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Registros recuperados: 10 | |
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Casatti,Lilian; Brejão,Gabriel Lourenço; Carvalho,Fernando Rogério; Silva,Hugmar Pains da; Pérez-Mayorga,María Angélica; Manzotti,Angelo Rodrigo; Zeni,Jaquelini de Oliveira; Ramires,Bruno Martins Santos; Langeani,Francisco. |
Abstract: The replacement of tropical forests to production systems is one of the leading causes of riverine ecosystem alterations. However, current assemblages’ composition may also result from the time since these transformations have begun. Therefore, the knowledge of diversified historical scenarios can facilitate the accomplishment of actions that involve the aquatic environments recovery. In this study, an inventory of stream fish was carried out in basins whose deforestation was intensified in the last 20 years, to compose a baseline for ecological and taxonomic studies. The habitat, physical and chemical variables, and the fish assemblages from 60 streams in the northwest region of the state of Mato Grosso, in the Aripuanã and Juruena river basins,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inventory; Neotropical ichthyofauna; Deforestation; Baseline; Characidae. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100309 |
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Maes, Thomas; Van Der Meulen, Myra D; Devriese, Lisa L.; Leslie, Heather A.; Huvet, Arnaud; Frere, Laura; Robbens, Johan; Vethaak, Dick A.. |
Microplastic contamination was determined in sediments of the Southern North Sea and floating at the sea surface of North West Europe. Floating concentrations ranged between zero and 1.5 microplastic/m3, whereas microplastic concentrations in sediments ranged between zero and 3146 particles/kg dry weight sediment. In sediments, mainly fibers and spheres were found, whereas at the sea surface fragments were dominant. At the sea surface, concentrations of microplastics are lower and more variable than in sediments, meaning that larger sample sizes and water volumes are required to find detectable concentrations. We have calculated the widths of the confidence intervals (CI) for different sample sizes, to give a first indication of the necessary sample size... |
Tipo: Text |
Palavras-chave: Microplastics; Marine litter; Floating debris; Sediment; Marine Strategy Framework Directive (MSFD); Baseline. |
Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00384/49505/49999.pdf |
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Lee, Jonq-Ying. |
Baseline estimates are generated using the Box-Jenkins time series expectation of non-promoted volume calculated at the store/week/UPC level. The expectation of sales is a weighted moving average of weekly observations of normal non-promoted volume. The relationship between baseline volume and promotional activities was examined using the ordinary least squares method in this analysis. |
Tipo: Report |
Palavras-chave: Baseline; Orange juice; Nielsen; Agribusiness. |
Ano: 2006 |
URL: http://purl.umn.edu/36833 |
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Tuyen, Tran Minh; Michaelowa, Axel. |
For projects under the Clean Development Mechanism (CDM), a baseline has to be set to allow calculation of the greenhouse gas emissions reductions achieved. An important obstacle to CDM project development is the lack of data for baseline definition; often project developers do not have access to data and therefore incur high transaction costs to collect them. The government of Vietnam has set up all necessary institutions for CDM, wants to promote CDM projects and thus is interested to reduce transaction costs. We calculate emission factors of the Vietnam electricity grid according to the rules defined by the CDM Executive Board for small scale projects and for large renewable electricity generation projects. The emission factors lie between 365 and 899 g... |
Tipo: Working or Discussion Paper |
Palavras-chave: CDM; Baseline; Electricity generation; Vietnam; Public Economics; Risk and Uncertainty; D62; F18; Q25; Q41. |
Ano: 2004 |
URL: http://purl.umn.edu/26393 |
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Golub, Alla A.; Hertel, Thomas W.; Sohngen, Brent. |
The goal of this work is to investigate land-use change at the global scale over the long run particularly in the context of analyzing the fundamental drivers behind land-use related GHG emissions. For this purpose, we identify the most important drivers of supply and demand for land. On the demand side, we begin with a dynamic general equilibrium (GE) model that predicts economic growth in each region of the world, based on exogenous projections of population, skilled and unskilled labor and technical change. Economy-wide growth is, in turn, translated into consumer demand for specific products using an econometrically estimated, international cross-section, demand system that permits us to predict the pattern of future consumer demands across the... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Land use; Climate change policy; Baseline; General equilibrium; Agro-ecological zones; C68; R14; Q24; Land Economics/Use. |
Ano: 2007 |
URL: http://purl.umn.edu/9910 |
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Wailes, Eric J.; Chavez, Eddie C.. |
This publication contains recent baseline projections from the Arkansas Global Rice Economics Program (AGREP) for U.S. and international rice economies. These projections serve as a baseline for evaluating and comparing alternative macroeconomic, policy, weather, and technological scenarios. They are intended for use by government agencies and officials, farmers, consumers, agribusinesses and others who conduct medium-range and long-term planning. The AGREP baseline projections are grounded in a series of assumptions about the general economy, agricultural policies, weather, and technological change. It is generally assumed that current agricultural policies will be continued in the United States and other countries reported in this study. The AGREP World... |
Tipo: Technical Report |
Palavras-chave: International rice; Baseline; Policy; Deterministic; Stochastic; Arkansas Global Rice Model; Demand and Price Analysis; Land Economics/Use; C02; F01; F14; F17; Q17; Q18; R11. |
Ano: 2012 |
URL: http://purl.umn.edu/123203 |
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Registros recuperados: 10 | |
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