Abstract
The quantification of stems (under- and overbark), foliage and fine roots in 14-year-old stands of European beech and Norway spruce grown on the same site were evaluated. Therefore, 60 trees of each species were sampled, dry masses of stems and foliage were established and expressed by allometric equations with stem diameter as an independent variable. The spruce allocated a much larger portion of biomass into the foliage than beech. The equations on a tree level were constructed also for specific leaf area and one-sided projected leaf area. Moreover, the quantity and morphological characteristics of fine roots in both stands were surveyed through soil coring. While standing stocks of fine roots were similar in the stands of both tree species, significant interspecies differences occurred in morphological properties of roots. Growth efficiency, expressing annual stem production on a variety of foliage and fine root parameters was calculated. The largest differences, specifically fivefold in favour of spruce, were found in growth efficiency based on a number of root tips.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗
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Claims 4
Claim · model-written summary
Spruce allocated a much larger fraction of biomass to foliage than beech.
PiceaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spruce allocated a much larger portion of biomass into the foliage than beech”
Claim · model-written summary
Fine root standing stocks were similar in beech and spruce stands.
Verbatim
e0“standing stocks of fine roots were similar in the stands of both tree species”
Claim · model-written summary
Fine root morphological properties differed significantly between beech and spruce.
Verbatim
e0“significant interspecies differences occurred in morphological properties of roots”
e1“standing stocks of fine roots were similar in the stands of both tree species”
Claim · model-written summary
Root-tip-based growth efficiency was fivefold higher in spruce than beech.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The largest differences, specifically fivefold in favour of spruce, were found in growth efficiency based on a number of root tips”