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Ecosistemul Unei Pajisti Alpine

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Radu Neagoe

on 7 November 2013

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Transcript of Ecosistemul Unei Pajisti Alpine

Ecosistemul Unei Pajisti Alpine
Vegetatia
Plantele sunt pitice, multe dintre ele taratoare sau cu frunze dispuse in rozeta la suprafata solului. Frunzele sunt acoperite cu ceara, sau cu perisori protectori. Unele plante au frunze suculente. Datorita luminii puternice, in general, florile sunt viu- colorate.
Fauna
Animalele au deobicei, culor inchise, pentru a capta razele solare.
Pajistile de munte, subalpine si alpine se gasesc la o altitudine de peste 1800m si ajung pana la 2500m. Ele se caracterizeaza printr-un biotop specific cu temperaturi scazute, vanturi puternice si si vietuitoare adaptate la aceste conditii de viata.
Caracteristicile Biotopului


- solurile : podzolice de tip alpin
- clima: veri scurte si ierni lungi, geroase, cu multa zapada
- temperatura medie anuala in jur de 0 grade Celsius
- percipitatii bogate, vanturi puternice, lumina de intensitate mare

Caracteristicile Biocenozei

Plante erbacee: graminee, specii cu flori viu- colorate (cupele, garofita de munte, ghintura, clopoteii, brandusele, floarea de colt)
Arbusti: merisorul de munte, smardarul (arborii lipsesc complet)
Animalele nevertebrate: insecte, melci
Animalele vertebrate: broasca rosie de munte, tritonul, soparla de munte, vipera, vulturul, acvila de munte, capra neagra
Pajistile Alpine
Sfarsit!
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