Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
An Integrated Assessment approach to linking biophysical modelling and economic valuation tools AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W.; Jakeman, Tony.
Natural resource management (NRM) typically involves complex decisions that affect a variety of stakeholder values. Efficient NRM, which achieves the greatest net environmental, social and financial benefits, needs to integrate the assessment of environmental impacts with the costs and benefits of investment. Integrated assessment (IA) is one approach that incorporates the several dimensions of catchment NRM, by considering multiple issues and knowledge from various disciplines and stakeholders. Despite the need for IA, there are few studies that integrate biophysical modelling tools with economic valuation. In this paper, we demonstrate how economic non-market valuation tools can be used to support an IA of catchment NRM changes. We develop a Bayesian...
Tipo: Report Palavras-chave: Bayesian networks; Bio-economic modelling; Catchment management; Cost-benefit analysis; Environmental values; Integrated assessment and modelling; Non-market valuation; Riparian vegetation; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/94949
Imagem não selecionada

Imprime registro no formato completo
Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil Zoologia
Lunardi,Diana G.; Engel,Márcia H.; Macedo,Regina H. F..
Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountered in both areas, although mother-calf pairs were more common in AB. While these two regions comprise distinct concentrations of humpback whales, with intrinsic environmental differences, behavior patterns were quite similar. The only behavioral differences found where for "tail up" and "resting". The patterns found here may reflect differences in the protection status of the areas or intrinsic environmental differences.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abrolhos Bank; Bahia; Bayesian networks; Occidental South Atlantic; Reproductive season.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200001
Imagem não selecionada

Imprime registro no formato completo
Evaluation of Bayesian Networks in Participatory Water Resources Management, Upper Guadiana Basin, Spain Ecology and Society
Zorrilla, Pedro; Department of Geodynamics, Faculty of Geological Sciences, Complutense University of Madrid, Spain; pedro.zorrilla@geo.ucm.es; Carmona, Gema; Technical University of Madrid, Department of Agricultural Economics, Spain;; Varela-Ortega, Consuelo; Technical University of Madrid, Department of Agricultural Economics, Spain;; Bromley, John; Oxford University School of Geography and the Environment, Centre for Water Research, United Kingdom;; Henriksen, Hans Jorgen; Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark;.
Stakeholder participation is becoming increasingly important in water resources management. In participatory processes, stakeholders contribute by putting forward their own perspective, and they benefit by enhancing their understanding of the factors involved in decision making. A diversity of modeling tools can be used to facilitate participatory processes. Bayesian networks are well suited to this task for a variety of reasons, including their ability to structure discussions and visual appeal. This research focuses on developing and testing a set of evaluation criteria for public participation. The advantages and limitations of these criteria are discussed in the light of a specific participatory modeling initiative. Modeling work was conducted in the...
Tipo: Peer-Reviewed Reports Palavras-chave: Bayesian networks; Decision support system; Evaluation; Groundwater management; Guadiana Basin; Participatory modeling; Spain; Water management; Water use conflicts.
Ano: 2010
Imagem não selecionada

Imprime registro no formato completo
Integrated Hydro-Economic Modelling: Challenges and Experiences in an Australian Catchment AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
Integrated catchment policies are widely used to manage natural resources in Australian catchments. Integration of environmental processes with socio-economic systems is often difficult due to the limitations of decision support tools. To support assessments of the environmental and economic trade-offs of changes in catchment management, fully integrated models are needed. This research demonstrates a Bayesian Network (BN) approach to integrating environmental modelling with economic valuation. The model incorporates hydrological, ecological and economic models for the George catchment in Tasmania. Choice experiments were used to elicit information about the non-market costs and benefits of environmental changes. This allows the efficiency of alternative...
Tipo: Report Palavras-chave: Hydro-economic modelling; Integrated catchment modelling; Ecological modelling; Valuation; Bayesian networks; Water quality; Community/Rural/Urban Development; Environmental Economics and Policy; Land Economics/Use.
Ano: 2009 URL: http://purl.umn.edu/94815
Imagem não selecionada

Imprime registro no formato completo
Integrating economic values and catchment modelling AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
Integrated catchment policies are widely used to manage natural resources in Australian catchments. Decision support tools available to aid integrated catchment management are often limited in their integration of environmental processes with socio-economic systems. Fully integrated models are required to support assessments of the environmental and economic trade-offs of catchment management changes. A Bayesian Network (BN) model is demonstrated to provide a suitable approach to integrate environmental modelling with economic valuation. The model incorporates hydrological, ecological and economic models for the George catchment in Tasmania. Information about the non-market costs and benefits of environmental changes is elicited using Choice Experiments,...
Tipo: Conference Paper or Presentation Palavras-chave: Integrated catchment modelling; Bayesian networks; Uncertainty; Environmental values; Non-market valuation; Choice Modelling..
Ano: 2009 URL: http://purl.umn.edu/48057
Imagem não selecionada

Imprime registro no formato completo
Integrating economic values and catchment modelling AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W..
Integrated catchment policies are widely used to manage natural resources in Australian catchments. Decision support tools available to aid integrated catchment management are often limited in their integration of environmental processes with socio-economic systems. Fully integrated models are required to support assessments of the environmental and economic trade-offs of catchment management changes. A Bayesian Network (BN) model is demonstrated to provide a suitable approach to integrate environmental modelling with economic valuation. The model incorporates hydrological, ecological and economic models for the George catchment in Tasmania. Information about the non-market costs and benefits of environmental changes is elicited using Choice Experiments,...
Tipo: Conference Paper or Presentation Palavras-chave: Integrated catchment modelling; Bayesian networks; Uncertainty; Environmental values; Non-market valuation; Choice Modelling..
Ano: 2009 URL: http://purl.umn.edu/47956
Imagem não selecionada

Imprime registro no formato completo
Participatory Building of a Decision Support System for Adaptive Water Management in the Upper Guadiana Basin AgEcon
Carmona, Gema; Varela-Ortega, Consuelo.
Water management has evolved in the last years towards more integrated and participatory approaches, aiming at improving the adaptability of water systems. Following this line, we propose a methodology to build a decision support system, based on the participation of stakeholders and the integration of the different disciplines involved in water use, as well as the inclusion of uncertainties in the management planning. The process has been implemented in the Upper Guadiana basin (Spain) with the aim of solving the existing conflicts: the aquifer, which is the main water source in the area, has been over-exploited during the last decades for irrigation. This has lead to serious degradation of natural water-related ecosystems and important social conflicts....
Tipo: Conference Paper or Presentation Palavras-chave: Decision support system; Bayesian networks; Economic model; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/43855
Imagem não selecionada

Imprime registro no formato completo
Stakeholder involvement in water management using Object-oriented Bayesian networks and economic models in Spain. AgEcon
Carmona, Gema; Varela-Ortega, Consuelo; Bromley, John.
The Upper Guadiana basin, in Spain, presents important conflicts between the agricultural sector and the environment due to their competence for water resources. The high development of irrigation has led to the over-exploitation of the aquifers, which are the main source of water in the area, and to the loss of wetlands of high ecological value. The River Basin Authority (RBA) has recently designed a new water management plan which included a group of measures aimed at reducing water consumption. Our objective is the development, with the active participation of the stakeholders, of a decision support system composed of an economic model and an object-oriented Bayesian network, used to evaluate the trade-off between agricultural economy and the...
Tipo: Conference Paper or Presentation Palavras-chave: Bayesian networks; Groundwater management; Stakeholder participation; Environmental Economics and Policy; Farm Management; Land Economics/Use; Resource /Energy Economics and Policy; Q15; Q25; Q56.
Ano: 2009 URL: http://purl.umn.edu/49897
Registros recuperados: 8
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional