Browsing by Author "Dextre, Rosa María"

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    La necesidad de una perspectiva interdisciplinaria para la gestión de los servicios hídricos en la cuenca del río Santa, Perú
    (Instituto Geofísico del Perú, 2022-09) Dextre, Rosa María
    En los Andes peruanos, diversos factores hidroclimáticos (p. ej., aquellos producidos por el fenómeno El Niño) y los cambios de uso del suelo están afectando la capacidad de los ecosistemas de la cordillera Blanca para proporcionar servicios hídricos, en términos de calidad y cantidad, a los principales usuarios de la cuenca del río Santa. En este artículo se presentan los principales resultados de una investigación desarrollada en el marco del proyecto Eros-IsoGlas para analizar las interacciones socio-ecológicas que afectan y se ven afectadas por la implementación de un MERESE hídrico en la cuenca alta del río Santa. Utilizando el modelo conceptual del metabolismo hídrico, un enfoque interdisciplinario para el análisis de las múltiples dimensiones del agua, se encontró que, en el intento de implementar un modo de gestión de los servicios hídricos como los MERESE que siguen una lógica de mercado, se podría dar lugar al diseño de un mecanismo en el que no todas las partes interesadas se beneficien por igual.
    Palabras clave:Servicios hídricosServicios ecosistémicosGestión de recursos hídricos
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    Payment for ecosystem services in Peru: Assessing the socio-ecological dimension of water services in the upper Santa River basin
    (Elsevier, 2022-08) Dextre, Rosa María; Eschenhagen, María Luisa; Camacho Hernández, Mirtha; Rangecroft, Sally; Clason, Caroline; Couldrick, Laurence; Morera Julca, Sergio Byron
    Increasing pressures on ecosystems in the Latin American region, as well as the adoption of multilateral conservation commitments, have led to the implementation of instruments that are economic in nature but oriented towards the recovery, conservation, and functioning of ecosystems such as Payment for Ecosystem Services (PES). In the Peruvian Andes, hydro-climatic factors and land-use changes are affecting the capacity of the ecosystems of the glaciated Cordillera Blanca to provide water services, in terms of both quality and quantity, to the main users of the Santa River basin. Thus, this study analyses how the socio-ecological interactions affect, and are affected by, the planned introduction of water-related PES in the Quillcay sub-basin, the most populated sub-basins along the Santa River basin. We use a conceptual model based on the current evolution of the water metabolism approach to integrate into a common language of analysis the multiple dimensions of water: water as an ecological fund, as a service, and as a political asset. To explore the interface of these three domains of analysis we rely on a mixed-method data collection: primary data collection through a stakeholder survey and interviews and a review of information from secondary sources. The result of our case study shows that both the ecological dimension and the social dimension affect on the PES project and vice versa. These complex interactions could result in the design of a mechanism in which not all stakeholders benefit equally. This raises the need to recognise the multidimensional nature of water in the design and implementation of policies, and the importance of identifying processes and barriers which affect the success of these policies without making invisible the direct effect they also have on social-ecological systems.
    Palabras clave:Payment for ecosystem servicesWater services degradationWater-human interactions