Trees

, Volume 10, Issue 2, pp 55–62

Seasonal and annual variations of phosphorus, calcium, potassium and manganese contents in different cross-sections of Picea abies (L.) Karst. needles and Quercus rubra L leaves exposed to elevated CO2

  • Didier Le Thiec
  • Martin Dixon
  • Pascal Loosveldt
  • Jean Pierre Garrec
Original Article

DOI: 10.1007/BF00192184

Cite this article as:
Le Thiec, D., Dixon, M., Loosveldt, P. et al. Trees (1995) 10: 55. doi:10.1007/BF00192184

Abstract

Norway spruce and red oak trees were planted directly into the soil and enclosed in open-top chambers. For 2 years the trees were exposed to both ambient and elevated CO2 concentrations (700 μmol mol-1) and during this time variations in nutrient concentrations were studied. CO2-treated plants had decreases in global leaf concentrations of nitrogen, potassium, calcium and manganese for both species. When different areas of the foliage were analysed however, the response showed much variability between the respective sites and between species. Furthermore the nutrient concentrations changed differently as the plant material aged and this change showed inter-treatment differences. These results show how it may be important to analyse plant material of different ages and at different cell sites when studying nutrient levels.

Key words

Picea abies Quercus rubra Nutrients Carbon dioxide Seasonal variation 

Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Didier Le Thiec
    • 1
  • Martin Dixon
    • 1
  • Pascal Loosveldt
    • 1
  • Jean Pierre Garrec
    • 1
  1. 1.Unité Ecophysiologie Forestière, Equipe Pollution AtmosphériqueINRA, Centre de Recherches Forestières de NancyChampenouxFrance
  2. 2.Université Catholique de Louvai, IRESLouvain-la-NeuveBelgium

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