Avaliação económica de tarifas de água no uso agrícola: um estudo de caso no Sul de Portugal

Fragoso, Rui; Marques, Carlos

doi:10.1590/s0103-20032009000300008

Cited by 4 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Caswell and Zilberman (1985) argue that high water prices lead farmers to adopt more efficient technologies and thereby save water. However, Fragoso and Marques (2009, 2015) and Gomez-Limón and Riesgo (2004) in studies applied to Portugal and Spain argue that irrigated areas promote economic and social development, and pricing policy may not have the expected effects. It can even lead to great losses in farm income and resource allocation due to the low elasticity of water demand in certain types of irrigated areas.…”

Section: Resultsmentioning

confidence: 99%

Economic effects of climate change on the Mediterranean’s irrigated agriculture

Fragoso

Noéme

2018

SAMPJ

View full text Add to dashboard Cite

Purpose This paper aims to assess the economic effects of climate change on the Mediterranean’s irrigated agriculture and how the adoption of alternative crop varieties adapted to the expected length of the growing season can be an effective adaptation measure. Design/methodology/approach A case study of two irrigation areas in Southern Portugal is used to assess the response to climate change impacts on crop yields and irrigation requirements, and an agricultural supply model is calibrated using a positive mathematical programming (PMP) approach was developed. Findings Climate change reduces crop yields and causes a slight decrease in irrigation requirements, which could allow an increase in the irrigated area. However, positive impacts on rural areas regarding employment and investment are not expected. The adoption of adaptation measures based on alternative crop varieties, which could maintain crop yields at current levels, increases dramatically the economic value of water and mitigates losses in farm income. Research limitations/implications The impacts on output and input market prices, as well as other biophysical impacts (for instance, CO2 and water availability), are important in understanding the effects of climate change on irrigated agriculture, but they were not considered in this study. While this may be a limitation, it can also be a stimulus for further research. Practical implications This is an empirical paper, whose results contribute to improving knowledge about the effects of climate change on irrigated agriculture in Mediterranean areas, namely, its economic impacts on returns and the use of agricultural resources (land, water, labour and capital). Other practical implications of the paper are associated with the methodological approach, which provides a framework able to deal with the complexity and multidimensional effects of climate change. Social implications The results of the paper provide important information for scientists, politicians and other stakeholders about the design of more effective adaptation measures able to mitigate the effects of climate change. Originality/value Crop yields and irrigation requirements were previously calculated based on data generated by the regional climate models. This is the first time that an application is developed for Portugal. Two distinct profiles of irrigation areas were studied and a large set of crops was considered, which is not common in the existing studies. To specify the PMP approach used to calibrate the agricultural supply model, exogenous crop-specific supply elasticities were estimated through a least square model, which is not common in previous studies.

show abstract

Section: Resultsmentioning

confidence: 99%

Economic effects of climate change on the Mediterranean’s irrigated agriculture

Fragoso

Noéme

2018

SAMPJ

View full text Add to dashboard Cite

show abstract

“…Payment of conservation fees is compulsory for all landowners in the system, regardless of whether they choose to irrigate or not. The irrigation conservation costs make intensification capacity more dependent on access to capital or credit (ec, 2014;Fragoso and Marques, 2009). The cost of Irrigation Conservation Fees (55 Euros/hectare for water provided with higher pressure and 20 Euros/hectare for water provided on low pressure in November 2017) is a significant driver for smaller farmers to sell to private investors/companies interested in large-scale intensive farming.…”

Section: Spatialmentioning

confidence: 99%

The sustainability of agricultural intensification in the early 21st century:insights from the olive oil production in Alentejo (Southern Portugal)

Silveira¹,

Ferrão²,

Muñoz-Rojas³

et al. 2018

Changing Societies: Legacies and Challenges. The Diverse Worlds of Sustainability

View full text Add to dashboard Cite

A competitividade do regadio de Alqueva em Portugal: o caso do bloco de rega do Monte Novo

Santos

Fragoso

Henriques

et al. 2012

Rev. Econ. Sociol. Rural

View full text Add to dashboard Cite

Resumo: O objectivo deste estudo é avaliar a competitividade do regadio de Alqueva no Sul de Portugal na região Alentejo. O estudo foi realizado com base em três grupos de explorações agrícolas representativas seleccionadas de uma amostra de explorações agrícolas do bloco de rega do Monte Novo. Para cada uma delas, foi desenvolvido um modelo de programação matemática multi período adaptado às suas características específicas. Os principais resultados permitem concluir que a Política Agrícola Comum e a Directiva Quadro da Água condicionam a competitividade do regadio nesta região. No entanto, a adopção de novas tecnologias de produção permitirá contrariar esses efeitos negativos e assegurar a competitividade futura do regadio.Palavras-chaves: regadio, programação multiperíodo, investimento, política agrícola comum. Abstract: The main purpose of this paper is evaluating the competitiveness of the Alqueva irrigation project in the Alentejo

show abstract

Avaliação económica de tarifas de água no uso agrícola: um estudo de caso no Sul de Portugal

Cited by 4 publications

References 7 publications

Economic effects of climate change on the Mediterranean’s irrigated agriculture

Economic effects of climate change on the Mediterranean’s irrigated agriculture

The sustainability of agricultural intensification in the early 21st century:insights from the olive oil production in Alentejo (Southern Portugal)

A competitividade do regadio de Alqueva em Portugal: o caso do bloco de rega do Monte Novo

Contact Info

Product

Resources

About