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Global warming has already led to decrease(reduction) in a crop of the basic cultures
26.03.2007 08:03 "Agro Perspectiva" (Kyiv) —
The increase in temperature within all XX century has led to falling of productivity of the basic food cultures. To such conclusions send(have come) the American scientists from California K.Fild (Stenford) and D.Lobell (Livermorskaya national laboratory in California). Growth of temperature on 0,5 % conducts to decrease(reduction) in productivity on 3 % — 5 %. Their conclusions are published in one of specialized ecological editions.
As marks(celebrates) in this connection English «Independent», growth srednemirovykh temperatures with 1981 for 2002 has caused decrease(reduction) in a crop of wheat, corn and barley on the whole 40 million t in a year. Annual losses of manufacturers made for the specified period about $5 billion (2,6 billion pounds).
Certainly, in comparison with world(global) gathering cultures it like not especially is a lot of, but cited data, in opinion of scientists, testify to direct wagging change of a climate on an agricultural production. If someone thinks, that global changes of a climate will mention(touch) mankind in the future, this error and a mistake(an error) should be realized already now, authors warn.
Scientists were analysed by data FAO concerning crops of base cultures with 1980 for 2002 For this period temperature on a planet has raised(increased) on 0,7 degrees on Celsius. It was found out, that, despite of growth of application of pesticides, fertilizers, technics(technical equipment), etc., productivity, strangely enough, fell. Thus, it became obvious, that falling of gathering grain is connected with growth of temperatures.
Naturally, such tendency is not evident on a background of growth of total gathering grain. Scientists have analysed productivity of 6 most important cultures — wheats, rice, corn, a soya, barley and sorgo. For cultivation of these cultures it is used more than 40 % of arable lands, on these cultures 55 % of calories of a phytogenesis received by the person and 70 % of received animal forages are necessary.
The American scientists consider(count), that, probably, peasants and farmers still have not adapted to change of a climate and have no at the order appropriate grades of the basic cultures.
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