Dynamics of Socioeconomic Exposure, Vulnerability and Impacts of Recent Droughts in Argentina

Geosciences

WalterM. Vargas¹  Veit Blauhut²  Gustavo Naumann³  Jonathan Spinoni³  JürgenV. Vogt³  Paulo Barbosa³ 

[1] Consejo Nacional de Investigaciones Científicas y Técnicas—CONICET, C1428EGA Ciudad Autónoma de Buenos Aires, Argentina;Environmental Hydrological Systems, Albert-Ludwigs-University of Freiburg, 79098 Freiburg im Breisgau, Germany;European Commission, Joint Research Centre, 21027 Ispra, Italy;

关键词: drought;    impacts;    exposure;    vulnerability;    risk;    policy;   

DOI  :  10.3390/geosciences9010039

来源: DOAJ

【 摘 要 】

During the last 20 years, Argentina experienced several extreme and widespread droughts in many different regions, including the core cropland areas. The most devastating recent events were recorded in the years 2006, 2009 and 2011. Reported impacts of the main events induced losses of more than 4 billion U.S. dollars and more than 1 million persons were reported to be directly or indirectly affected. In this paper, we analyse the drought risk in Argentina, taking into account recent information on drought hazard, exposure and vulnerability. Accordingly, we identified the most severe droughts in Argentina during the 2000–2015 period using a combination of drought hazard indicators and exposure layers. Three main events were identified: (1) during spring 2006 droughts peaked in the northeast of Argentina, (2) in 2009 precipitation deficits indicated a drought epicenter in the central Argentinian plains, and (3) in 2011 the northern Patagonia region experienced a combination of natural disasters due to severe drought conditions and a devastating volcanic eruption. Furthermore, we analysed the dynamics of drought exposure for the population and the main economic sectors affected by municipality, i.e., agriculture and livestock production. Assets exposed to droughts have been identified with several records of drought impacts and declarations of farming emergencies. We show that by combining exposure and vulnerability with drought intensity it is feasible to detect the likelihood of regional impacts in different sectors.

【 授权许可】

Unknown