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Isola di Capraia, Tremiti
A. Cano-Ortiz1, S. Del Río González2, C. J. Pinto Gomes3
1Departamento Sostenibilidad Interra. Ingeniería y Recursos SL. Plaza España, 317,5. E-27004, Salamanca, España.
2Departamento de Biodiversidad y Gestión Ambiental (Área de Botánica). Instituto de Ganadería de Montaña (Centro Mixto CSIC-ULE), Facultad de Ciencias Biológicas y Ambientales, Universidad de León, Campus de Vegazana, s/n., E-24071, León, España.
3Departamento de Paisagem, Ambiente e Ordenamento / Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM). Universidade de Évora (Portugal), Rua Romão Ramalho 59, P-7000-671, Évora, Portugal
doi: 10.7338/pls2013502/02
abstract Our soil study of the chromic soils located in the strip of land between Sierra Morena and the Guadalquivir Valley reveals a pH-value close to neutral in 25 samples. The pH-values are close to 5.5 only in the samples taken from the arenosols of the granitic batholith of Los Pedroches. However, it is the percentage of clay, sand and silt that explains the occurrence of grassland dominated by Raphanus raphanistrum, in the company of species with a psammophilous character such as Linaria spartea, Linaria amethystea and Brassica barrelieri. |
keywords grasslands, psammophilous vegetation, subarenicolous vegetation, subnitrophilous vegetation |