THE ANALYSIS OF SAPONARIA PUMILIO’S GROWTH STRATEGIES IN ALPINE MEADOWS FROM ROMANIA

Autor/autori: Alina ANDRONESCU

Rezumat: Regiunile alpine sunt caracterizate de conditii de mediu particulare cum sunt temperaturile extreme, altitudini mari, cantitatea redusa de nutrimente din sol si perioada scurta de vegetatie. Chiar daca pentru un numar mare de specii, conditiile amintite sunt restrictive, vegetatia alpina contine un numar mare de specii rare, relicte si endemice. Saponaria pumilio (L.) Fenzl. Ex. A. Braun este un relict tertiar care vegeteaza in pajistile alpine din Alpii Estici si Carpatii de Sud. Ca o urmare a adaptarii la mediul alpin, S. pumilio detine caracteristici specifice acestuia: tulpini scurte, flori mari, frunze dispuse dupa un unghi ascutit, formand pernite. In acest context, scopul acestei lucrari consta in prezentarea unor strategii de crestere pe care le dezvolta aceasta specie in ecosistemele in care traieste.

Cuvinte cheie: alpin, planta, ecologie, mediu


Abstract: The alpine regions are characterized by particular environmental conditions such as extreme temperature, high altitude, soils poor in nutrients, short vegetation period. Although for many species these conditions are particularly restrictive, alpine vegetation contains a large number of rare, relict and endemic species. Saponaria pumilio (L.) Fenzl. Ex. A. Braun is a tertiary relict which vegetates in alpine meadows from Eastern Alps and South Carpathian Mountains. As a result of adaptations to alpine environment, S. pumilio has specific characteristics: short stalks, large flowers, leave arrangement in acute angle and it forms cushions. In this context, the purpose of this paper was to reveal some growth strategies that S. pumilio developed in the ecosystems in which it lives.

Keywords: alpine, plant, ecology, environment

 

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