Current issue: 58(5)
Articles by J. Laurén
Category : Article
Ashed tree samples from sound and decayed Norway spruce (Picea abies (L.) H. Karst.) were studied by means of fast neutron activation analysis, and for comparison, also by X-ray fluorescence analysis. In fast neutron activation analysis, the following elements were detected: (Na), Mg, Al, Si, K, Ca, Mn, Rb, Sr and Ba, and according to the results of the X-ray fluorescence method the elements present in the wood samples were: K, Ca, Mn, Rb, Sr and Ba. A general diminishing was revealed by both methods in most elemental concentrations studied, with exception of K and Rb, when going from a sound tree to a decayed one. The use of the ratio of the amounts of potassium to calcium as an indication of the degree of decay is therefore proposed.
The PDF includes a summary in Finnish.
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Raunemaa,
E-mail:
tr@mm.unknown
- Hautojärvi, E-mail: ah@mm.unknown
- Jartti, E-mail: pj@mm.unknown
- Laurén, E-mail: jl@mm.unknown
- Lindfors, E-mail: vl@mm.unknown
- Räisänen, E-mail: jr@mm.unknown
