Growth Response of Sessile Oak and European Hornbeam to Traditional Coppice-with-Standards Management
2019
Research Highlights: The influence of litter
rakingand livestock
grazingon the development of juvenile sessile oak and European
hornbeam
sproutsas well as on sessile oak standards were studied. Such experiments are very rare, especially in central Europe where these activities have been prohibited for several decades. Little is known on how these ancient management activities affect tree growth. Background and Objectives: Traditional management practices in
coppiceforests such as
grazingand litter
rakinghave been abandoned, but have recently been studied as to whether these practices can substantially contribute to an increase in the species diversity of
coppices. The important question is, however, how these practices influence the growth of
coppice-with-standards. Therefore, this study focused on the effect of
grazing, litter
raking, and their combination on both
sproutsand adult trees in a
coppice-with-standards system one year after harvest. Materials and Methods: The experiment was carried out in the area of the Training Forest Enterprise Masaryk Forest Křtiny, Czech Republic, in a forest stand dominated by sessile oak and European
hornbeam. We analyzed 132 oak polycormons, 132
hornbeampolycormons, and 163 oak standards. Results: The number of
sproutsper stump was affected by the stump size and management practice: (A)
coppice-with-standards, litter
raking, and sheep
grazing; (B)
coppice-with-standards and sheep
grazing; (C)
coppice-with-standards and litter
raking; and (D)
coppice-with-standards), but not by tree species. The number of the
sproutsas well as their height increased with the stump size. In contrast,
grazingresulted in a smaller height of the
sproutswhile thinner
sproutswere found under a combination of
grazingand
raking. When comparing the species, the oak
sproutswere higher and thicker when compared to the
hornbeam
sprouts. The increment of standards increased after stand harvest. This, however, was not the result of
grazingor
raking, but the response to the reduction of tree number and thus of competition between neighboring trees. Conclusions: The results showed that there were rather negative impacts from the implemented traditional management practices on the growth of
sprouts. This may lead to the question of whether ecological diversity resulting from the traditional practices may prevail their negative effect on the growth of the
coppices.
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