<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0123-3769</journal-id>
<journal-title><![CDATA[Perspectiva Geográfica]]></journal-title>
<abbrev-journal-title><![CDATA[Perspectiva Geográfica]]></abbrev-journal-title>
<issn>0123-3769</issn>
<publisher>
<publisher-name><![CDATA[Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-37692013000200195</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[La degradación ambiental de la cuenca endorreica Coy Aike, Patagônia Austral, Argentina, y su implicancia económica en establecimientos agropecuarios]]></article-title>
<article-title xml:lang="en"><![CDATA[Environmental degradation in Coy Aike endorheic basin, Austral Patagonia-Argentina, and its economic implication in farms]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diez]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[Mirian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Grima]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de la Patagonia Aus  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de la Patagonia Austral  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de la Patagonia Austral  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2013</year>
</pub-date>
<volume>18</volume>
<numero>2</numero>
<fpage>195</fpage>
<lpage>216</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-37692013000200195&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-37692013000200195&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-37692013000200195&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este trabajo determina los procesos de degradación de la unidad ecológica Matorral de Mata Negra y la disminución de la capacidad de carga producida por la transformación del paisaje en la cuenca endorreica Coy Aike. A partir de la interpretación visual y el análisis de distintos cortes temporales de imágenes satelitales, se caracterizaron cuatro sectores en la cuenca: Laguna, Mata Negra, Vegetación Subarbustiva y Sin Vegetación, siendo los últimos los que presentan mayores evidencias de erosión. La dinámica de la Laguna registró una variación espacial y temporal directamente relacionada con las condiciones meteorológicas, sin embargo, la lengua de erosión asociada no presentó variabilidad. Estas últimas afectan la vegetación natural por la disminución de la disponibilidad de tierras aptas para pastoreo, y ocasionan pérdidas en el valor textil de la lana. El cálculo del costo económico que produce la erosión de los suelos se determinó teniendo en cuenta la receptividad ovina media por hectárea para el área ecológica. En el establecimiento Coy Aikem, las 211 ha de tierra improductiva representan al productor una pérdida económica de 1.925 dólares anuales; no obstante, la gravedad económica estará dada por la cantidad de bajos con potencialidad erosiva, que existan en los establecimientos agropecuarios.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This work determines the degradation processes of the ecological unit of Mata Negra scrub and decreasing load produced by transformation of the landscape in Coy Aike endorheic basin. Visual interpretation using several satellite images, characterizing four sectors in the basin: Lagoon of Mata Negra, Sub scrub vegetation and without vegetation, the last mentioned with the highest erosion evidence. The dynamics of the lagoon showed a spatial and temporal variation directly related to weather conditions, but the lagoon does not contain variability associated with erosion. The last ones affect natural vegetation decreasing availability of land suitable for grazing and losses in the commercial value of the wool for textile. The estimates of economic costs that cause soil erosion was determined taking into account the average per ovine hectare receptivity to the ecological area. In establishing the 211 hectares of Coy Aike unproductive lands must represent an economic loss to the producer of USD 1,925.00 per year, however the economic gravity will coincide with the amount of basin and with the erosive potential that exist in agricultural establishments.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cuenca endorreica]]></kwd>
<kwd lng="es"><![CDATA[degradación]]></kwd>
<kwd lng="es"><![CDATA[paisaje]]></kwd>
<kwd lng="es"><![CDATA[Patagonia]]></kwd>
<kwd lng="es"><![CDATA[Argentina]]></kwd>
<kwd lng="en"><![CDATA[endorheic basin-degradation-landscape-Patagonia Argentina]]></kwd>
</kwd-group>
</article-meta>
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