Showing papers by "Julio Berbel published in 2017"

Agricultural Irrigation Water Use in a Closed Basin and the Impacts on Water Productivity: The Case of the Guadalquivir River Basin (Southern Spain)

Abstract: This paper analyses the agricultural irrigation water use in a closed basin and the impacts on water productivity, and examines how they have affected the ‘closure’ process of the Guadalquivir river basin observed in recent decades. Following a period of expansion in irrigation, an administrative moratorium was declared on new irrigated areas in 2005. Since then, the main policy measure has been aimed at the modernisation of irrigated agriculture and the implementation of water conservation technologies. The analysis carried out in this paper shows a significant increase in mean irrigation water productivity in the pre‐moratorium period (1989–2005), driven by the creation of new irrigated areas devoted to high value crops and with a dominant use of deficit irrigation strategies, while a second phase (2005–2012) is characterised by slower growth in terms of the mean productivity of irrigation water, primarily as a result of a significant reduction in water use per area. Findings show that productivity gains seem to have reached a ceiling in this river basin, since technological innovations (such as new crops, deficit irrigation, and water‐saving and conservation technologies) have reached the limits of their capacity to create new value.

Why is water pricing ineffective for deficit irrigation schemes? A case study in southern Spain.

Abstract: This paper explores the impact on water demand of the adoption of deficit and precision irrigation as a farmer’s attempt to respond to water scarcity by maximising water productivity. The case study is characterised by the intensive use of deficit irrigation techniques in olive groves, which account for 50% of all irrigated land in southern Spain. These technologies have an important influence on the structure of the water demand. This study reveals that following the adoption of such technologies, water demand does not respond to moderate changes in water price, unless price increases become so great that they reach a threshold price representing a disproportionate and unaffordable social impact. This fact has significant consequences for water policy as water pricing becomes an ineffective instrument for managing water demand in a context characterised by resource scarcity and farmers’ adoption of deficit irrigation techniques.

The Economic Analysis of Water Use in the Water Framework Directive Based on the System of Environmental-Economic Accounting for Water: A Case Study of the Guadalquivir River Basin

Abstract: This paper develops a methodology for the economic analysis of water use proposed by the Water Framework Directive (WFD) based on the System of Environmental-Economic Accounting for Water (SEEA-Water) standard tables. Our proposal satisfies the requirements for the economic characterization set out in Article 5 of the WFD. A case study in the Guadalquivir river basin shows a similar characterization in the baseline scenario to previous studies, including apparent water productivity. The main contribution of our research, however, is the proposal of a methodology that would enhance comparability and knowledge-sharing between regions, countries, and sectors both in the European Union and worldwide.

Sustainability Implications of Deficit Irrigation in a Mature Water Economy: A Case Study in Southern Spain

Abstract: Deficit irrigation (DI) is an agricultural practice in which the volume of irrigation water applied during the crop cycle is below the irrigation requirements for maximum production, the aim of which is to increase irrigation water productivity. Most research on this technique has focused on agronomic strategies while the economic and environmental consequences have received little attention. This study aims to shed some light on this matter and presents preliminary results regarding the implications of DI with respect to the sustainable use of water resources. The analysis is based on the DPSIR analytical framework (Driving force/Pressure/State/Impact/Response) and the microeconomics of DI. The case study focuses on intensive olive groves in the Guadalquivir river basin in Southern Spain (where olive cultivation accounts for 50% of the total irrigated area). The analysis shows that the widespread use of DI practices, which is the farmers’ response to a decreasing net water supply and falling farm incomes (driving force) in the context of a mature water economy, may help to break the DPSIR chain of causality, provided that there are restrictions on any expansion in irrigated area. They can, thus, play a role in achieving sustainable water use. Conversely, demand and supply (regulator) responses involving raising the price of water would lead to higher pressures on the resource and represent a negative driving force in our DPSIR model.

Farmers' stated responses towards the chemicals use under the CAP liberalization

Abstract: Th e research aims to analyze the farmers' preferences towards the chemical input use in the case of the Common Agricultural Policy (CAP) being removed after 2013. Th e analysis is based on a survey of European farmers carried out in 2009. Th e intended responses of farmers to the CAP liberalization are analyzed by the logit model regressions. Although for the majority of respondents there would be no change in their intentions if the CAP were suppressed, about 20% would intend to decrease the amount of chemicals. Th e eff ects of the CAP liberalization appear not to be univocal and strongly case-specifi c, as it substantially diff ers across the European regions, farm locations and socio-economic structures.

Water Economics and Policy

Abstract: Economics plays a double role in the field of water management, firstly as a powerful analytical tool supporting water allocation and policy decisions, and secondly in the form of policy instruments (water pricing, markets, etc.). This Special Issue presents a platform for sharing results connecting excellent interdisciplinary research applied to different regional and sectoral problems around the world. The 22 peer-reviewed papers collected in this Special Issue have been grouped into five broad categories: Water valuation and accounting; Economic instruments; Cost effectiveness and cost-benefit analysis; and Water productivity and Governance. They are briefly presented.

Proyecto Horizonte 2020: Providing smart delivery of public goods by EU agriculture and forestry (PROVIDE)

Abstract: Boletín de difusión de la Transferencia del Conocimiento de la Universidad de Córdoba Los bienes públicos son aquellos productos y servicios que, intencionadamente o no, son producidos por agentes económicos y que presentan ciertas características que hacen que no puedan intercambiarse a través de los mercados. Por este motivo los productores de los mismos no reciben remuneración alguna por su provisión.