30 research outputs found
Application of data envelopment analysis to evaluate investments in the modernization of collective management irrigation systems in Valencia (Spain)
[EN] Climate change and increased competition for water resources are generating growing concern about how to improve water-use efficiency in agriculture. In turn, this has prompted substantial investments in the installation of water-saving technologies in irrigation systems. The first aim of this research is to use data envelopment analysis to quantify, in terms of gross water savings (GWS), the local-scale efficiency of the irrigation policies adopted in an area of Spain suffering from a structural water deficit. Second, the cross-efficiency method is used to produce a ranking of the irrigation organizations analysed, in order to identify patterns of water-use efficiency performance that can guide future lines of investment. The results reveal that water-use efficiency prior to modernization is a key determinant of the efficiency achieved in terms of GWS at local scale. However, the investments targeted at irrigation modernization often have objectives other than water savings. These and other aspects should be taken into account when allocating public funds to irrigation modernization.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This
study has been supported by the ADAPTAMED project ((RTI2018-101483-B-I00) and by the former IMPADAPT project (CGL2013-48424-C2-1-R) with Spanish MINECO (Ministerio de Economía y Competitividad) and European FEDER funds.García Molla, M.; Puertas Medina, RM.; Sanchis Ibor, C. (2021). Application of data envelopment analysis to evaluate investments in the modernization of collective management irrigation systems in Valencia (Spain). Water Resources Management. 35:5011-5027. https://doi.org/10.1007/s11269-021-02986-1S501150273
Hybridizing the commons. Privatizing and outsourcing collective irrigation management after technological change in Spain
[EN] During the last decades, several regions of the world have experienced an increasingly forceful penetration by commercial service companies into irrigation water management, altering the institutional structures and procedures of common-pool resources management. In many cases, private-sector penetration takes place when water user organizations require a company to implement high-tech water control such as pressurized irrigation systems, as part of 'modernization policies'. This study focuses on four representative cases of these processes with differing degrees of private-enterprise penetration in the Valencia Region (Spain). The research analyzes the strategies of collective-private confrontation and collaboration that are emerging in irrigator communities, and characterize how they affect the management of these irrigation systems. Results show how private enterprise intrusion has unequally affected the interactions between the different components of these irrigation systems. This has created different hybrids between private and common pool-resources management institutions, as well as different autonomies, dependencies and socio-political subjects. Users' capacity to guide this coproduction process and maintain local control over their irrigation systems is essential to ensure the stability and preserve the robustness of each irrigation system. The quality of human capital and the recognition of collective water management values makes irrigation entities more robust vis-a-vis external pressures and disturbances, which in some of the cases analyzed have generated major social conflicts.This work has been done under the research project on Design and evaluation of strategies to adapt to global climate change in Mediterranean watersheds by using irrigation water intensively (ADAPTAMED) funded by the Ministry of Science, Innovation and Universities of Spain with FEDER funding.García Molla, M.; Ortega-Reig, M.; Boelens, R.; Sanchis Ibor, C. (2020). Hybridizing the commons. Privatizing and outsourcing collective irrigation management after technological change in Spain. World Development. 132. https://doi.org/10.1016/j.worlddev.2020.10498313
The effects of irrigation modernization on the cost recovery of water in the Valencia Region (Spain)
