Section 3
Chapter 2,259

The seasonal variation of 20 elements in 1st and 2nd year needles of Norway spruce, Picea abies (L.) Karst

Wyttenbach, A.; Tobler, L.

Trees: Structure and Function 2(1): 52-64


DOI: 10.1007/bf00196980
Accession: 002258978

The concentrations of 20 elements (including 8 nutritional elements) in spruce needles was monitored by taking samples at 9 different dates in a single year. On each date the current-year and 1-year-old needles were collected at 4 different sites in Switzerland. The needles were washed with an organic solvent to remove surface contamination before analysis by instrumental neutron activation.

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