Environmental consequences of dam construction: a case study from Saudi Arabia

Sallam, Abdelazeem Sh.; Al-Harbi, Abdullah; Usman, Adel R.A.; Hussain, Qaiser; Ok, Yong Sik; Al-Shayaa, Mohammad Shayaa; Al-Wabel, Mohammad I.

doi:10.1007/s12517-018-3387-8

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Earth observation facilities have been proven useful in accurately and efficiently characterising various attributes of surface water resources. These include the moderate-resolution imaging spectroradiometer (MODIS) [10], Landsat [11], SPOT [12], and Worldview [13], Medium Resolution Imaging Spectrometer (MERIS) [14], to mention a few. Work by Gholizadeh et al [7] comprehensively details parameters that have been widely used to estimate water quality using remote sensing techniques.…”

Section: Introductionmentioning

confidence: 99%

Application of Drone Technologies in Surface Water Resources Monitoring and Assessment: A Systematic Review of Progress, Challenges, and Opportunities in the Global South

Sibanda

Mutanga

Chimonyo

et al. 2021

Drones

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Accurate and timely information on surface water quality and quantity is critical for various applications, including irrigation agriculture. In-field water quality and quantity data from unmanned aerial vehicle systems (UAVs) could be useful in closing spatial data gaps through the generation of near-real-time, fine resolution, spatially explicit information required for water resources accounting. This study assessed the progress, opportunities, and challenges in mapping and modelling water quality and quantity using data from UAVs. To achieve this research objective, a systematic review was adopted. The results show modest progress in the utility of UAVs, especially in the global south. This could be attributed, in part, to high costs, a lack of relevant skills, and the regulations associated with drone procurement and operational costs. The progress is further compounded by a general lack of research focusing on UAV application in water resources monitoring and assessment. More importantly, the lack of robust and reliable water quantity and quality data needed to parameterise models remains challenging. However, there are opportunities to advance scientific inquiry for water quality and quantity accounting by integrating UAV data and machine learning.

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Section: Introductionmentioning

confidence: 99%

Application of Drone Technologies in Surface Water Resources Monitoring and Assessment: A Systematic Review of Progress, Challenges, and Opportunities in the Global South

Sibanda

Mutanga

Chimonyo

et al. 2021

Drones

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“…For instance, before the construction of the dam, water flowing from upstream to downstream transported sediments, which often contained significant nutrient content. Hence, the post-dam scenario of reduced water flow due to the reservoir might account for the diminished soil nutrient availability [65]. This decrease in water volume led to a decreased transport of sediments downstream, subsequently contributing to the scarcity of nutrients in the soil [66].…”

Section: Discussionmentioning

confidence: 99%

The Impact of Dam Construction on Downstream Vegetation Area in Dry Areas Using Satellite Remote Sensing: A Case Study

Almalki,

Khaki,

Saco

et al. 2023

Remote Sensing

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The assessment of ecosystem quality and the maintenance of optimal ecosystem function require understanding vegetation area dynamics and their relationship with climate variables. This study aims to detect vegetation area changes downstream of the Hali dam, which was built in 2009, and to understand the influence of the dam as well as climatic variables on the region’s vegetation areas from 2000 to 2020. The case study is located in an arid area with an average rainfall amount from 50 to 100 mm/year. An analysis of seasonal changes in vegetation areas was conducted using the Normalized Difference Vegetation Index (NDVI), and supervised image classification was used to evaluate changes in vegetation areas using Landsat imagery. Pearson correlation and multivariate linear regression were used to assess the response of local vegetation areas to both hydrologic changes due to dam construction and climate variability. The NDVI analysis revealed a considerable vegetation decline after the dam construction in the dry season. This is primarily associated with the impoundment of seasonal water by the dam and the increase in cropland areas due to dam irrigation. A significantly stronger correlation between vegetation changes and precipitation and temperature variations was observed before the dam construction. Furthermore, multivariant linear regression was used to evaluate the variations in equivalent water thickness (EWT), climate data, and NDVI before and after the dam construction. The results suggested that 85 percent of the variability in the mean NDVI was driven by climate variables and EWT before the dam construction. On the other hand, it was found that only 42 percent of the variations in the NDVI were driven by climate variables and EWT from 2010 to 2020 for both dry and wet seasons.

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“…In this country, the traditionally scarce knowledge about hydrogeological systems resulted in a widespread "dam culture" at a national scale and to the construction of numerous hydraulic infrastructures ( more than 1200 large dams ) aimed at achieving an extensive regulation of surface water resources (Ruiz et al, 2016). This management model has traditionally stirred up controversy among dam advocates, who regard them as engines of economic and social development despite their environmental costs (García-López et al, 2018), and their detractors (Sallam et al, 2018;Wu et al, 2019).…”

mentioning

confidence: 99%

Learning from hydrological and hydrogeological problems in civil engineering. Study of reservoirs in Andalusia, Spain

Ruiz-Ortiz

García-López

Vélez-Nicolás

et al. 2021

Engineering Geology

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Environmental consequences of dam construction: a case study from Saudi Arabia

Cited by 5 publications

References 14 publications

Application of Drone Technologies in Surface Water Resources Monitoring and Assessment: A Systematic Review of Progress, Challenges, and Opportunities in the Global South

Application of Drone Technologies in Surface Water Resources Monitoring and Assessment: A Systematic Review of Progress, Challenges, and Opportunities in the Global South

The Impact of Dam Construction on Downstream Vegetation Area in Dry Areas Using Satellite Remote Sensing: A Case Study

Learning from hydrological and hydrogeological problems in civil engineering. Study of reservoirs in Andalusia, Spain

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