The modernization of the irrigation systems has been the main strategy followed by the regional administration of the Valencia Region to cope with the structural water deficit of the region, which has been particularly severe during the last three decades. These policies have been oriented to the substitution of gravity irrigation systems for drip technology. The technological change has involved an important investment effort, developed by different public administrations and also the farmers and water users associations (WUAs). This transformation, has also involved a change in the structure of costs of the WUAs. This paper analyzes the changes in costs and tariffs of irrigation after
the important investments made in the modernization of irrigation. The effects of subsidies on the percentage of the cost recovery in the services of water for irrigation are also considered. All of them have developed modernization projects in the recent years. It can be concluded that conflict between two objectives proposed by the Water Framework Directive may exist. On the one hand, significant reductions of water supply are observed; meanwhile, on the other hand, the cost recovery percentage diminishes significantly.García Molla, M.; Ortega Reig, MV.; Sanchis Ibor, C.; Avella Reus, LF. (2014). The effects of irrigation modernization on the cost recovery of water in the Valencia Region (Spain). Water Science and Technology: Water Supply. 14(3):414-420. doi:10.2166/ws.2013.215S41442014
Interest group perceptions on water policy reforms: insight from a water-stressed basin
[EN] Water policies have been implemented worldwide to face water stress. However, the existence of water users' groups with opposite interests and different political power results in the plain failure or low effectiveness of water policy reforms. A better understanding of users' perceptions regarding policy outcomes is important to avoid the failure of water policies and the intensification of water conflicts. This paper empirically examines the divergent perception of interest groups on the implementation of different policies dealing with water scarcity and their proactive involvement with water agencies. We have conducted a survey in the Jucar River Basin (a water-stressed basin in southeastern Spain) to analyze interest group opinions regarding water policy effectiveness and water institutions' performance in water management. Questionnaires were sent to the main irrigation districts and urban water utilities within the basin. The collected information gives a general picture of the behavior of opposite water interest groups in this basin. The analysis of the perceptions on water policy reform between the groups highlights the existence of significant differences between preferred measures to address water scarcity and lobbying capacity. These differences depend on the size of the group, the specific basin location, and other group characteristics.Esteban, E.; Dinar, A.; Albiac-Murillo, J.; Calera, A.; García Molla, M.; Avella Reus, LF. (2018). Interest group perceptions on water policy reforms: insight from a water-stressed basin. Water Policy. 20(4):794-810. https://doi.org/10.2166/wp.2018.114S794810204Böhmelt, T., Bernauer, T., Buhaug, H., Gleditsch, N. P., Tribaldos, T., & Wischnath, G. (2014). Demand, supply, and restraint: Determinants of domestic water conflict and cooperation. Global Environmental Change, 29, 337-348. doi:10.1016/j.gloenvcha.2013.11.018Devlin, C., & Hendrix, C. S. (2014). Trends and triggers redux: Climate change, rainfall, and interstate conflict. Political Geography, 43, 27-39. doi:10.1016/j.polgeo.2014.07.001Estrela T. , (2004). Jucar Pilot River Basin: Provisional Article 5 Report. Oficina de Planificación Hidrográfica. Confederación Hidrográfica del Júcar. Ministerio de Medio Ambiente, Valencia, Spain.Gandure, S., Walker, S., & Botha, J. J. (2013). Farmers’ perceptions of adaptation to climate change and water stress in a South African rural community. Environmental Development, 5, 39-53. doi:10.1016/j.envdev.2012.11.004Gizelis, T.