title: Interpreting nitrogen pollution thresholds for sensitive habitats: the importance of concentration versus dose.
abstract: Nitrate and ammonium concentration in wet deposition detrimentally impacted a sensitive pollution indicator species irrespective of the nitrogen dose.
authors.affiliation: Centre for Ecology and Hydrology, Glassel, Banchory, Aberdeenshire AB31 4BY, UK. i.pearce@abdn.ac.uk
authors.forename: I S K
authors.initials: IS
authors.lastname: Pearce
authors.forename: R
authors.initials: R
authors.lastname: Van der Wal
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D000641:Ammonia / Q000032:analysis; D044002:Bryophyta / Q000254:growth & development*; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis*; D009566:Nitrates / Q000032:analysis; D009584:Nitrogen / Q000633:toxicity*; D011891:Rain; D012606:Scotland; D013995:Time; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D000393:Air Pollutants; D004785:Environmental Pollutants; D009566:Nitrates; D014874:Water Pollutants, Chemical; D000641:Ammonia; D009584:Nitrogen