期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：2013
卷号：24
期号：3
页码：224-231
DOI：10.1684/sec.2013.0376
出版社：John Libbey Eurotext
摘要：Figures See all figures Authors Émilie Lavie , Gérard Beltrando Université Paris Diderot PRES Sorbonne-Paris-Cité UMR PRODIG (c.c. 7001) 5, rue Thomas-Mann 75205 Paris cedex 13 France Key words: Argentina, hydroclimatic variability, urban canopy, urban irrigation, water management DOI : 10.1684/sec.2013.0376 Page(s) : 224-31 Published in: 2013 The agglomeration of Mendoza (one million inhabitants) is located on the Argentinean piedmont of the Andes. In the heart of the South-American arid diagonal, the development of the city has been made possible by the derivation of an Andean snow-glacier river. Water diverted for the agricultural belt of Mendoza (2,211 km 2) also irrigates an urban canopy, which gives shadow to the streets and squares. A true green frame of trees, it creates a canopy above the roads and sidewalks, which limits the entry of both solar rays and dust while making it possible for the population to move in the shade. This “shade-frame” is a cultural heritage, which supports the social life and the economic development – which would be slowed down six months a year without it. However, in a context where the rise of the temperatures in the Andes has already transformed the regimes of the rivers, the highest flows of which already do not really correspond to the period of greatest need, the oasis and the agglomeration are in a paradoxical situation between a reducing natural supply and rising needs during summer. Industry (particularly oil) is the highest provider of currencies, and has priority in supply over agricultural or the domestic needs of a city still in growth and increasing densification. Under these conditions of water management, one observes that the urban canopy is the principal victim of the restrictions and has started to deteriorate since the closure of certain irrigation channels.
关键词：Argentina; hydroclimatic variability; urban canopy; urban irrigation; water management
