how much water is used for agriculture in the world

How … Every kilogram of beef produced takes 100,000 liters of water. Farm water, also known as agricultural water, is water committed for use in the production of food and fibre and collecting for further resources. For more details about water withdrawal by region, please see this table. Up to 70 % of the water we take from rivers and groundwater goes into irrigation, about 10% is used in domestic applications and 20% in industry. New efficient irrigation technologies, like drip and sprinkler irrigation, are already showing much promise. Gerbens-Leenes, P.W. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In many drier countries, agricultural water use accounts for more than 90 per cent of total withdrawals. It takes an enormous amount of water to grow crops for animals to eat, clean filthy factory farms, and give animals water to drink. For example, the arid West has some of the highest per capita residential water use because of landscape irrigation. The remaining 39 percent or 43 000 km3 per year is converted to surface runoff (feeding rivers and lakes) and groundwater (feeding aquifers). (Nexus Learning) The United States only uses 5% of its water for industry. There are 330 million acres of land used for agricultural purposes in the United States that produce an abundance of food and other products (2). It comes as no surprise that much of the produce grown in the United States comes from California. Water Use per sector and the Water Balance. Food and agriculture are the largest consumers of water, requiring one hundred times more than we use for personal needs. To learn more about cookies, click here. Aquaponics, a system of farming that uses no soil, also uses far less water than traditional agriculture. Water Use by Industry. As per the Central Water Commission, 85.3% of the total water consumed was for agriculture in the year 2000. The quantities that make up those %’s are: Livestock – 40 million km², or 24.8 million mi.² You really made me think now if I am eating just because I am bored or really hungry.. It’s silly to try saving the environment while insisting that everybody has to eat more meat, and it’s wrecking people’s health. ha ha. Only 20% of the land area is naturally arable. According to the sources from the United Nations (UN), demand for fresh water has reached up to 64 billion cubic meters a year. What Is The World’s Agricultural Land Used For? India does not spend any money in conserving water consumed in agriculture. And this directly affects agricultural water use in California. Globally, agriculture accounts for 92% of the global freshwater footprint; 29% of the water in agriculture is directly or indirectly used for animal production . This share varies markedly, however, and can reach up to 80% in parts of southern Europe, where irrigation of crops accounts for virtually all agricultural water use. The world contains an estimated 1 400 million cubic km of water. One cusec of water flowing for 1 hr is equal to 62.4 lb ×60 × 60=22464 gallons ,101 tons or 1 hectare inch(28.3 7 liter ×60×60= 101952 liters or one acre inche About 56 percent of this amount is evapotranspired by forests and natural landscapes and 5 percent by rainfed agriculture. Agriculture is a major user of ground and surface water in the United States, accounting for approximately 80 percent of the Nation's consumptive water use and over 90 percent in many Western States. And much of the alfalfa grown in California isn’t fed to cattle in the U.S. but shipped to China. Nationally, outdoor water use accounts for 30 percent of household use yet can be much higher in drier parts of the country and in more water-intensive landscapes. Water and agriculture involve two key interrelated issues: Water quality is a measure of the suitability of water for a particular use based on selected physical, chemical, or biological characteristics. The water withdrawal ratios also vary much between regions, going from 91, 7 and 2 percent for agricultural, municipal and industrial water withdrawal respectively in South Asia to 5, 23 and 73 percent respectively in Western Europe. "A Global Assessment of the Water Footprint of Farm Animal Products". Many of the commonly traded agricultural crops grown today are grown in large plots of monocultures and require large amounts of water to produce them. All living creatures need two things to survive: food and water. By 2050, feeding a planet of 9 billion people will require an estimated 50 percent increase in agricultural production and a 15 percent increase in water withdrawals. Really useful slide as it highlights the regional disparity. But only 0.003% of this vast amount, about ð ñ ì ì ì cubic km, are fresh water resources _ that could be used for drinking, hygiene, agriculture and industry. Up to 70 % of the water we take from rivers and groundwater goes into irrigation, about 10% is used in domestic applications and 20% in industry.Currently, about 3600 km 3 of freshwater are withdrawn for human use.

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