Whim Bog: long-term nitrogen experiments

The Whim experimental bog is a globally unique study of how peatland ecosystems respond to different levels and forms of nitrogen (N) deposition. In operation since 2002, the field manipulation experiment provides a quantified ammonia (NH3) concentration / deposition gradient to an ombrotrophic bog, plus separate wet treatments comparing different levels of oxidized (NaNO3) and reduced (NH4Cl) N deposition. The site also includes treatments with phosphorus and potassium (K2HPO4) at two N doses to compare N effects with and without limitations of other nutrients. 

• See the UKCEH Science Infrastructure catalogue entry