SciELO - Scientific Electronic Library Online

 
vol.17 número especialCianamida de hidrógeno incrementa la brotación de pistache (Pistacia vera L.) En regiones áridas con frío insuficiente índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Revista Chapingo serie ciencias forestales y del ambiente

versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828

Resumen

DIAZ-PADILLA, Gabriel et al. Mapping of the aridity index and its population distribution in Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2011, vol.17, n.spe, pp.267-275. ISSN 2007-4018.  http://dx.doi.org/10.5154/r.rchscfa.2010.09.069.

The arid and humid zones of Mexico were delimited using the Aridity Index (AI) adopted by the United Nations Environment Programme (AI = Map / Evt). Mean annual precipitation (Map) and evaporation (Ev) data were obtained from the records of 2,165 and 1,750 SMN (Mexico's weather service) stations, respectively. Potential evapotranspiration (Evt) was calculated using the expression Evt = Ev * 0.8. Both variables (Map and Evt) were interpolated with a resolution of 90 m. and a map algebra was used to obtain the AI, which was classified according to UNEP classes and its population quantified. There were no significant differences between the Evt calculated and the Evt recorded at 30 CLIMWAT-FAO stations (P=0.489). It was found that hyper-arid, arid and semi-arid zones occupy 1, 27 and 35 % of the country's total area and are inhabited by 1, 7 and 33 % of the population, respectively. The dry-subhumid, moist-subhumid and humid zones occupy 11, 16 and 15 % of the country's landbase and are inhabited by 27, 15 and 16 5 % of Mexico's inhabitants. This means that 63 % of the country has some level of dryness and is inhabited by 41 % of the nation's population.

Palabras llave : Desertification; GIS; evapotranspiration; precipitation; arid zones.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons