How Sustainable are Engineered Rivers in Arid Lands?

Schmandt, Jürgen; North, Gerald R.; Ward, George H.

doi:10.13044/j.sdewes.2013.01.0006

Cited by 25 publications

(2 citation statements)

References 21 publications

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“…Population growth and changing living standards force increased water allocation for urban, agricultural and industrial use (Young and Kingsford, 2006;Schmandt et al, 2013). As a result, water resources in drylands tend to be heavily exploited through dams, weirs, canals, and other structures (Davies et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Geomorphic and vegetation changes in a meandering dryland river regulated by a large dam, Sauce Grande River, Argentina

2016

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This paper investigates post-dam geomorphic and vegetation changes in the Sauce Grande River, a meandering dryland river impounded by a large water-conservation dam. As the dam impounds a river section with scarce influence of tributaries, sources for fresh water and sediment downstream are limited. Changes were inspected based on (i) analysis of historical photographs/imagery spanning pre-(1961) and post-dam (1981, 2004) channel conditions for two river segments located above and below the dam, and (ii) field survey of present channel conditions for a set of eight reference reaches along the river segments. Whilst the unregulated river exhibited active lateral migration with consequent adjustments of the channel shape and size, the river section below the dam was characterized by (i) marked planform stability (93 to 97%), and by (ii) vegetation encroachment leading to alternating yet localized contraction of the channel width (up to 30%). The present river displays a moribund, stable channel where (i) redistribution of sediment along the river course no longer occurs and (ii) channel forms constitute a remnant of a fluvial environment created before closing the dam, under conditions of higher energy. In addition to providing new information on the complex geomorphic response of dryland rivers to impoundment, this paper represents the very first geomorphic assessment of the regulated Sauce Grande and therefore provides an important platform to underpin further research assessing the geomorphic state of this highly regulated dryland river.

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Section: Introductionmentioning

confidence: 99%

Geomorphic and vegetation changes in a meandering dryland river regulated by a large dam, Sauce Grande River, Argentina

2016

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“…Despite the contribution of mountainous areas, most of rivers inflows of arid regions are very scarce [MEBARKI 2004;SCHMANDT et al 2013]. Accordingly, water resources must be managed sustainably in order to meet increasing demand and climate change.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of a reservoir in arid region Case study: Babar reservoir, Aurès region, Algeria

Zohra

Dridi²,

Kalla³

2018

Journal of Water and Land Development

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Long term and mid-term reservoir operation involves derivation of rule curves for optimal management of the available resource. The present work deals with reservoir operation in the Aurès arid region. As an example, Babar reservoir is selected to apply the proposed approach which estimates all the water balance terms, especially those which are random as water inflows. For each demand scenario a reservoir operation optimization model using Explicit Stochastic Dynamic Programming (ESDP) is performed, to derive optimal rule curves based on historical operating records (Jan 2002–Dec 2013) and using “Reservoir” R package®. Subsequently, risk analysis is conducted for these different demand scenarios rules by the RRV (reliability, resilience, vulnerability) metrics. Results show the advantage of using the “Reservoir” R package for a rapid and an easy analysis of the performance criteria jointly with the optimization algorithm to Re-operate Reservoir operation.

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Introduction

Sycz¹,

Ribbe²

2021

Towards Water Secure Societies

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How Sustainable are Engineered Rivers in Arid Lands?

Cited by 25 publications

References 21 publications

Geomorphic and vegetation changes in a meandering dryland river regulated by a large dam, Sauce Grande River, Argentina

Geomorphic and vegetation changes in a meandering dryland river regulated by a large dam, Sauce Grande River, Argentina

Performance analysis of a reservoir in arid region Case study: Babar reservoir, Aurès region, Algeria

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