Title: Acid soil and acid rain
Subjects: Acid rain, Acid soils, Environmental aspects, Environmental aspects of Acid rain, Nitrogen cycle, Soil acidification, Soil acidity, Soil management, Sulphur cycle, Bodenversauerung, Cycle du soufre, Cycle de l'azote, Saurer Boden, Sulfur cycle, Saurer Regen, Acidification de l'environnement, Sols acides, Schwefelkreislauf, Stickstoffkreislauf, Aspect de l'environnement, Acidité, Aménagement, Pluies acides, Sols, Pluie