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Cost of U.S. regulation Water scarcity around the world – drought, water crisis, the wheat area – Industry Environmental Protection

Regulation of water use costs the United States

water scarcity worldwide HC Environmental Network Since the winter of 2008, the northern wheat areas of severe drought of China. Drought in the scope, duration of time, wheat and other crops have been affected much of the history of rare. Although superficially this drought is not Shanbengdelie such as earthquakes, but directly to food production in China and daily life of people, a threat to the people once again sounded the alarm by the water crisis.

In China, the total water resources on 2800000000000 cubic meters, ranking sixth in the world. However, due to the large population by the action of water per capita world average is only 1 / 4, is the largest country in the world who lack water. In the 20th century, more than 600 cities in China more than 400 existing problems of water shortages, water shortages more serious, more than 110 cities across the country in urban areas is a total of 60 million cubic meters. With population growth and other living standards, China's future will be more severe water crisis.

In fact, the shortage of facing the world water is becoming a widespread problem. Therefore, to solve the problem of water shortage, measures taken in other countries?

Australia: improving the efficiency of water use since 2002, Australia was the country's history has been more affected by drought, so many cities have restrictions on water use. In Melbourne, the government has banned residents their own pool of water injection. In dry weather in Brisbane, residents should be allowed water consumption in outdoor air.

To combat the worst drought on agricultural production in Australia. In 2007, the story of the continuing drought Australia, an area of Central Agricultural little rice production strongly, reaching the lowest since 1927. Australian government clearly recognizes that even the active and committed to adopt the methods and means, is impossible in a short period of time to reverse the situation of water scarcity, the only viable solution means as much as possible to improve the efficiency of water use. To that end, launched a northern Victoria last five years, $ 1.3 million in cost of the plan, the region was for centuries a major renovation of irrigation systems, using computer controlled irrigation channels to significantly reduce waste water resources. So far, the region of wastewater irrigation systems has been reduced by 30%, has had some success.

United States: the cost regulation and control of water

Las Vegas was the most serious waste of water resources throughout the United States one of the cities, urban water use is almost double that of New York and other cities. extravagant use of water leads to Las Vegas, the main source of living water? The decrease in water level of Lake Mead, is now over 360 m in 2000 to 330 meters. Research institutes have predicted, with the intensification of global warming and the growing demand for water in Lake Mead in 2021 is likely to dry completely.

To effectively combat the growing water crisis in Las Vegas in early 2008, local water authorities to increase the price of water in the region, and the size of water users to develop a range of different prices? consume less water consumption water up to 17%, while users more water to overcome the biggest price increases of 30%. Moreover, even was a Las Vegas police on the streets of water, especially in the illegal use of water people control. For example, in accordance with relevant provisions of the day is not allowed to use automatic watering, residents can only water their lands by the spray device can be used instead of the straight red line. Water Police patrol the streets, soon finds the phenomenon of illegal use of information connected to the water will be recorded in place. If the situation is severe, the parties may be punished by a fine of U.S. $ over a thousand.

The evidence in practice adopted a series of positive water conservation and efficient water use in Las Vegas with some improvements. The survey population but since 2002 of the city increased by 300,000, but the current water use in urban areas has decreased, but because the water supply system caused by a leak of less than 5% waste.

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