[Environmental series, 90: Monitoring of lakes 1998 [Bagsvaerd Soe, Furesoe]]

analyse de l'eau calidad del agua danemark denmark dinamarca environmental impact flora microbiana flore microbienne impact sur l'environnement impacto ambiental lac lagos lakes losses from soil microbial flora nutrientes nutrients organic matter pollution by agriculture pollution de l'eau pollution par l'agriculture substance nutritive water analysis water pollution water quality