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Study sites
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Thunderforest
OSM Streets
ESRI.WorldImagery
Bach / brook
country
Einzugsgebiet / catchment
Entwässerungsgraben / drainage ditch
Fluss / river
Fluss / river catchment
lake
lake/ mining
lake/ reservoir
Landschaftsraum / landscape
marine
mining lake - gravel pit lake
other
peatland / fen
Quellen und Quellbach / springs and spring brook
reservoir
river
river system
wetland/ peatland/ bog
wetland/ peatland/ fen
Samplingsites
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