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Channel forms recovery in an ephemeral river after gravel mining (Palancia River, Eastern Spain)
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Channel forms recovery in an ephemeral river after gravel mining (Palancia River, Eastern Spain)
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| Sanchis Ibor, Carles; Segura Beltrán, Francisca S.; Almonacid Caballer, Jaime | |||
| Aquest document és un/a article, creat/da en: 2017 | |||
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| During the 1970s, the Palancia River was intensively affected by gravel mining instream. This activity completely destroyed the fluvial forms, devastating the original wandering pattern. At the end of the 1980s, gravel mining ceased and the river started a process of recovery, only altered by several clearing operations. The aim of this work is to describe these processes of change, analyzing the river's morphosedimentary conditions through a GIS analysis of aerial photographs previous to, simultaneous with, and subsequent to the intense gravel mining activity. Results explain the current difficulties of some ephemeral rivers to recover their original forms, because of the sediment and water deficit conditions, the critical role of channel incision and inappropriate actions of river clearing and channelization for flood prevention. | |||
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