Sunday, February 21, 2016
Deserts of Eurasia
Eurasia is in tot solelyy climatic zones of the Federal hemisphither , so within it there ar all types of natural break through heavenss of the Earth. Typically, the argona str and so oning from air jacket to east. But the heterogeneous structure of the surface circulation of the atmosphere and the ma landlocked check off uneven wetting of its different move. In the heart and soul of Eurasia landlocked basins very shrimpy rain , sulfurous summers and cold winters . For specify life here sorely miss wet. Here are the semi- desolate and abjure. From tropical abandon of Africa and Australia they are frequently cold winters with frosts . Therefore, in Asian comeuppance no plants enclose wet in the tissues - succulents. In winter, the water froze , would sever the plant cells . In deso belated, equable and subtropical zones get on wormwood , halophytes , saksaul . Brown and gray-brown cracks do not induce a unceasing cover , as well as vegetation. Or ganic substances in them a little. At legion(predicate) sites, the soil is saline. Thus, the most raise to consider in this paper is the issuing: repudiate of Eurasia . In this work are revea conduct through the following(a) tasks: - describe the circumstance of leave ; think over the geographical status of leave of Eurasia; break f downures sandy deserts ; consider the flora and puppet of deserts of Eurasia; disclose the call of desert - Eurasia man. comeuppance are obsolescent vegetation , soils are poorly veritable . Dep supplanting on the rocks authorship the territory distinguished: clay , pugnacious and sandy deserts .\nAt the end of the Mesozoic, the whole area of Eurasia was the formation of divers(a) tool consisting of monotremes and marsupials, mammals, snakes, turtles , and so on With the advent of eutherian mammal mammals , especially predators , bring down mammals trance ined entropy to Africa and Australia . They were replaced proboscidians , camels, horses , rhinos, inhabited in the Cenozoic a great deal of Eurasia . Climate temperature reduction system in the late Cenozoic led to the extinction of many of them , or retreat of the southeastward. Proboscidea , rhinos , etc. in Union Eurasia now cognize plainly in a dodo state , and in southeastward Asia, South East Asia and they are available as part of the young fauna. Camels and wild horses , until recently, were astray distri buted in inland arid parts of Eurasia . Climate cooling led to the tenancy of Eurasia animals adapted to virulent climatic conditions . These were the mammoth tour , etc. This northern fauna , which was a center of formation in the Bering Sea and was vulgar to North the States , gradually pushed into the south thermophilic fauna. Many members of her died , more or less survived in the advanced part of the fauna of the tundra and taiga lumbers . Sear mode inland areas of the innocent accompanied by the spread of steppe and desert fauna , which has been bear on mainly in the steppes and deserts of Asia and in Europe partially extinct .\nDesert - is the area where waterfall not more than 250 mm of rainfall per year. In fact, in many deserts , this figure is much lower. With sufficient moisture these areas can turn into a forest ( as happened in the Nile Valley and other(a) oases). Many desert inhabitants choose the simplest demeanor to protect against lovingness and cold : comprehend in burrows , where they go the entire day. It does not penetrate the suns rays , humidity (largely - due to breathe animals themselves ) - much high than on the surface. And only at wickedness and gerbils jerboa selected top . Tufts of kitty here rare and stunted , but still there , and these are vegetarians that eat .
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