Long-term (1930–2010) trends in groundwater levels in Texas: Influences of soils, landcover and water use

Chaudhuri, Sriroop; Ale, Srinivasulu

doi:10.1016/j.scitotenv.2014.05.013

Cited by 61 publications

(34 citation statements)

References 30 publications

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“…This puts the region's irrigated agriculture at risk and leads to saltwater intrusion in aquifers close to the seas (Chaudhuri and Srinivasulu 2014). Low water use efficiency in irrigated agriculture, therefore, exacerbates the water scarcity problem.…”

Section: Water Consumption By Sectormentioning

confidence: 99%

Water scarcity in the Arabian Peninsula and socio-economic implications

Odhiambo

2016

Appl Water Sci

101

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The Arabian Gulf, one of the driest parts of the world, is already passing the water scarcity line as defined by the World Health Organization (WHO). The scarcity of renewable water resources and the growing discrepancy between demand and supply of water is a major challenge. Water scarcity is further worsened by rapidly growing demands due to rapid population growth, unsustainable consumption, climate change and weak management institutions and regulations. Water scarcity erodes the socio-economic sustainability of the communities that depend on the depleting storage. In this paper, an analysis of the water security situation within the Arabian Gulf region and the consequent socio-economic implications is presented.

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Section: Water Consumption By Sectormentioning

confidence: 99%

Water scarcity in the Arabian Peninsula and socio-economic implications

Odhiambo

2016

Appl Water Sci

101

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“…The reduction in ET and surface runoff were key factors for the increased percolation under the switchgrass replacement scenarios. The higher percolation under switchgrass replacement scenarios when compared to cotton indicates the potential for higher groundwater recharge to the underlying Ogallala Aquifer, which is desirable under the current situation of rapidly declining groundwater levels in the THP [11,74]. Soil water storage apparently increased under all switchgrass replacement scenarios.…”

Section: Average Annual Hydrologic Fluxesmentioning

confidence: 96%

“…In this region, groundwater from the Ogallala Aquifer is the major source of irrigation water. However, groundwater levels in this region have been experiencing a continuous decline due to intensive agricultural activities, and much less recharge compared to groundwater withdrawals [11,12]. Using the Hydrologic Unit Model for the United States (HUMUS), Rosenberg et al [13] predicted a further reduction in the recharge to the Ogallala Aquifer under future climate change scenarios because of the increase in evapotranspiration (ET) due to elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Spatial Variability of Biofuel Production Potential and Hydrologic Fluxes of Land Use Change from Cotton (Gossypium hirsutum L.) to Alamo Switchgrass (Panicum virgatum L.) in the Texas High Plains

2016

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Bioenergy crop production has the potential to protect marginal crop lands that generate high surface runoff and produce poor crop yields. Long-term evaluation of the impacts of such land use change on hydrologic fluxes and biofuel production potential is necessary before adopting such strategies on a large scale. In this study, the hydrologic impacts of replacing cotton (Gossypium hirsutum L.) on marginal lands in an intensive agricultural watershed in the Texas High Plains with Alamo switchgrass (Panicum virgatum L.) as a bioenergy crop were evaluated using the Agricultural Policy/ Environmental eXtender (APEX) model. The surface runoff to cotton yield ratio was used as a criterion to identify marginal cotton subareas (homogenous spatial units delineated by APEX) in the study watershed, and three replacement scenarios (low (9 %), medium (33 %), and high (57 %) extents of cotton acreage replaced by switchgrass) were implemented in the scenario analysis. The average (1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)) annual surface runoff decreased by about 84 and 66 %, and the percolation increased by 106 and 57 % in the irrigated and dryland subareas, respectively, when cotton was replaced by switchgrass under the high replacement scenario. Spatial analysis showed that switchgrass was a feasible bioenergy crop for replacing cotton, especially in the western part of the study watershed, due to its higher water use efficiency and better water conservation effects compared to cotton. It is estimated that 193 and 381 million liters of ethanol could be produced from the dryland and irrigated subareas of the study watershed, respectively, under the high replacement scenario.

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“…urban sprawl, industrialization) factors. The latter is a key driver of hydrologic processes and depletion/contamination of water resources in urban agglomerations 23,24 . Negative impacts of urbanization on water resources have been documented from all over the world, including India [25][26][27] .…”

Section: Water Resources Availability and Vulnerabilitymentioning

confidence: 99%