-I., & Wooden, A. E. (2010). Water resources, institutions, & intrastate conflict. Political Geography, 29(8), 444-453. doi:10.1016/j.polgeo.2010.10.005Greiner, R., & Gregg, D. (2011). Farmers’ intrinsic motivations, barriers to the adoption of conservation practices and effectiveness of policy instruments: Empirical evidence from northern Australia. Land Use Policy, 28(1), 257-265. doi:10.1016/j.landusepol.2010.06.006Greiner, R., Patterson, L., & Miller, O. (2009). Motivations, risk perceptions and adoption of conservation practices by farmers. Agricultural Systems, 99(2-3), 86-104. doi:10.1016/j.agsy.2008.10.003Hendrix, C. S., & Glaser, S. M. (2007). Trends and triggers: Climate, climate change and civil conflict in Sub-Saharan Africa. Political Geography, 26(6), 695-715. doi:10.1016/j.polgeo.2007.06.006Kahil, M. T., Ward, F. A., Albiac, J., Eggleston, J., & Sanz, D. (2016). Hydro-economic modeling with aquifer–river interactions to guide sustainable basin management. Journal of Hydrology, 539, 510-524. doi:10.1016/j.jhydrol.2016.05.057Mekonnen, M. M., & Hoekstra, A. Y. (2016). Four billion people facing severe water scarcity. Science Advances, 2(2), e1500323. doi:10.1126/sciadv.1500323Mertz, O., Mbow, C., Reenberg, A., & Diouf, A. (2008). Farmers’ Perceptions of Climate Change and Agricultural Adaptation Strategies in Rural Sahel. Environmental Management, 43(5), 804-816. doi:10.1007/s00267-008-9197-0Ortega-Reig, M., Palau-Salvador, G., Cascant i Sempere, M. J., Benitez-Buelga, J., Badiella, D., & Trawick, P. (2014). The integrated use of surface, ground and recycled waste water in adapting to drought in the traditional irrigation system of Valencia. Agricultural Water Management, 133, 55-64. doi:10.1016/j.agwat.2013.11.004Pérez-Martín, M. A., Estrela, T., Andreu, J., & Ferrer, J. (2014). Modeling Water Resources and River-Aquifer Interaction in the Júcar River Basin, Spain. Water Resources Management, 28(12), 4337-4358. doi:10.1007/s11269-014-0755-3Raleigh, C., & Urdal, H. (2007). Climate change, environmental degradation and armed conflict. Political Geography, 26(6), 674-694. doi:10.1016/j.polgeo.2007.06.005Sanz, D., Gómez-Alday, J. J., Castaño, S., Moratalla, A., De las Heras, J., & Martínez-Alfaro, P. E. (2009). Hydrostratigraphic framework and hydrogeological behaviour of the Mancha Oriental System (SE Spain). Hydrogeology Journal, 17(6), 1375-1391. doi:10.1007/s10040-009-0446-yUrquijo, J., & De Stefano, L. (2015). Perception of Drought and Local Responses by Farmers: A Perspective from the Jucar River Basin, Spain. Water Resources Management, 30(2), 577-591. doi:10.1007/s11269-015-1178-5Van Oel, P. R., Krol, M. S., & Hoekstra, A. Y. (2009). A river basin as a common‐pool resource: A case study for the Jaguaribe basin in the semi‐arid Northeast of Brazil. International Journal of River Basin Management, 7(4), 345-353. doi:10.1080/15715124.2009.9635393Ward, F. A., & Pulido-Velazquez, M. (2008). Water conservation in irrigation can increase water use. Proceedings of the National Academy of Sciences, 105(47), 18215-18220. doi:10.1073/pnas.080555410
Las políticas de implantación del riego localizado. Efectos en las entidades de riego de la Comunidad Valenciana
Los trabajos se publican bajo una licencia de Creative Commons Reconocimiento-NoComercial 4.0 Internacional, salvo que se indique lo contrario. Esto es que se puede compartir y adaptar el material siempre que medie atribución del autor/es, del primer medio que publica y se proporcione un enlace a la licencia. Igualmente hay que indicar si se han realizado cambios. No se permite el uso del material con fines comerciales.[EN] During the last 30 years, regional and central administrations and farmers have done
an important financial effort in order to promote irrigation modernization in the Valencia
Region. This policy, a corollary of a National investment on demand management, has
been materialized in an important expansion of drip irrigation techniques. The aim of this article, based on numerous interviews, is to analyze the effects of this policy on water user’s
associations, which have undergone significant changes in water supply, organization,
irrigation efficiency and water costs in the last decades.[ES] Durante los últimos treinta años, las administraciones públicas y las entidades de
riego han efectuado un importante esfuerzo destinado a modernizar los regadíos valencianos.
