Time series of peatland hydrology (water table depth measured with a U20-001-04 water level logger (Hobo, Onset, USA) [2018] and a a U20l-04 water level logger (Hobo, Onset, USA) [2019]), stream hydrology (discharge measured with a ultrasonic distance sensor (SR50, Campbell, USA) [from June 2018 to May 2019] and a water-level logger (U201-04, Hobo, Onset, USA) [from June 2019 to May 2020]), and stream biogeochemistry (water temperature, pH, specific conductivity, dissolved oxygen saturation and dissolved organic carbon measured with a EXO2 multiparameter probe (YSI, USA)) and precipitations at daily intervals. The stream hydrology and biogeochemistry were measured in the stream at the outlet of the of the headwater catchment. Water table depth and precipitation were measured within the watershed.