Abstract
This paper analyzes the impact of droughts on agricultural water productivity in the period 2004–2012 in the Guadalquivir River Basin using the System of Environmental-Economic Accounting for Water (SEEA-Water). Relevant events in this period include two meteorological droughts (2005 and 2012), the implementation of the Drought Management Plan by the basin's water authority (2006, 2007 and 2008), and the effects of irrigated area modernization (water-saving investment). Results show that SEEA-Water can be used to study the productivity of water and the economic impact of the different droughts. Furthermore, the results reflect the fact that irrigated agriculture (which makes up 65% of the gross value added, or GVA, of the total primary sector) has considerably higher water productivity than rain-fed agriculture. Additionally, this paper separately examines blue water productivity and total water productivity within irrigated agriculture, finding an average productivity of 1.33 EUR/m3 and 0.48 EUR/m3, respectively.
Highlights
Water scarcity is a structural condition in arid regions of the world, which can be further exacerbated by drought events
The objective of this study is to investigate whether the SEEA-Water tables can be used to estimate the economic impact of drought on agricultural water productivity
The conclusion from that paper impacts of droughts, including the report on the ongoing Californian drought [25], which wasis based that the impact of the drought on California’s agricultural sector was less severe than expected in on data from the USDA National Agricultural Statistics Survey
Summary
Water scarcity is a structural condition in arid regions of the world, which can be further exacerbated by drought events. Droughts create periods of water shortage, affecting all economic uses and environmental services of water resources. Hydrological droughts relate to water flows through the hydrological system and usually lag the occurrence of meteorological and agricultural droughts. They can be defined as “periods during which streamflow is inadequate to supply established uses under a given water management system” [2]. The focus lies on precipitation shortages, differences between actual and potential evapotranspiration, soil water deficits, and so forth. Socioeconomic drought is associated with the supply and demand of certain economic goods, and includes elements of meteorological, hydrological, and agricultural droughts
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