%0 Journal Article
%A Sanz Santos, Miguel Angel
%A Martín Duque, José Francisco
%A Martín Moreno, Cristina
%A Lucía Vela, Ana
%A Nicolau Ibarra, José Manuel
%A Pedraza Gilsanz, Javier de
%A Sánchez Castillo, Lázaro
%A Ruiz López de la Cova, Rafael
%A García, A.
%T Silica sand slope gllying and mining inCentral Spain: erosion processes andgeomorphic reclamation of contour mining
%D 2008
%@ 1746-4498
%U https://hdl.handle.net/20.500.14352/50528
%X A Characterization and quantification of the geomorphic activity of threescenarios of silica sand slops of Central Spain (Segovia and Guadalajaraprovince), is being carried out: (a) silica sand slope gullies; (b) Non reclaimed(abandoned) silica sand mines; (c) abandoned silica sand mines reclaimed with ageomorphic approach. On the silica sand slope gullies, gathered data point atvery high rates of erosion and sedimentation, since runoff and hydric erosionoccurs on them almost instantaneausly after precipitation. When no reclamationis made, silica sand mines evolve like 'natural' gullies, and they show highertares of hydric erosion than them. The erosion of non-reclaimed silica sandmines produces severe on and off sile environmental impacts. Whenreclamations are made based on geomorphic approaches, runoff and soil erosioncan be reduced to the minimum at the pediment areas, whereas the highwalls canmaintain a geomorphic activity which integrates them into the landscape. Theunderstanding of these scenarios is allowing improving new reclamation planson silica sand and kaolin mines of Central Spain,  concerning their topographicaland watershed design, and layout of the reconstructed terrain (waste dumps,surficial deposits, and topsoil). The latter example shows a desirable frameworkof collaboration between mining companies, protected areas managers anduniversities
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