Aeolian Sedimentary Systems of the Canary Islands

Hernández‐Cordero, Antonio I.; Peña‐Alonso, Carolina; Hernández‐Calvento, Luis; Ferrer-Valero, Nicolás; Santana-Cordero, Aarón M.; García‐Romero, Leví; Espino, Emma Pérez‐Chacón

doi:10.1007/978-3-319-93169-2_30

Cited by 8 publications

(8 citation statements)

References 23 publications

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“…With respect to SP10, although it is located in the second row, wind speeds were similar to those in the first row, reaching speeds that exceeded 80% of the input wind speed. In this southern zone of the beach‐foredune environment, the foredune more closely resembles the mounded morphology typical of arid coastal dune systems (Hernández‐Cordero et al, 2019; Hesp et al, 2021; Viera‐Pérez, 2015), instead of the nearly continuous sand ridge of the foredune in the north. While the foredune in the northern area blocks the wind and reduces its speed when entering the system, the naturally fragmented foredune in the southern area allows the wind to enter between the vegetated mounds, transporting sediment to the rear areas of the foredune and forming nebkhas and shadow dunes that enable the foredune to develop in height and width (García‐Romero et al, 2021; Hernández‐Calvento, 2006; Hernández‐Cordero et al, 2012; Viera‐Pérez, 2015).…”

Section: Resultsmentioning

confidence: 54%

Foredune responses to the impact of aggregate extraction in an arid aeolian sedimentary system

Sanromualdo-Collado

Marrero-Rodríguez

García‐Romero

et al. 2022

Earth Surf Processes Landf

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Coastal dunes have long suffered the effects of human interventions that have altered the landscape and operation of these ecosystems. Aggregate extractions have been shown to modify the biogeomorphological processes in aeolian sedimentary systems. The impacts associated to aggregate extraction include the reduction of available sediment and changes to the topography and vegetation patterns, thereby altering the sedimentary dynamics and limiting the recovery capacity of the dunefield. The aim of this article is to analyse the environmental effects produced by historical aggregate extraction in the foredune area of an arid aeolian sedimentary system (El Médano, Tenerife, Spain) through a study of the airflow dynamics and spatial distribution of vegetation, sediment and topographic changes. The methodology was designed with two temporal scales: (i) a long‐term approach which compares historical sources and current ones; (ii) a short‐term approach through experimental data collection to characterize the present functioning. For the latter, a field study was carried out in June 2021, collecting wind speed and direction data at a height of 0.50 m, sediment data (sand sheet thickness, grain size and sorting), and vegetation data (cover and species richness) at 40 sample points. The main results show that when the anthropic stress ceased the foredune did not follow a natural environmental pattern, and that the way it functions at the present time is determined by the changes induced by the aggregate extraction. Changes include alterations to the topography, the creation of a lagoon, and the generation of an aeolian deflation area and flow acceleration zones with the associated sand transport. This research contributes to an understanding of the environmental consequences of aggregate extractions on the foredunes of arid aeolian sedimentary systems and can enable the relevant authorities to make better‐informed decisions that help the management of these ecosystems.

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Section: Resultsmentioning

confidence: 54%

Foredune responses to the impact of aggregate extraction in an arid aeolian sedimentary system

Sanromualdo-Collado

Marrero-Rodríguez

García‐Romero

et al. 2022

Earth Surf Processes Landf

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“…However, they can also be found in arid regions, where continuous foredunes do not build up [38][39][40]. Such is the case in the Canary Islands, where the dry climate conditions present at coastal level only allow the formation of nebkhas, mainly associated with the nanerophytic bush Traganum moquinii [41][42][43][44]. The habitat of this species is basically the coastal dunes, from the backshore to around 200 meters inside the dune field.…”

Section: Methodsmentioning

confidence: 99%

A DIY Low-Cost Wireless Wind Data Acquisition System Used to Study an Arid Coastal Foredune

Domínguez‐Brito

Cabrera‐Gámez

Viera-Pérez

et al. 2020

Sensors

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Environmental studies on coastal dune systems are faced with a considerable cost barrier due to the cost of the instrumentation and sensory equipment required for data collection. These systems play an important role in coastal areas as a protection against erosion and as providers of stability to coastal sedimentary deposits. The DIY (Do-It-Yourself) approach to data acquisition can reduce the cost of these environmental studies. In this paper, a low-cost DIY wireless wind data acquisition system is presented which reduces the cost barrier inherent to these types of studies. The system is deployed for the analysis of the foredune of Maspalomas, an arid dune field situated on the south coast of Gran Canaria (Canary Islands, Spain), for the specific purpose of studying the dynamics of a dune type (tongue dunes), which is typical of this environment. The results obtained can be of interest for the study of these coastal environments at both the local level, for the management of this particular dune field, and at the general level for other similar dune fields around the world.

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“…Mean annual rainfall in the dunefield is less than 100 mm and mean annual temperature is 21 • C, with only slight variation throughout the year (Hernández-Cordero et al, 2019). The effective prevailing winds are NE, ENE and E, favouring sedimentary transport (FMáyer Suárez et al, 2012).…”

Section: Study Areamentioning

confidence: 99%

Spatiotemporal analysis of the impact of artificial beach structures on biogeomorphological processes in an arid beach-dune system

Sanromualdo-Collado

García‐Romero

Peña‐Alonso

et al. 2021

Journal of Environmental Management

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Aeolian Sedimentary Systems of the Canary Islands

Cited by 8 publications

References 23 publications

Foredune responses to the impact of aggregate extraction in an arid aeolian sedimentary system

Foredune responses to the impact of aggregate extraction in an arid aeolian sedimentary system

A DIY Low-Cost Wireless Wind Data Acquisition System Used to Study an Arid Coastal Foredune

Spatiotemporal analysis of the impact of artificial beach structures on biogeomorphological processes in an arid beach-dune system

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