Analysis of estuarine soil gradients in salt marshes of the southwestern Netherlands with special reference to the Scheldt estuary
Beeftink, W.G.; Daane, M.C.; van Liere, J.M.; Nieuwenhuize, J. (1977). Analysis of estuarine soil gradients in salt marshes of the southwestern Netherlands with special reference to the Scheldt estuary. Hydrobiologia 52(1): 93-106. http://dx.doi.org/10.1007/BF02658086
Macro-and microgradients in salt-marsh soils of the Scheldt estuary have been studied. The soil parameters used are clay, carbonate, organic matter, pH, nitrogen, potassium and phosphate. The hypothesis that estuarine soil gradients can be reflections of similar aquatic gradients is affirmed for 2 gradients. Soil gradients of upstream increasing organic matter and phosphate contents have been found, relating significantly to corresponding aquatic gradients caused by river pollution. In the same direction gradients of decreasing N and K contents occur. A macrogradient in carbonate content was not found. Some microgradients in clay and carbonate contents are described, and relevant mutual relationships between the soil parameters are characterized.
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