Calcification and P dynamics in lake plants

Calcification can support photosynthesis by a close coupling between carbon assimilation and carbonate precipitation using bicarbonate and preventing pH rise. However, the process also leads to massive loss of bicarbonate and P-coprecipitation with calcium carbonate. We suggest that some plants can reuse precipitated P and, thereby, obtain a competitive advantage.

Chemical sampling and continuously monitoring sensors can measure precipitation and dissolution of carbonate on a plant bed and whole-system scale. Analyses of P, Ca and C in plants collected and tested in experiments will tell us how photosynthesis, calcification and P are coupled.


Name Title Phone E-mail
Kaj Sand-Jensen Professor +4535330124 E-mail

Funded by

Carlsberg Foundation logo

PI: Kaj Sand-Jensen


Professor Kaj Sand-Jensen
Freshwater Biology Section
Universitetsparken 4
DK-2100 Copenhagen Ø
Phone: +45 3533 0124

External members

Name Title Affiliation
Theis Kragh Associate professor SDU