%0 Journal Article
%T El clima de la vertiente del Pac赤fico de los Andes Centrales y sus implicaciones geomorfol車gicas El clima de la vertiente del Pac赤fico de los Andes Centrales y sus implicaciones geomorfol車gicas
%A Jose 迆beda Palenque
%A David Palacios Estremera
%J Espacio y Desarrollo
%D 2008
%I Pontificia Universidad Cat車lica del Per迆
%X Climate studies are of main importance to explain the external geodynamics of the Pacific Basin of the Central Andes between 15∼S and 19∼S. This is because the processes by which the relief modeling or morphogenesis develop are controlled by pluviometric variables and phyto stabilization. Moreover, the internal geodynamic of the region is related to the climatic conditions that determine the amounts of sediments aported to the Ocean basin (Kulm et al. 1977), affecting the erosion rate by subduction in the plane of contact between the tectonic plates and the composition of the magazas formed below the Andean erogene. In this paper we analyze the climatic effects in the external geodynamics, within a theoric framework that considers a morphoclimatic system as a set formed by the morphogenetic agents and processes that work the relief modeling in a territory, in function of its bioclimatic characteristics; and a morphoclimatic dominion is the spatial environment where a specific morphoclimatic system develops. First, we present the clima of the Central Andes, the factors that control its mean configuration and its main characteristics with diagrams made from the pluviometric data collected in a series of stations regularly distributed in the region. Second, we differentiate two climatic dominions, one in the Altiplano, related to Amazonia precipitations and the other at the Pacific side, associated to the anticyclonic permanency in the western cordillera. Third, we propose a subdivision of the western fa ade of the cordillera in altitudinal intervals or bioclimatics sections using bioindicators such as the vegetation absence or presence with altitudinal change. Fourth, we give a new division in altitudinal intervals or morphoclimatic zones, using the existence of some geoindicators, such as the endemic geomorphic units of each morphoclimatic zone. El estudio del clima es imprescindible para explicar la geodin芍mica externa en la vertiente del Pac赤fico de los Andes Centrales, entre 15∼S y 19∼S), debido a que los procesos mediante los cuales se desarrolla el modelado del relieve o morfog谷nesis est芍n controlados por las variables termo-pluviom谷tricas y la fito-estabilizaci車n. Adem芍s, la geodin芍mica interna de la regi車n se encuentra igualmente relacionada con las condiciones clim芍ticas, que determinan la cuant赤a del aporte de sedimentos a la fosa oce芍nica (Kulm et al. 1977), afectando a la tasa de erosi車n por subducci車n en el plano de contacto entre las placas y a la composici車n de los magazas que se forman bajo el er車geno andino. En esta ponencia se analizan lo
%K Clima
%K Cambio clim芍tico
%K Andes
%K Procesos bioclim芍ticos
%U http://revistas.pucp.edu.pe/index.php/espacioydesarrollo/article/view/5438