Esta política hidráulica, consecuencia de la adopción de un modelo de gestión de la
demanda, se ha materializado en una importante expansión del riego por goteo. El artículo
analiza, a partir de diversas entrevistas, los efectos de la modernización sobre unas entidades
de riego que han experimentado cambios en la eficiencia del riego, organización, usos
y costos de agua.Sanchis Ibor, C.; García Molla, M.; Avella Reus, LF. (2016). Las políticas de implantación del riego localizado. Efectos en las entidades de riego de la Comunidad Valenciana. Boletín de la Asociación de Geógrafos Españoles. 72:9-35. doi:10.21138/bage.23309357
From local knowledge to decision making in climate change adaptation at basin scale. Application to the Jucar River Basin, Spain
[EN] Climate change is challenging the conventional approaches for water systems planning. Two main approaches are commonly implemented in the design of climate change adaptation plans: impact-oriented top-down approaches and vulnerability-oriented bottom-up approaches. In order to overcome the shortcomings of both approaches and take advantage of their strengths, we propose an integrative methodology to define adaptation strategies at basin scale, identifying and combining potential changes in water demand and water supply infrastructure along with climate variability and change. The impact of climate change on future local water availability is assessed applying a top-down approach. Local knowledge is used through a participatory bottom-up approach to foresee future scenarios of evolution of the agricultural sector and agricultural water demand, and to identify locally relevant adaptation strategies. A hydroeconomic model integrates the information from both approaches to identify a socially acceptable and cost-effective program of measures for each climate scenario. This method was applied to the Jucar basin, a highly regulated basin with a tight equilibrium between water resources and demands. The results show an important variability of climate change impacts across the basin, with main inflow reductions in the headwaters. The stakeholders prioritized the adaptation options of change to drip irrigation, use of non-conventional resources, and changes in water governance. The results obtained from the hydroeconomic model show that the portfolio of selected adaptation measures could significantly reduce the system's average annual deficit and costOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This study has received funding from the European Union's Horizon 2020 research and innovation programme under the GoNEXUS project (GA no. 101003722), as well from ADAPTAMED (RTI2018-101483-B-I00) and the former IMPADAPT project (CGL2013-48424-C2-1-R) with Spanish MINECO (Ministerio de Economia y Competitividad) and European FEDER funds at the early stages. PM-G has been also supported by a FPI grant from the PhD Training Program (BES-2014-070490) of the former MINECO.Marcos-García, P.; Pulido-Velazquez, M.; Sanchis Ibor, C.; García Molla, M.; Ortega-Reig, M.; Garcia-Prats, A.; Girard-Martin, CDP. (2023). From local knowledge to decision making in climate change adaptation at basin scale. Application to the Jucar River Basin, Spain. Climatic Change. 176(4):1-23. https://doi.org/10.1007/s10584-023-03501-8123176
Irrigation Post-Modernization. Farmers Envisioning Irrigation Policy in the Region of Valencia (Spain)
[EN] During the last three decades, like many other Mediterranean states, Spain has intensively promoted the modernization of irrigation, focusing mainly on the introduction of pressurized irrigation systems. Following 30 years of investment, a shift in irrigation policies is needed to solve some of the deficiencies in this modernization process and to incorporate new measures to cope with upcoming challenges generated by international markets, climate change and other social and economic processes. This paper describes and analyses the results of participatory research carried out with the water user associations in the autonomous region of Valencia, in order to define post-modernization irrigation policies. A survey and 24 local workshops involving 304 water user associations were conducted during the irrigation season of 2018 in order to form an assessment of the sector and design new irrigation policies. The