Towards hydrochemical PUB – stable vs. heterogeneous NO3 and COD signatures across hydrographic structure and size
Résumé
Intensive agriculture is a major disturbing factor for water quality in Brittany, France. Observations of chemical data from 350 catchments over a 15 year period show that the high variability of hydrochemical dynamics between catchments in relation to geographic characteristics and farming practices, decreases with an increase in the catchment size. A stable signature of nitrate and DOC dynamics does emerge for bigger catchments, and was evidenced statistically.
Domaines
Sciences de l'environnement
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