How are crops like wheat rice and meat production resulting in an increase in water footprint?
Answers
Answer:
Explanation:
The projected increase in the production and consumption of animal products is likely to put further pressure on the globe’s freshwater resources. The size and characteristics of the water footprint vary across animal types and production systems.
The water footprint of meat from beef cattle (15 400 m 3 /ton as a global average) is much larger than the footprints of meat from sheep (10 400 m 3 /ton), pig (6000 m 3 /ton), goat (5 500 m 3 /ton) or chicken (4 300 m 3 /ton). The global average water footprint of chicken egg is 3 300 m 3 /ton, while the water footprint of cow milk amounts to 1000 m 3 /ton.
Per ton of product, animal products generally have a larger water footprint than crop products. The same is true when we look at the water footprint per calorie. The average water footprint per calorie for beef is twenty times larger than for cereals and starchy roots. When we look at the water requirements for protein, it has been found that the water footprint per gram of protein for milk, eggs and chicken meat is about 1.5 times larger than for pulses. For beef, the water footprint per gram of protein is 6 times larger than for pulses. In the case of fat, butter has a relatively small water footprint per gram of fat, even lower than for oil crops. All other animal products, however, have larger water footprints per gram of fat when compared to oil crops. From a freshwater resource perspective, it is more efficient to obtain calories, protein and fat through crop products than animal products.
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Answer:
Wheat, rice and meat production increases water footprint.
Explanation:
A water footprint represent the extent of water consumed by people in different ways.
Wheat and rice are most widely grown crops in all over the world. Bth the crops require larg amount of rainwater and irrigation water for growth for two main propose to maintain soil moisture and to maintain the water layer in feilds. Hence, more is the standing water in paddy feilds more will be the percolation that will regenarate the groundwater and surface water which result in the increase in water footprint.
Meat production also contricute to increase water footprint which depends on the feed conversion efficiency in which animal producing dairy products such as beed or sheep have greater proportion of feed to convert to meat and imrove grazing system leads to consume less water and so increase water footprint.
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