Plant responses to rising water tables and nutrient management in calcareous dune slacks.

C. Bakker, P.M. van Bodegom, H.J.M. Nelissen, W.H.O. Ernst, R. Aerts

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Plant species of oligotrophic wet dune slacks have dramatically decreased as a result of desiccation and eutrophication. The aim of this study was to test in a field experiment the effects of restoration management in oligotrophic, wet dune slacks (groundwater level rise in combination with topsoil removal or mowing) on abiotic variables and on survival and biomass of four plant species. The effect of groundwater level rise on abiotic variables strongly differed between mown sampling locations and those with topsoil removal. At locations with a mowing treatment, a large rise in water tables led to increased N availability and higher reduced iron concentrations than at other locations. Such effects were absent at locations with recent topsoil removal. No effect of groundwater level rise on P-availability was found. Topsoil removal on average lowered N availability by 13%, P availability by 65% and Fe
Original languageEnglish
Pages (from-to)19-28
JournalPlant Ecology
Volume185
DOIs
Publication statusPublished - 2006

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