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| Registros recuperados: 28 | |
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| 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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| 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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| 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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| 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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| Paschoalini,Alessandro Loureiro; Perini,Violeta da Rocha; Ribeiro,Dirceu Marzulo; Formagio,Paulo Sérgio; Rizzo,Elizete; Bazzoli,Nilo. |
| The alterations to the hydrologic regime downstream from hydroelectric dams may cause an impact on the reproductive success of fishes. This study aimed to analyse the influence of the physical and chemical parameters of the water of the Grande and Pardo Rivers on gonadal maturation, oocyte diameter, follicular atresia and biological indices of Pimelodus maculatus collected from three river sections: Grande River, downstream from the Porto Colômbia dam (S1), Grande River, downstream from the confluence with the Pardo River (S2) and in the Pardo River channel (S3). Males and females captured in S1 presented significantly higher average values for total length and body weight than those captured in S2 and S3. The gonadosomatic index values were significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic factors; Dam impacts; Environmental impacts; Gonadosomatic index. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300615 |
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| Hilário,R.R; Castro,S.A.B; Ker,F.T.O; Fernandes,G. |
| Several degraded areas can be found along the Highway MG-010 that crosses the Espinhaço Mountain Biosphere Reserve in the Brazilian state of Minas Gerais. Restoration by planting the legume Cajanus cajan was implemented in some of these areas. The present study compares plant species richness, diversity, abundance, equitability, similarity, and soil composition between restored and non-restored areas, in an attempt to evaluate the effectiveness of the use of C. cajan in the restoration process in the mountain environment. Each treatment (restored and non-restored) had four sampling areas, each with three 300 m² plots. We counted and identified every individual plant found within these plots. We also collected soil from the superficial layer (0-10 cm) of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental impacts; Restoration ecology; Serra do Cipó; Tropical mountains. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000400001 |
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| 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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| Ball, V. Eldon; Lovell, C.A. Knox; Luu, H.; Nehring, Richard F.. |
| Agricultural production is known to have environmental impacts, both adverse and beneficial, and it is desirable to incorporate at least some of these impacts in an environmentally sensitive productivity index. In this paper, we construct indicators of water contamination from the use of agricultural chemicals. These environmental indicators are merged with data on marketed outputs and purchased inputs to form a state-by-year panel of relative levels of outputs and inputs, including environmental impacts. We do not have prices for these undesirable by products, since they are not marketed. Consequently, we calculate a series of Malmquist productivity indexes, which do not require price information. Our benchmark scenario is a conventional Malmquist... |
| Tipo: Journal Article |
Palavras-chave: Environmental impacts; Productivity growth; Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/30911 |
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| Segarra, Eduardo; Torre Ugarte, Daniel de la; Malaga, Jaime E.; Williams, Gary W.. |
| A non-linear optimization model which maximizes total Ecuadorian social welfare, defined as the sum of consumers' and producers' surpluses for the four major crops (corn, bananas, rice and African palm) is developed to evaluate the tradeoff between welfare and environmental degradation in Ecuador. It was found that a total welfare loss of US$122 million (a 11 percent reduction - from US$ 1.112 billion to US$ 989.66 million) would be expected from a 30 percent reduction in the total pesticide load on the environment in the production of the four major crops. The distributional impacts of the welfare loss were found, however, to be significantly skewed toward the loss of consumers' surplus. Specifically, a 30 percent reduction of total pesticide load on... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Welfare tradeoff; Environmental impacts; Non-linear optimization; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/25822 |
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| Wallander, Steven; Claassen, Roger; Nickerson, Cynthia J.. |
| The recent 9-billion-gallon increase in corn-based ethanol production, which resulted from a combination of rising gasoline prices and a suite of Federal bioenergy policies, provides evidence of how farmers altered their land-use decisions in response to increased demand for corn. As some forecasts had suggested, corn acreage increased mostly on farms that previously specialized in soybeans. Other farms, however, offset this shift by expanding soybean production. Farm-level data reveal that the simultaneous net expansion of corn and soybean acreage resulted from a reduction in cotton acreage, a shift from uncultivated hay to cropland, and the expansion of double cropping (consecutively producing two crops of either like or unlike commodities on the same... |
| Tipo: Report |
Palavras-chave: Agricultural Resource Management Survey (ARMS); Bioenergy; Ethanol; Indirect effects; Land use; Corn production; Environmental impacts; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/117982 |
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| Zanatta,Josiléia Acordi; Bayer,Cimélio; Vieira,Frederico C.B.; Gomes,Juliana; Tomazi,Michely. |
| Nitrogen fertilizers increase the nitrous oxide (N2O) emission and can reduce the methane (CH4) oxidation from agricultural soils. However, the magnitude of this effect is unknown in Southern Brazilian edaphoclimatic conditions, as well as the potential of different sources of mineral N fertilizers in such an effect. The aim of this study was to investigate the effects of different mineral N sources (urea, ammonium sulphate, calcium nitrate, ammonium nitrate, Uran, controlled- release N fertilizer, and urea with urease inhibitor) on N2O and CH4 fluxes from Gleysol in the South of Brazil (Porto Alegre, RS), in comparison to a control treatment without a N application. The experiment was arranged in a randomized block with three replications, and the N... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen fertilization; Environmental impacts; Agriculture; Greenhouse effect. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500018 |
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| 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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| 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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| Registros recuperados: 28 | |
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