Biogeochemical cycling and chemical fluxes in a managed northern forested wetland, Michigan, USA

▶ We sampled a regenerating northern forested wetland 14-years following whole-tree harvesting. ▶ We compared biogeochemical cycling and chemical fluxes to non-harvested reference and riparian stands. Main differences were nearly twice the acidity production due to nitrogen immobilization and eight times the acidity consumption due to sulfate reduction in the harvested/regenerated stand. However, both stand types were net acidity sinks and its export did not differ between stands. ▶ Soil in the riparian zone neutralized acidity input from the harvested/regenerated stand and a strong hydro-chemical linkage occurred between the riparian zone and stream. ▶ Whole-tree harvesting had no effects on stream acidification in this managed northern wetland.