Seasonal and spatial variability of the partial pressure of carbon dioxide in the human-impacted Seine River in France.

ABSTRACT: Carbon evasion from rivers is an important component of the global carbon cycle. The intensification of anthropogenic pressures on hydrosystems requires studies of human-impacted rivers to identify and quantify the main drivers of carbon evasion. In 2016 and 2017, four field campaigns were conducted in the Seine River network characterized by an intensively cropped and highly populated basin. We measured partial pressures of carbon dioxide (pCO₂) in streams or rivers draining land under different uses at different seasons. We also computed pCO₂ from an existing data set (pH, water temperature and total alkalinity) going back until 1970. Here we report factors controlling pCO₂ that operate at different time and space scales. In our study, the Seine River was

SUBMITTER: Marescaux A 

PROVIDER: S-EPMC6143529 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature