Publications

influence of weather on cork-ring width.	ring-width series of cork from quercus suber l. trees growing at two sites in extremadura (southwestern spain) were analyzed in relation to monthly precipitation and temperature, and to climatic indices combining both variables. ring width of cork showed strong positive correlations with precipitation, especially during the fall and winter. moderately low temperatures were favorable for cork growth, except in winter and during the onset of phellogen activity. we conclude that drought or temperat ...	2000	11303579
transfer of 238u, 230th, 226ra, and 210pb from soils to tree and shrub species in a mediterranean area.	the soil-to-plant transfer factors of natural uranium isotopes ((238)u and (234)u), (230)th, (226)ra, and (210)pb were studied in a disused uranium mine located in the extremadura region in the south-west of spain. the plant samples included trees (quercus ilex, quercus suber, and eucalyptus cameldulensis) and one shrub (cytisus multiflorus). all of them are characteristic of mediterranean environments. the activity concentrations in leaves and fruit were determined for the tree species at diffe ...	2010	20153657