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Environmental

ANA alert for uneven distribution of water resources in the country although resource is abundant

05/06/2012

This article was translated by an automatic translation system, and was therefore not reviewed by people.

 


 




Brasilia - Brazil is in a comfortable situation regarding availability of water resources compared to other countries, according to the National Water Agency (ANA). The document Situation of Water Resources in Brazil in 2012, released in Brasilia, revealed that the volume of water in the country accounts for 12% availability of the planet. But the same document warns that the apparent comfort coexists with the unequal distribution of resources.

The survey showed that over 80% of water availability is concentrated in the Amazon basin. "Brazil has a large reserve of fresh water, but distribution is patchy. In some regions, there is a large water potential, while in other regions you have to water shortages, "said the CEO of the ANA, Vicente Andreu.

The artificial reservoirs are pointed out by technical and strategic elements of the ANA to address these concentrations. "This is one of the main issues we discussed at Rio +20. Regarding the increase in preservation, we want to revisit reservoirs only have negative impacts. Evidently reservoirs have significant environmental and social impacts, but can be effective tools in controlling flooding and water supply, "said Andreu.

For accounts of the sector regulator, Brazil has 3600 meters cubic volume stored in reservoirs, per capita. The number is higher than in several continents. In Europe, for example, the ratio of water per head is stored in the order of 1.4 cubic meters. In Latin America and the Caribbean, is 836 meters cubic per capita.

In 2011, weirs considered important in this respect, in Brazil, such as the Northeast Region of the country, which have the function of accumulating water in wet periods to ensure the resource during droughts, showed increases of 9% in volume compared to 2010 stored . The average stock in the region has remained around 68%. But when coaches evaluate the scenarios in each state, found, for example, that in Bahia, the values are stored below the average for the region, with 42% of the volume.

Agriculture, with irrigated crops remains in the lead consumption of these resources. The ANA study showed that 54% of the withdrawal of water is promoted by farming. According to the technicians of the agency, that portion becomes even more important with the growth of the irrigable area in the country, according to the data, now accounts for 5.4 million hectares (20% more than the targeted area in the agricultural census , 2006).

"What we need is to combine the policies for the expansion of agriculture, especially irrigated crops, occurs in places where the soils and water availability is adequate. There are statistics that productivity in irrigated agriculture, for certain products, increases by four times.
With this you can prevent the spread of agriculture into other areas such as biomes most sensitive and avoid conflicts of water use, "said Andreu.



Source: Online Extra

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This article was translated by an automatic translation system, and was therefore not reviewed by people.

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