Vegetatio

, Volume 44, Issue 1, pp 43–49

An indirect gradient analysis of the ecological relationships between ancient and recent reiverine woodlands to the south of Bruges (Flanders, Belgium)

  • Martin Hermy
  • Herman Stieperaere
Article

DOI: 10.1007/BF00119802

Cite this article as:
Hermy, M. & Stieperaere, H. Vegetatio (1981) 44: 43. doi:10.1007/BF00119802

Summary

Riverine forests to the south of Bruges were sampled according to the principles of the Braun-Blanquet approach. Cartographic data allowed a distinction between old (pre-1775) and recent (planted after 1775) woodland. Using a chi-square criterion and/or a Fisher exact probability test, the association of species with the two historical types of woodland was tested. Corylus avellana, Lamium galeobdolon, Primula elatior, Anemone nemorosa, Deschampsia cespitosa and Thamnium alopecurum are confined to ancient woodland. Glechoma hederacea, Prunus padus, Lysimachia nummularia, Ribes rubrum and Lychnis floscuculi have a significant affinity for recent woods.

R-type prineipal components analysis produced an effective ordination of species and relevés. Interpretation of the scatter diagrams was performed using indicator values for the species and some environmental parameters for the relevés. Two major gradients were detected: the first one is the coenocline from wet, basic clay soils towards drier, more acidic, sandy soils. Anthropogenic dynamics, through the general management which effects the micro-climate in the wood, particularly the relative light intensity, has been recognized as the second ecological parameter.

The potential natural vegetation of the valleys is thus determined primarily by soil texture and soil moisture, and secondarily by former land use (and age). It takes at least 200 years before old woodland species start to colonize recent woodland.

We are much indebted to Prof. Dr. P. Van der Veken for his criticism of the manuscipt and to B. Kuziel en G. Dujardin for reviewing the English text.

Keywords

Belgium Forest dynamics Historical ecology Indicator value Potential natural vegetation Principal components analysis Riverine woodland Woodland species 

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Copyright information

© Dr. W. Junk B.V. Publishers 1981

Authors and Affiliations

  • Martin Hermy
    • 1
  • Herman Stieperaere
    • 1
  1. 1.Leerstoel voor Morfologie, Systematick en Ecologie van de PlantenRijksuniversiteit GentGentBelgium

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