caa a22 4500 47711248X CHVBK 20180405111613.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00011433 doi (NATIONALLICENCE)springer-10.1007/BF00011433 Radial distribution of Ni in stemwood of Quercus ilex L. trees grown on serpentine and sandy loam (umbric leptosol) soils of NE-Portugal [Elektronische Daten] [C. Nabais, H. Freitas, J. Hagemeyer, S. Breckle] Concentrations of Ni were determined in xylem and phloem of Quercus ilex trees growing on serpentine and sandy loam soils of northeast Portugal. Radial distribution patterns of Ni in stemwood were compared to variations in annual growth increments of the trees. Concentrations of Ni in xylem and phloem were higher in Q. ilex from serpentine soil, when compared with Q. ilex of a sandy loam soil. The radial distributions of Ni showed large variations among the trees, although they all grew in the same area within a short distance from each other. These differences can be caused by small-scale spatial variations in the soil. Therefore, the use of such radial Ni distributions for a retrospective biomonitoring of the Ni pollution of larger areas appears questionable. Kluwer Academic Publishers, 1996 dendrochemistry nationallicence nickel nationallicence Quercus ilex nationallicence serpentine nationallicence tree rings nationallicence Nabais C. Department of Botany, Faculty of Sciences, University of Coimbra, 3000, Coimbra, Portugal aut Freitas H. Department of Botany, Faculty of Sciences, University of Coimbra, 3000, Coimbra, Portugal aut Hagemeyer J. Department of Ecology, Faculty of Biology, University of Bielefeld, D-33615, Bielefeld, Germany aut Breckle S. Department of Ecology, Faculty of Biology, University of Bielefeld, D-33615, Bielefeld, Germany aut Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 181-185 0032-079X 183:2<181 1996 183 11104 https://doi.org/10.1007/BF00011433 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011433 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nabais C. Department of Botany, Faculty of Sciences, University of Coimbra, 3000, Coimbra, Portugal aut NATIONALLICENCE 700 1- Freitas H. Department of Botany, Faculty of Sciences, University of Coimbra, 3000, Coimbra, Portugal aut NATIONALLICENCE 700 1- Hagemeyer J. Department of Ecology, Faculty of Biology, University of Bielefeld, D-33615, Bielefeld, Germany aut NATIONALLICENCE 700 1- Breckle S. Department of Ecology, Faculty of Biology, University of Bielefeld, D-33615, Bielefeld, Germany aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; http://www.wkap.nl 183/2(1996-09-01), 181-185 0032-079X 183:2<181 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer