Discharge‐based economic valuation of irrigation water: Evidence from the Teesta River, Bangladesh

Mullick, Md. Reaz Akter; Babel, Mukand S.; Perret, Sylvain

doi:10.1002/ird.597

Cited by 16 publications

(10 citation statements)

References 20 publications

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“…Because establishing MB functions for irrigation water flow proved to be a complicated process, we adopted a single measure, average irrigation-season flow, for the sake of simplicity. Thus, the irrigation benefit is calculated once, at the end of the season, when harvesting is done and distributed on a monthly basis over the growing period (Mullick et al, 2011). Developing a monthly benefit function for irrigation water use, especially for a diverse cropping system, becomes quite challenging and could not be accomplished within the scope of this research.…”

Section: Discussionmentioning

confidence: 99%

Marginal benefit based optimal water allocation: case of Teesta River, Bangladesh

2013

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This article describes a hydrologic-economic optimization model for allocating available river flow between competing off- and in-stream demands, based on the marginal benefits (MBs) of sectoral water uses in a segment of the Teesta River in Bangladesh. Irrigation, capture fishery and navigation are the main direct water uses considered. The value of irrigation water was estimated using the residual imputation method. Losses in yield caused by lowered irrigation supply, resulting from reduced river flow, formed the basis for establishing the total and MB functions for off-stream river water use (irrigation). Total and MB functions for in-stream water use (capture fishery, navigation) were developed using field survey data of beneficiaries' income as a function of river flow. Analysis was enhanced by applying AQUARIUS, which allocates water between users to maximize consumer surplus based on MB functions. Model results show that in-stream uses could not compete with off-stream uses in the case of the Teesta, as substantial benefit was obtained from irrigation. Environmental flow to safeguard river health and in-stream use was considered to be a constraint in the optimization, which results in a sizeable reduction in irrigation benefit with a small increase in in-stream benefit. The necessary trade-offs between economic efficiency and environmental protection are depicted, providing insight into a justifiable water allocation strategy for the Teesta. (Résumé d'auteur

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Section: Discussionmentioning

confidence: 99%

Marginal benefit based optimal water allocation: case of Teesta River, Bangladesh

2013

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“…Igualmente el modelo se ha empleado para evaluar la demanda de agua de los cultivos, así como el diseño del plan de riegos mediante la simulación de la reducción del rendimiento potencial 6 (RRP) del cultivo debido al estrés por el déficit de agua (Cavero et al, 2000;Mullick et al, 2011), también se ha usado en estudios regionales con Sistemas de Información Geográfica (SIG) sobre el balance de humedad del suelo, incluyendo información de imágenes de satélite en las áreas de riego en Irán (Jamshid, 2003) y para evaluar la uniformidad en la distribución del agua entre los usuarios al inicio y final de la aplicación de los módulos de riego en el distrito de riego 017, Comarca Lagunera, México (Santamaría et al, 2008), entre otras aplicaciones.…”

Section: Cleves/toro/martínezunclassified

Los balances hídricos agrícolas en modelos de simulación agroclimáticos. Una revisión analítica

Cleves

Toro

Martínez

2016

Rev. Colomb. Cienc. Hortic.

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RESUMENEn este artículo se analiza la aplicabilidad de los modelos agroclimáticos de simulación de cultivos CropWat v 8.0 y AquaCrop bajo la ocurrencia de los eventos ENOS (El Niño-Oscilación del Sur) y de cambio climá-tico. Igualmente se resalta la importancia de estos modelos porque permiten a los agricultores implementar medidas de manejo y ubicación de cultivares teniendo en cuenta las condiciones climáticas para participar desde el contexto territorial en el diseño e implementación de estrategias de mitigación y/o adaptación. De manera complementaria se comparan las diferentes metodologías utilizadas para la determinación de la evapotranspiración de referencia (ET o ) y se describen los atributos, características y aplicabilidad en la ecuación Penman-Monteith. Finalmente se define las variables del balance hídrico agrícola, indicando su aplicabilidad en la conservación o aumento de la productividad en diferentes escenarios. Se concluye que estos modelos son herramientas técnicas fundamentales en la planificación de siembras y de cosechas. ABSTRACTThis article analyzes the applicability of the agroclimatic crop simulation models CropWat v 8.0 and AquaCrop in the occurrence of ENSO (El Niño-Southern oscillation) events and climate change. The importance of these models is significant because they help farmers implement management measures and locate cultivars taking into account climatic conditions, thus allowing their participation, from the territorial context, in the design and implementation of strategies for mitigation and/or adaptation. Different methodologies used for determining the reference evapotranspiration (ET o ) were compared, and the attributes, characteristics and applicability with the Penman-Monteith equation were described. Finally, the variables of the agricultural water balance were determined, along with their applicability regarding the preservation or the increase of productivity in different scenarios. It was concluded that these models are essential technical tools for planning sowing and harvests.

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“…The pre‐barrage water discharge in the Teesta river was 125 cumec in the dry (pre monsoon) season and 271 in lean (post monsoon) season which is now trimmed down to below 40 cumecs in Bangladesh part. Because of the reduced flow, 5,427 villages on the banks of the Teesta river who are dependent on the river for their livelihoods such as crop production and fishing are susceptible to multiple water stress and impair the livelihood situation of the river dependent community in a conspicuous upset (Islam, 2013; Mullick et al., 2010; Prasai & Surie, 2013; The Asia Foundation, 2013). Besides, the frequency and intensity of the climate change impacts such floods, flash floods, riverbank erosion, sand deposition, watercourse change, hailstorms, erratic rainfall, drought, heat and cold waves are increasing in the Teesta basin which drastically hampers the crop production and livelihood activities of the river basin people (Arfanuzzaman et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Upstream downstream divergence and hydro‐socioeconomic distress in South Asia

Arfanuzzaman¹

2020

World Food Policy

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The issue of transboundary river management is highly pertinent to South Asia with conflicts emerging in water resource management and utilization which indeed affect the beneficial uses of downstream states. The paper considers the situation of the Teesta river basin to assess the water unavailability driven agricultural shock, cost of loss and damage of the downstream region, identify the mutual benefits of water collaboration, and suggest potential adaptation options for water unavailability. The study found during 1995–2010, the annual mean discharge in the upper Teesta floodplain was 707 cumec, where the downstream discharge was 140 cumec and during 2005–2010 the downstream region received less than 8% of the mean annual discharge which may be attributed to reduced flow from the upstream region due to the intense operation of dams and barrage. Consequently, the water reliant 5,000 villages and 12 sub‐districts of lower Teesta basin of Bangladesh were found to be experiencing immense hydro‐socioeconomic impairment and food insecurity. The study estimates that in the Rangpur region, total loss and damage of Boro rice production is 15,08,020 metric tons during 2006–2015, and in the Nilphamri total loss and damage is estimated 9,83,054 metric tons during the same period. Here, the total computed economic loss for both the region is $564 million from 2006–15 FY, which remarkably trims down the overall agricultural production and socio‐economic situation in the lower Teesta region of Bangladesh and fuel the hydro‐economic and political tension between the close riparian.

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Discharge‐based economic valuation of irrigation water: Evidence from the Teesta River, Bangladesh

Cited by 16 publications

References 20 publications

Marginal benefit based optimal water allocation: case of Teesta River, Bangladesh

Marginal benefit based optimal water allocation: case of Teesta River, Bangladesh

Los balances hídricos agrícolas en modelos de simulación agroclimáticos. Una revisión analítica

Upstream downstream divergence and hydro‐socioeconomic distress in South Asia

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