We created the dataset for our research on the ecohydrogeochemistry of the Slikken van Flakkee, a former tidal wetland in the Netherlands. The data consists of plant species (monitored at PQs in 1972-2016), and porewater and soil compositions (at a selection of PQs in 2016 and all PQs in 2017). We quantified the occurring geochemical processes with the geochemical data, and we quantified the interrelations with all data. The applied ecological and geochemical methods are described in the article.

The README.txt file gives an overview of all uploaded files: - Data files: Containing all processed data (in xlsx and csv); - Belonging codebooks: Containing lists of all variables, their description and unit/levels (in xlsx and csv); - R-scripts: Containing scripts for the final CCA; - Derivated data files for statistical analysis (only in xlsx); - Belonging codebooks: Containing lists of all variables, their description and unit/levels (in xlsx and csv). PQs' coordinates are withheld for protection but are available upon reasonable request. Please contact the corresponding author for additional guidance if needed.