results show that after 30 years of important investment, the obsolescence of the infrastructure has become the current main priority, making farmers dependent on public subsidies. New necessities have also emerged, such as renewable energies and nonconventional water resources, which farmers consider indispensable in order to reduce operating costs and guarantee water supply.This work has been developed under the framework of the research agreement "Estudio para la modernizacion del regadio en la Comunidad Valenciana", between the Universitat Politecnica de Valencia and the Generalitat Valenciana, and conducted as part of the research project "Design and evaluation of strategies to adapt to global climate change in Mediterranean watersheds by using irrigation water intensively (ADAPTAMED)" (RTI2018-101483-B-I00), funded by the Ministerio de Economia y Competitividad (MINECO) of Spain and with EU FEDER funds.Sanchis Ibor, C.; Ortega-Reig, M.; Guillem-Garcia, A.; Carricondo, JM.; Manzano Juarez, J.; García Molla, M.; Royuela, A. (2021). Irrigation Post-Modernization. Farmers Envisioning Irrigation Policy in the Region of Valencia (Spain). 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International Journal of the Commons, 9(1), 129. doi:10.18352/ijc.539Ortega-Reig, M., Sanchis-Ibor, C., Palau-Salvador, G., García-Mollá, M., & Avellá-Reus, L. (2017). Institutional and management implications of drip irrigation introduction in collective irrigation systems in Spain. Agricultural Water Management, 187, 164-172. doi:10.1016/j.agwat.2017.03.009García-Mollá, M., Ortega-Reig, M., Boelens, R., & Sanchis-Ibor, C. (2020). Hybridizing the commons. Privatizing and outsourcing collective irrigation management after technological change in Spain. World Development, 132, 104983. doi:10.1016/j.worlddev.2020.104983Lecina, S., Isidoro, D., Playán, E., & Aragüés, R. (2010). Irrigation Modernization in Spain: Effects on Water Quantity and Quality—A Conceptual Approach. International Journal of Water Resources Development, 26(2), 265-282. doi:10.1080/07900621003655734Berbel, J., & Mateos, L. (2014). Does investment in irrigation technology necessarily generate rebound effects? A simulation analysis based on an agro-economic model. Agricultural Systems, 128, 25-34. doi:10.1016/j.agsy.2014.04.002Berbel, J., Gutiérrez-Martín, C., Rodríguez-Díaz, J. A., Camacho, E., & Montesinos, P. (2014). Literature Review on Rebound Effect of Water Saving Measures and Analysis of a Spanish Case Study. Water Resources Management, 29(3), 663-678. doi:10.1007/s11269-014-0839-0Berbel, J., Gutiérrez-Martín, C., & Expósito, A. (2018). Impacts of irrigation efficiency improvement on water use, water consumption and response to water price at field level. Agricultural Water Management, 203, 423-429. doi:10.1016/j.agwat.2018.02.026Molle, F., & Tanouti, O. (2017). Squaring the circle: Agricultural intensification vs. water conservation in Morocco. Agricultural Water Management, 192, 170-179. doi:10.1016/j.agwat.2017.07.009Pérez-Blanco, C. D., Hrast-Essenfelder, A., & Perry, C. (2020). Irrigation Technology and Water Conservation: A Review of the Theory and Evidence. Review of Environmental Economics and Policy, 14(2), 216-239. doi:10.1093/reep/reaa004Rodríguez-Díaz, J. A., Pérez-Urrestarazu, L., Camacho-Poyato, E., & Montesinos, P. (2011). The paradox of irrigation scheme modernization: more efficient water use linked to higher energy demand. Spanish Journal of Agricultural Research, 9(4), 1000. doi:10.5424/sjar/20110904-492-10Rocamora, C., Vera, J., & Abadía, R. (2012). Strategy for Efficient Energy Management to solve energy problems in modernized irrigation: analysis of the Spanish case. Irrigation Science, 31(5), 1139-1158. doi:10.1007/s00271-012-0394-5Espinosa-Tasón, J., Berbel, J., & Gutiérrez-Martín, C. (2020). Energized water: Evolution of water-energy nexus in the Spanish irrigated agriculture, 1950–2017. Agricultural Water Management, 233, 106073. doi:10.1016/j.agwat.2020.106073Lopez-Gunn, E., Zorrilla, P., Prieto, F., & Llamas, M. R. (2012). Lost in translation? Water efficiency in Spanish agriculture. 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Q., Williams, J., Perry, C. J., Molle, F., Ringler, C., Steduto, P., … Allen, R. G. (2018). The paradox of irrigation efficiency. Science, 361(6404), 748-750. doi:10.1126/science.aat931
Reaching the limits of water resources mobilisation: Irrigation development in the Segura river basin, Spain
THIS ARTICLE IS DISTRIBUTED UNDER THE TERMS OF THE CREATIVE COMMONS ATTRIBUTION-NONCOMMERCIAL-SHAREALIKE LICENSE WHICH PERMITS ANY
NON COMMERCIAL USE, DISTRIBUTION, AND REPRODUCTION IN ANY MEDIUM, PROVIDED THE ORIGINAL AUTHOR(S) AND SOURCE ARE CREDITED.The aim of this paper is to analyse the policy of water resources development implemented in the
semiarid watershed of the Segura river during the last century, consisting of irrigation development promotion by
means of the provision of new resources. The way in which this policy was implemented generated important
conflicts among users, severely damaged riverine ecosystems and, paradoxically, created new water demands,
perpetuating an outdated model of management.Sanchis Ibor, C.; García Molla, M.; Avella Reus, LF.; Carles Genoves, J. (2011). Reaching the limits of water resources mobilisation: Irrigation development in the Segura river basin, Spain. Water Alternatives. 4(3):259-278. http://hdl.handle.net/10251/60080S2592784
Improving the Performance ofWater Policies: Evidence from Drought in Spain
[EN] Water scarcity is a critical environmental issue worldwide, especially in arid and semiarid
regions. In those regions, climate change projections suggest further reductions in freshwater supplies
and increases of the recurrence, longevity and intensity of drought events. At present, one important
question for policy debate is the identification of water policies that could address the mounting
water scarcity problems. Suitable policies should improve economic efficiency, achieve environmental
sustainability, and meet equity needs. This paper develops and applies an integrated hydro-economic
model that links hydrological, economic and environmental elements to such issues. The model is
used to conduct a direct comparison of water markets, water pricing and institutional cooperation,
based on their economic, environmental and equity outcomes. The analysis is performed in the
Jucar Basin of Spain, which is a good natural experiment for studying water scarcity and climate
change policies. Results indicate that both institutional and water market policies are high performing
instruments to limit the economic damage costs of droughts, achieving almost the same social benefits.
However, the environmental effects of water markets are worrying. Another important finding is
that water pricing is a poor policy option not only in terms of private and environmental benefits but
also in terms of equity.
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ID1 and ID4 Are Biomarkers of Tumor Aggressiveness and Poor Outcome in Immunophenotypes of Breast Cancer
Inhibitor of differentiation (ID) proteins are a family of transcription factors that contribute to maintaining proliferation during embryogenesis as they avoid cell differentiation. Afterward, their expression is mainly silenced, but their reactivation and contribution to tumor development have been suggested. In breast cancer (BC), the overexpression of ID1 has been previously described. However, whether the remaining ID genes have a specific role in this neoplasia is still unclear. We studied the mRNA expression of all ID genes by q RT-PCR in BC cell lines and 307 breast carcinomas, including all BC subtypes. Our results showed that ID genes are highly expressed in all cell lines tested. However, ID4 presented higher expression in BC cell lines compared to a healthy breast epithelium cell line. In accordance, ID1 and ID4 were predominantly overexpressed in Triple-Negative and HER2-enriched samples. Moreover, high levels of both genes were associated with larger tumor size, histological grade 3, necrosis and vascular invasion, and poorer patients’ outcomes. In conclusion, ID1 and ID4 may act as biomarkers of tumor aggressiveness and worse prognosis in breast cancer, and they could be used as potential targets for new treatments discover.This research was funded by the Alicante Institute for Health and Biomedical Research (ISABIAL) (UGP 16-149 and UGP 180184) and Navarro-Tripodi Foundation (BOLA00150). M.G.E. was supported by fellowships issued by the Valencian Government of Spain (GVA) and the European Social Fund (ACIF/2016/004)