Skip to main content
Journal cover image

Performance of two Picea abies (L.) Karst. stands at different stages of decline : IV. Xylem sap concentrations of magnesium, calcium, potassium and nitrogen.

Publication ,  Journal Article
Osonubi, O; Oren, R; Werk, KS; Schulze, E-D; Heilmeier, H
Published in: Oecologia
October 1988

The nutrient relations (nitrogen, magnesium, calcium, potassium, and manganese) of the xylem sap of spruce trees, Picea abies (L.) Karst., growing at a healthy and a declining site in Northern Bavaria, were followed on a diurnal and seasonal basis between April and October 1985. There were significant differences between the two sites in the xylem sap concentrations of all elements investigated except nitrogen. Nutrient concentrations remained constant diurnally despite changes in transpiration and xylem water potential. However, during periods between precipitation events, concentrations of elements in xylem sap decreased with decreasing xylem water potential. Apparent differences in needle chlorosis of spruce trees at the two sites were associated with consistent differences in nutrient contents of their xylem sap and needles.

Duke Scholars

Published In

Oecologia

DOI

EISSN

1432-1939

ISSN

0029-8549

Publication Date

October 1988

Volume

77

Issue

1

Start / End Page

1 / 6

Related Subject Headings

  • Ecology
  • 3109 Zoology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0602 Ecology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Osonubi, O., Oren, R., Werk, K. S., Schulze, E.-D., & Heilmeier, H. (1988). Performance of two Picea abies (L.) Karst. stands at different stages of decline : IV. Xylem sap concentrations of magnesium, calcium, potassium and nitrogen. Oecologia, 77(1), 1–6. https://doi.org/10.1007/bf00380916
Osonubi, O., R. Oren, K. S. Werk, E. -. D. Schulze, and H. Heilmeier. “Performance of two Picea abies (L.) Karst. stands at different stages of decline : IV. Xylem sap concentrations of magnesium, calcium, potassium and nitrogen.Oecologia 77, no. 1 (October 1988): 1–6. https://doi.org/10.1007/bf00380916.
Journal cover image

Published In

Oecologia

DOI

EISSN

1432-1939

ISSN

0029-8549

Publication Date

October 1988

Volume

77

Issue

1

Start / End Page

1 / 6

Related Subject Headings

  • Ecology
  • 3109 Zoology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0602 Ecology