6.9 Threat: Pollution

6.9.1 Multiple sources of pollution Likely to be beneficial Divert/replace polluted water source (s) • Characteristic plants: One study in a fen in the Netherlands found that after a nutrient-enriched water source was replaced, along with other interventions to reduce pollution, cover of mosses characteristic of low nutrient levels increased. • Vegetation cover: Two studies in bogs in the UK and Japan reported that after polluting water sources were diverted, sometimes along with other inter..