Salt and nitrate exports from the sprinkler-irrigated Malfarás creek watershed (Ebro river valley, Spain) during 2010

Andrés, R.; Cuchí, José Antonio

doi:10.1007/s12665-014-3174-0

Cited by 11 publications

(6 citation statements)

References 49 publications

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“…To analyze and improve irrigation management in semi-arid areas, the methods that have been used include water balances [13][14][15], irrigation performance studies [16,17] and nitrate and salt balances [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Understanding Drainage Dynamics and Irrigation Management in a Semi-Arid Mediterranean Basin

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Bellvert

Pascual

et al. 2022

Water

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Irrigation is one of the main users of water worldwide and its overuse may affect the natural regimes of water systems. To avoid this, drainage and irrigation management needs to be improved. This study aims to determine the amount of water lost to drainage in a semi-arid Mediterranean irrigated area. Water use, rainfall and drainage were monitored for 12 months (2019–2020) in a 425 ha sub-basin in the Algerri-Balaguer irrigation district (8000 ha, NE Spain). In addition, irrigation requirements were estimated using the single-crop FAO-56 method and a two-source energy balance model (TSEB) was used to estimate actual evapotranspiration in the sub-basin. Water lost to drainage in the sub-basin was estimated as 18% of the total water that entered the perimeter as irrigation and rainfall, which are almost five time higher than theoretical requirements of leaching. Out of the total drainage water, 57% was estimated to be irrigation water and 43% rainwater. The average amount of irrigation water used was 614 mm and irrigation efficiency in the sub-basin was estimated at 80.2% and averaged actual evapotranspiration at 1144 mm. The available margin of improvement is between 19.3% of the present irrigation drainage ratio and the 3.8% estimated with the leaching requirement model.

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Section: Introductionmentioning

confidence: 99%

Understanding Drainage Dynamics and Irrigation Management in a Semi-Arid Mediterranean Basin

Altés

Bellvert

Pascual

et al. 2022

Water

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“…In the central Ebro valley, several of those basin-wide studies have been conducted for Bárdenas irrigation district (including, for instance, the Lerma and Arba basins [3][4][5][6][7][8][9][10]) and for Riegos del Alto Aragón irrigation district, RAAID (which includes the Irrigation Community of LASESA-an acronym formed by the addition of the first two letters of the three villages LAstanosa, SEna and SAriñena where the irrigated district is located [11][12][13], Del Reguero basin [14], Flumen basin [15], Valcuerna gully [16,17] and La Violada, discussed below). In these studies, different values of irrigation efficiency and water drainage chemistry have been reported under diverse irrigation systems.…”

Section: Introductionmentioning

confidence: 99%

Water Balance and Nitrate and Salt Exports from a Saline–Sodic Irrigation District in Castelflorite (Huesca, NE Spain)

2020

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In the current context of climate change, there is growing interest in the optimization of water management in irrigated areas, in semi-arid environments. The design of adequate adaptation and mitigation measures requires specific data at different scales of the water management hierarchy, up to basin level. In this work, the irrigation and drainage system of San Pedro de Castelflorite Irrigation Community (Huesca province, NE Spain), first set up as a flood irrigation system around 1970 and then modernized to sprinkler irrigation around 2008, was studied over two irrigation seasons. The land in this basin, with a surface of 11,450 ha, is affected by severe sodicity problems, which impedes cultivation in large areas. Most of the drainage water discharges into Clamor Vieja ravine, in which the quantity and quality of drainage, using water, salt, and nitrogen balances, were monitored. The water regime was found to be essentially regulated by irrigation. From the water balance, the consumed and the recoverable fractions were estimated at 76% and 23%, respectively, and the depleted beneficial fraction for the irrigated area at 73%. A predominance of salt dissolution processes over precipitation processes was found, with salt exports of approximately 2000 kg ha−1·year−1. The nitrogen exported by the drainage water was 7 kg N·ha−1·year−1. This value, remarkably lower than those reported for nearby basins in the central Ebro valley, can be attributed to the flooding of rice fields and to the low permeability of the soils present in this basin, which would hamper nitrate washing through the soil profile.

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“…El análisis por cuencas es uno de los métodos de realizar estudios de eficacia de regadíos y liberación de sales y nutrientes de un polígono de riego. Por ejemplo, se ha aplicado en la CR LASESA [1, 2,3].…”

Section: Introductionunclassified

Primer balance de agua, sales y nitrógeno en la cuenca de la Clamor Vieja, Castelflorite, Santalecina, Alcolea de Cinca (Huesca). Drenaje de un regadío modernizado

Andrés¹,

Royes²,

Oterino³

2019

Congreso Ibérico De Agroingeniería

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Se localiza en su margen derecha del tramo medio del río Cinca y gestiona una superficie de casi 5.000 ha de los sectores hidráulicos XVII, XVIII, XIX, XX y XXI del Canal del Cinca, acequia de Terreu en la Comunidad General de Riegos del Alto Aragón (Figura 1).El barranco de la Clamor Vieja drena una cuenca de 11.450 ha, de las que aproximadamente el 54% están en regadío. El 92 % de este regadío pertenece a la CRSP y el 8% restante a la Comunidad de Regantes de Santa Cruz. Los retornos de riego provienen esencialmente de la CRSP. En los años 70, esta zona se trasformó en regadío a pie y 30 años después se ha sustituido la red de distribución cambiando las acequias por tuberías a presión. A nivel de parcela también se ha cambiado mayoritariamente a riego por aspersión a excepción de la zona baja de los sectores XVII, XVIII, XIX donde aún predominaba, en el momento del estudio, el riego por superficie.El clima se caracteriza por un período frío de cinco meses, otro cálido de tres: Llueve en primavera y otoño, con un periodo seco de 9 meses, de febrero a mediados de octubre, tormentas aparte. La precipitación media anual son 370 mm. La evapotranspiración de referencia (ET0) 1132 mm al año. La humedad relativa media estuvo entre el 54% de julio, y el 78% de diciembre 2009. La velocidad del viento osciló entre 1,2 y 2m/s.

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Salt and nitrate exports from the sprinkler-irrigated Malfarás creek watershed (Ebro river valley, Spain) during 2010

Cited by 11 publications

References 49 publications

Understanding Drainage Dynamics and Irrigation Management in a Semi-Arid Mediterranean Basin

Understanding Drainage Dynamics and Irrigation Management in a Semi-Arid Mediterranean Basin

Water Balance and Nitrate and Salt Exports from a Saline–Sodic Irrigation District in Castelflorite (Huesca, NE Spain)

Primer balance de agua, sales y nitrógeno en la cuenca de la Clamor Vieja, Castelflorite, Santalecina, Alcolea de Cinca (Huesca). Drenaje de un regadío modernizado

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