Plant and Soil

, Volume 168, Issue 1, pp 579–584

Mechanisms for carbon and nutrient release and retention in beech forest gaps

I. Microclimate, water balance and seepage water chemistry
  • J. Bauhus
  • N. Bartsch
The Implication of Climate Change on Forest Research

DOI: 10.1007/BF00029371

Cite this article as:
Bauhus, J. & Bartsch, N. Plant Soil (1995) 168: 579. doi:10.1007/BF00029371

Abstract

Nutrient cycling and water balance in forest gaps has received little attention until now, although gap regeneration is important to natural dynamics of temperate forests. Gaps of 30 m diameter, cut in a mature beech forest, exhibited a distinct change in microclimatic conditions in comparison with the surrounding stand. Soil moisture in gaps remained very high throughout the observation period. Disruption of the N cycle in gaps led to substantial nitrate losses; seepage water nitrate concentrations were 10–18 mg NO3-N L-1. Excess nitrification was a significant cause of soil acidification and aluminium release. The pH in subsoil seepage water decreased by 0.25. Liming in gaps promoted the establishment of a herbaceous vegetation, which functioned as an important nutrient sink, and thus is recommended for tree regeneration in highly acidified forest ecosystems as it increases the resilience of the ecosystem to nutrient losses.

Key words

aluminium release European beech gaps liming nitrate leaching nutrient retention 

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • J. Bauhus
    • 1
  • N. Bartsch
    • 1
  1. 1.Forest Ecosystems Research CentreGöttingen University, Institute of SilvicultureGöttingenGermany
  2. 2.Groupe de Recherche en Ecologie ForestièreUniversité du Québec à MontréalMontréalCanada

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