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Proceedings

Eliminación de infraestructuras obsoletas

×* There is no translation available.* La Sierra de Guadarrama ha sido intensamente habitada desde hace mucho tiempo. Algunos de los restos que nos quedan de la actividad humana son patrimonio cultural y reflejan una forma diferente de vivir y de relacionarse con el medio y deben de ser preservados porque seguro que algo nos queda por aprender de dichos restos. Otros sin embargo son heridas abiertas por un uso abusivo del monte o huellas…

Adecuación de los puertos de montaña del Parque Nacional

×* There is no translation available.* La declaración como parque nacional de la Sierra de Guadarrama la convierte en un destino turístico de naturaleza de importancia internacional. Esta situación enorgullece, pero a la vez carga de responsabilidad a las administraciones gestoras porque, aunque son muchos los valores naturales que han hecho merecedora a la sierra de la declaración como parque nacional, también son algunos los impactos sobre el medio a corregir. Los puertos de montaña…

Selvicultura de conservación

×* There is no translation available.* Parte de las masas arboladas del Parque Nacional de la Sierra de Guadarrama tienen su origen en repoblaciones forestales realizadas en diferentes momentos del siglo XX. La Ley 7/2013 de declaración del Parque Nacional de la Sierra de Guadarrama en su artículo 3 las considera un impacto ambiental e insta para tomar medidas de corrección a través de su naturalización. Esta naturalización pasa por: Cambiar la estructura de edades…

Control of impacts due to public use

The public use is irretrievably associated with some negative impact on the natural environment, which is more or less serious depending on the number of visitors, the distribution area and the time of the year. It is therefore essential to carry out a follow-up to the Public Use. Almost all impacts are caused by an excessive number of visitors practicing their activity in areas that do not support so much use. In most cases, it…

Invasive species – Arctic char (Salvelinus fontinalis) eradication

One of the greatest environmental challenges today is the proliferation of invasive species, responsible for a great biodiversity loss throughout the world. Some years ago, in the Sierra de Guadarrama aquatic ecosystems has been located a population of feral American Mink (Neovison vison), an invasive specie that has colonized many of the Spanish rivers. In the past few years has also been detected the American signal crayfish –“Pacifastacus leniusculus”- in the lower Lozoya River areas.…

Ecological restoration of the Peñalara Lake

At the beginning of last century nineties, the Peñalara Lake had a deplorable state of conservation. The area accumulated garbage, the lake suffered recurrent eutrophication episodes and the banks were tremendously eroded. In addition, an exotic fish specie, the Arctic char, had been introduced and caused the disappearance of many aquatic species living in this lake. All these environmental problems were the result of a disproportionate and inappropriate use of this enclave, initiated from the…

Elimination of the Valcotos alpine ski resort

The complete dismantling and ecological restoration of an alpine ski resort (VALCOTOS), is one of the most noteworthy actions carried out in terms of conservation. From the last century sixties years emerges a different approach to the use of the mountain, based on great resorts for the practice of alpine skiing. The making in 1969 of the Valcotos ski resort, caused the destruction or alteration of valuable ecosystems and unique formations having glacial origin, in…

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