitzschia sigma (Kützing) Wm. Smith, Licmophora abbreviata Agardh, Climacosphenia moniligera Ehrenberg, Surirella febigerii Lewis, Terpsinoe musica Ehrenberg and Cylindrotheca closterium (Ehrenberg) Reiman and Lewis. The port construction caused significant changes to the phytoplankton community with a strong influence of marine species (mainly dinoflagellate) because of the opening of the reef near...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Phytoplankton; Environmental impacts; Estuary; Suape Port.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100012
Registros recuperados: 33
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