Structure of a pristine Picea abies forest in northeastern Europe

Structure of a pristine Picea abies forest in northeastern Europe Abstract. The forest structure in a large, relatively homogeneous area of pristine Picea abies taiga in the southern boreal region west of the Ural mountains was studied along four 500‐m long transects. P. abies dominated the forest in association with Abies sibirica and Betula spp. The mean volume of living trees was 216 m3/ha. This value varied among the four transects, from 138 ‐ 252 m3/ha. Mean density of trees (DBH > 1 cm) (and variation over the transects) was 2 064/ha (1670 ‐ 2710). Living trees classified as dying or seriously damaged made up 2.9 (2.5 ‐ 3.5) % of the living tree volume. Betula was an important canopy component and made up 16% of the living tree volume. The number of dead standing trees varied from 195 ‐ 325/ha, corresponding to a volume of 10.8 ‐ 70.7 m3/ha. The density of trees with a broken stem was 90 ‐ 170/ha and their estimated volume 7.6 ‐ 41.3 m3/ha. Standing dead trees and trees with broken stems represented 10.4 and 8.9% of the total standing tree volume (living + dead), respectively. The mean volume of decaying logs on the forest floor was 117 (84.4–156.2) m3/ha, corresponding to 54 (35 ‐ 113) % of the living tree volume. The canopy‐forming trees were present in the understory as abundant saplings and suppressed individuals. The size distribution of the dominant tree species resembled the inverse J‐shape. Generally, the forest was characterized by a high small‐scale structural variation and a larger‐scale relative homogeneity. This pattern is consistent with forest dynamics where the forest consists of a small‐scale mosaic of patches in different stages of recovery following disturbance. Our results suggest that the ecology and dynamics of extensive areas of natural boreal forests can be driven by small‐scale disturbance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Vegetation Science Wiley

Structure of a pristine Picea abies forest in northeastern Europe

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Publisher
Wiley
Copyright
1998 IAVS ‐ the International Association of Vegetation Science
ISSN
1100-9233
eISSN
1654-1103
D.O.I.
10.2307/3237272
Publisher site
See Article on Publisher Site

Abstract

Abstract. The forest structure in a large, relatively homogeneous area of pristine Picea abies taiga in the southern boreal region west of the Ural mountains was studied along four 500‐m long transects. P. abies dominated the forest in association with Abies sibirica and Betula spp. The mean volume of living trees was 216 m3/ha. This value varied among the four transects, from 138 ‐ 252 m3/ha. Mean density of trees (DBH > 1 cm) (and variation over the transects) was 2 064/ha (1670 ‐ 2710). Living trees classified as dying or seriously damaged made up 2.9 (2.5 ‐ 3.5) % of the living tree volume. Betula was an important canopy component and made up 16% of the living tree volume. The number of dead standing trees varied from 195 ‐ 325/ha, corresponding to a volume of 10.8 ‐ 70.7 m3/ha. The density of trees with a broken stem was 90 ‐ 170/ha and their estimated volume 7.6 ‐ 41.3 m3/ha. Standing dead trees and trees with broken stems represented 10.4 and 8.9% of the total standing tree volume (living + dead), respectively. The mean volume of decaying logs on the forest floor was 117 (84.4–156.2) m3/ha, corresponding to 54 (35 ‐ 113) % of the living tree volume. The canopy‐forming trees were present in the understory as abundant saplings and suppressed individuals. The size distribution of the dominant tree species resembled the inverse J‐shape. Generally, the forest was characterized by a high small‐scale structural variation and a larger‐scale relative homogeneity. This pattern is consistent with forest dynamics where the forest consists of a small‐scale mosaic of patches in different stages of recovery following disturbance. Our results suggest that the ecology and dynamics of extensive areas of natural boreal forests can be driven by small‐scale disturbance.

Journal

Journal of Vegetation ScienceWiley

Published: Aug 1, 1998

References

  • The maintenance of species‐richness in plant communities: the importance of the regeneration niche
    Grubb, Grubb
  • Structure and regeneration patterns of a virgin Picea abies forest in northern Sweden
    Hofgaard, Hofgaard
  • Stand dynamics, regeneration patterns and long‐term continuity in boreal old‐growth Picea abies swamp‐forests
    Hörnberg, Hörnberg; Ohlsson, Ohlsson; Zackrisson, Zackrisson
  • Gap structure, disturbance and regeneration in a primeval Picea abies forest
    Liu, Liu; Hytteborn, Hytteborn

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