The effects of air‐borne nitrogen pollutants on species diversity in natural and semi‐natural European vegetation

Summary The effects of increased atmospheric nitrogen inputs, from both NO y and NH x, on diversity in various semi‐natural and natural ecosystems are reviewed. The severity of these impacts depends on abiotic conditions (e.g. buffering capacity, soil nutrient status and soil factors that influence the nitrification potential and nitrogen immobilization rate) in the particular system. The sensitivity of fresh water ecosystems, wetlands and bogs,...