By Katrine Hahn, Jens Emborg
Suserup Skov in Denmark is a well-preserved beech-dominated wooded area reserve with continuity in tree conceal no less than again to 4200 BC, indicating it to be an immediate descendent of the primeval forests. regardless of of documented ancient effect from people, Suserup Skov is now more and more characterised by way of traditional disturbance dynamics and is among the most sensible reference components for naturalness within the nemoral a part of northern Europe. This has attracted a number of study tasks focussing on wooded area dynamics, ecology and biodiversity that are summarized during this factor of Ecological Bulletins.This quantity makes a speciality of 3 major areas:1) stand constructions and dynamics2) water and nutrient biking tactics, and3) crops styles and processes.With a compilation of medical stories, distinctive case-studies and experimental works, the amount offers a distinct and in-depth assessment of buildings and approaches in one wooded area reserve. the purpose is to set up a easy reference of technological know-how and perform inside forestry and nature conservation.
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Extra info for Ecological Bulletins, Suserup Skov: Structures and Processes in a Temperate, Deciduous Forest Reserve
For. ' Manage. 185: 225-237. Hannon, G. , Bradshaw, R. and Emborg, J. 2000. 6000 years of forest dynamics in Suserup Skov, a semi-natural Danish woodland. - Global EcoL Biogeogr. 9: 101-114. Heilmann-Clausen,]. et al2007. The history and present conditions ofSuserup Skov - a nemoral deciduous forest reserve in a cultural landscape. - Eco1. Bull. 52: 7-17. Huppe, B. and Rohrig, E. 1996. Ein Mischbestand mit Bergulmen im Kommunal-Forstamt Haina (Hessen). - Forstarchiv. 67: 207-211. Jenssen, M. and Hofmann, G.
It has traditionally been believed that unmanaged, old growth forests characterised by frequent but relatively small disturbances tend to develop negative exponential (reverse-J) distributions at a relatively small scale (Cousens 1974, Oliver and Larson 1990, Peterken 1996), while early successional or severely disturbed forests tend to show normal (bell-shaped) size-distributions (Hough 1932, Veblen 1992, Peterken 1996). On this background, Emborg et al. (1996) concluded that the hump in the size-distribution could be traced back to a major regeneration event in the decades after the forest was fenced against grazing animals in 1807.
To a large extent, the observed changes between developmental phases followed the basic forest cycle. However, many deviations did occur, of which the most important can be summarised as: 1) the majority of the area in the innovation phase in 2002 originated from phases other than degradation. This was caused by storm damage resulting in aggregate tree fall and the massive spread of Dutch elm disease resulting in sudden die back of patches dominated by elm trees; 2) the majority of the area in the early biostatic phase in 2002 originated from phases other than the aggradation phase, due to crown expansion of trees in the early biostatic phase surrounding canopy gaps; and 3) the majority of the area in the aggradation phase in 2002 was recruited from other phases than the innovation phase, because of a well developed understorey that gradually replaced areas with a degraded canopy.
Ecological Bulletins, Suserup Skov: Structures and Processes in a Temperate, Deciduous Forest Reserve by Katrine Hahn, Jens Emborg