M tropical uscat (desertic) Flashcards

cel m uscat desert de pe glob

1
Q

loc

A

marele desert mexican, sahara, arabiei si iranului - asia, victoria (australia)
marele desert de nisip - australia

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2
Q

clima

A

temp au variatii diurne (ziua= 50°/noaptea 0°)
precip 50-350 mm/an (200mm/an)
vanturi alizee
anot 2 = ploios (rar) + secetos

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3
Q

vegetatia

A

saraca in specii, exista palmieri pitici, plante cu frunze seculare (arbusti cu spini) : cactusi
de a lungul raurilor se form oaze: migdali, cocotieri, vita de vie, bananieri

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4
Q

fauna

A

scorbioni, serpi, camile, vulpea/iepurele desertului, coiot

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5
Q

impact uman

A

oaze si la marginea deserturilor (cei care pasc turmele)
sahelul - zona de trecere intre desertul sahara si mediul tropical umed amenajat atropic cu scopul de a limita extinderea desertului sahara

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