The true desert of the central-west Argentina bioclimatology, geomorphology and vegetation
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| Format: | Artículo científico |
| Sprache: | en |
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Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
2006
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| _version_ | 1876458364363341824 |
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| author | Henry N. Le Houérou |
| author_facet | Henry N. Le Houérou |
| contents | The true desert of the central-west Argentina bioclimatology, geomorphology and vegetation Henry N. Le Houérou C.R. Stasi E. Martinez-Carretero J. C Guevara A. B. Berra O. R. Estevez Biología deserts Arid Land vegetation geomorphology shadow desert In the NW sector of Argentina betweenthe latitudes of Mendoza (32°53´S) andJachal (San Juan) (30°15´ S) extends a NSoriented tectonic valley located betweenthe Pre-Cordillera and the Front Cordilleraof the Andes. This valley is 2,000-5,000m deep with respect to the Pre-Cordilleraand Cordillera summits that borders it onthe East and West; it is ca. 300 km longand 40 km wide on the average. This isactually a perfect case of rain shadowdesert comparable to the well knownCalifornian Death Valley, with an hyperaridclimate. At the lowest point(Calingasta -San Juan-, 1,375 m) thelong-term mean annual rainfall is only 54mm and up to 100-120 mm on the highestpoints (Tambillos -Mendoza-, 2,164 m).From the geomorphic, climatic, floristic and vegetational viewpoints this posttectonicgraben is a true desert void ofperennial vegetation on the pediments,while perennial species are contractedalong the hydraulic network and aroundthe topographic depressions. Vegetationon the pediments is set up in a steppe-likediffuse pattern in the highest parts above1,800 m of elevation, and on a contractedpattern in the lower (1,300-1,800 m asl) 2006 artículo científico 0327-9375 https://www.redalyc.org/articulo.oa?id=42801501 en http://www.redalyc.org/revista.oa?id=428 Multequina application/pdf Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Multequina (Argentina) Num.15 |
| format | Artículo científico |
| id | redalyc_42801501 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) |
| spellingShingle | The true desert of the central-west Argentina bioclimatology, geomorphology and vegetation Henry N. Le Houérou Biología deserts Arid Land vegetation geomorphology shadow desert The true desert of the central-west Argentina bioclimatology, geomorphology and vegetation Henry N. Le Houérou C.R. Stasi E. Martinez-Carretero J. C Guevara A. B. Berra O. R. Estevez Biología deserts Arid Land vegetation geomorphology shadow desert In the NW sector of Argentina betweenthe latitudes of Mendoza (32°53´S) andJachal (San Juan) (30°15´ S) extends a NSoriented tectonic valley located betweenthe Pre-Cordillera and the Front Cordilleraof the Andes. This valley is 2,000-5,000m deep with respect to the Pre-Cordilleraand Cordillera summits that borders it onthe East and West; it is ca. 300 km longand 40 km wide on the average. This isactually a perfect case of rain shadowdesert comparable to the well knownCalifornian Death Valley, with an hyperaridclimate. At the lowest point(Calingasta -San Juan-, 1,375 m) thelong-term mean annual rainfall is only 54mm and up to 100-120 mm on the highestpoints (Tambillos -Mendoza-, 2,164 m).From the geomorphic, climatic, floristic and vegetational viewpoints this posttectonicgraben is a true desert void ofperennial vegetation on the pediments,while perennial species are contractedalong the hydraulic network and aroundthe topographic depressions. Vegetationon the pediments is set up in a steppe-likediffuse pattern in the highest parts above1,800 m of elevation, and on a contractedpattern in the lower (1,300-1,800 m asl) 2006 artículo científico 0327-9375 https://www.redalyc.org/articulo.oa?id=42801501 en http://www.redalyc.org/revista.oa?id=428 Multequina application/pdf Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Multequina (Argentina) Num.15 |
| title | The true desert of the central-west Argentina bioclimatology, geomorphology and vegetation |
| topic | Biología deserts Arid Land vegetation geomorphology shadow desert |
| url | https://www.redalyc.org/articulo.oa?id=42801501 |