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Mediul tropical cu doua anotimpuri

Mediul tropical cu doua anotimpuri. Factorul determinant al existentei acestui tip de mediu il reprezinta migrarea sezoniera a zonei de convergenta intertropicala spre nord sau spre sud in cursul unui an ,datorita miscarii de revolutie si inclinarii axei terestre.

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Mediul tropical cu doua anotimpuri

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  1. Mediul tropical cu doua anotimpuri

  2. Factorul determinant al existentei acestui tip de mediu il reprezinta migrarea sezoniera a zonei de convergenta intertropicala spre nord sau spre sud in cursul unui an ,datorita miscarii de revolutie si inclinarii axei terestre.

  3. MEDIUL ŞI PEISAJELE DIN REGIUNILE TROPICAL-UMEDE CU DOUĂ ANOTIMPURILocalizare: 5˚-20˚ lat.: America Centrală, E Braziliei, India, indochina, SE Chinei, N Australiei, Africa Centrală.Caracteristicile factorilor de mediu:- sezon cald şi ploios (20˚-25˚C; 1000- 1500 mm precipitaţii);- sezon cald şi secetos (10˚-20˚C, precipitaţii rare, averse);- soluri FeO, AlO, culoare roscata sau violacee;- alterari chimice, alunecari de teren;- forme de relief: pedimente, platouri, inselberguri;

  4. Tipuri de peisaje:- savane – ierburi xerofile si palcuri de arbori; exista savane cu baobabi, acacii, palmieri (Africa), savane cu ierburi inalte (campos – Brazilia, llanos – Venezuela);- paduri tropicale semperviriscente, in vecinatatea padurilor ecuatoriale (2-3 luni seceta); din ele se desprind paduri-galerii;- paduri cu frunze cazatoare, in vecinatatea savanelor;- paduri musonice – India, Asia de SE, America Centrala – santal, teck, abanos; vegetatie densa, inaltime redusa, 30-35 m;- peisaje antropizate: in zone cu exploatari de minereuri, diamante, pe litoral.

  5. Realizat de :Tius Marcela Retegan Daniel Boca Gheorghe Pugna SavetucaProf. coordonator:Dunca Grigore

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