Shrubland species distribution in acid and basic soils at Grazalema Mountains, South Spain

Anales del Jardín Botánico de Madrid

Juan Bautista Gallego Fernández¹ 

[1] Departamento de Biología Vegetal y Ecología, Universidad de Sevilla

关键词: Betic ranges;    Mediterranean shrubland;    soil pH;   

DOI  :  

学科分类：植物学

来源: Jardin Botanico de Madrid. Anales

【 摘 要 】

The presence of Mediterranean shrubland woody species on acid or basic soils was studied at Grazalema Mountains. Transects were made at 137 sampling sites in the study área and 74 species were recognized.Phlomis purpurea. Cistus albidus. Quercus rotundifoliaandUlex baeticuswere the most frequent species, being present at 70 % of the transects.Pistacia lentiscus. Rubia peregrinaandDaphne gnidiumwere found in 50 % of the transects. From the total species recorded, 67 species were located on basic soils and 55 on acid soils; 19 species (25.7 %) were located only on basic soils and 7 species (9.5 %) only on acid soils; 21 species were significantly more frequent on basic soils, and 10 species on acid soils. The number of species per transect were significantly higher on basic soils (13.2 ± 3.8) than on acid soils (10.3 ± 3.7). Differences in species number are related to a higher number of species displaying a narrow distribution in the basic shrublands as well as due to species loss in the acid shrublands, as a consequence of geographic isolation and human disturbance.

【 授权许可】

Unknown