Data related to Spekkoek research in the Netherlands related to paper:The importance of ‘Spekkoek’ for the hydrological functioning of wetland ecosystems in Pleistocene aeolian sand landscapes: a case from Northwestern Europe.

Data related to research on the hydrological conductivity, granulometry, bulk density and chemical composition of reworked loess (spekkoek) in 3 wetland ecosystems in the Netherlands