relation between vegetation and soil chemistry gradients in a ground water discharge fen

The soil chemistry of a headwater valley fen is influenced by local ground water discharge that supplies base cations and alkalinity to the fen. An irrigation canal just upward of the fen is the source of this alkalinity. The ecological consequences of this artificial system are studied both on the...

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Veröffentlicht in:Journal of vegetation science 1994-08, Vol.5 (4), p.553-560
Hauptverfasser: Boeye, Dirk, Verheyen, Rudolf F.
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description The soil chemistry of a headwater valley fen is influenced by local ground water discharge that supplies base cations and alkalinity to the fen. An irrigation canal just upward of the fen is the source of this alkalinity. The ecological consequences of this artificial system are studied both on the soil and vegetation level. Rich-fen species of the alliance Caricion davallianae are connected to soil water alkalinity and soil base status. They depend directly on the alkaline ground water discharge. In addition, the local input of this water causes a gradient-rich pattern from poor to rich fen, and it is therefore concluded that it is responsible for the presence of intermediate fen vegetation too. High nutrient levels in the irrigation water have not influenced the fen until now. This case study illustrates the possibility for rich fen restoration after acidification. Irrigation with alkaline water is efficient if excess nutrients can be removed.
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source JSTOR Archive Collection A-Z Listing; Wiley Online Library All Journals
subjects Acid soils
Acidification
Alkalinity
Caricion davallianae
checklists
Chemical bases
ditches
Fen soils
Fens
flora
Groundwater
hydrology
irrigation
Peat soils
plant communities
Rich fen
Soil chemistry
Soil water
spatial distribution
species diversity
Vegetation
title relation between vegetation and soil chemistry gradients in a ground water discharge fen
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