92
Dissolved inorganic nitrogen
1.5,-_ _ _ _ _ _ _ _ _ _ _ ....,.._ .....
inner
central
1.2 ------------------------.. -------.. ----- .. ------.. ----------------'? 0.9 ------------------------.. --...... ------.-.... -.. --...... -------- -.-----E
outer
1.2 ----------------------.. ----------.. ---..... -.. -- ... -- --------... ----0.9 ~--------.. -.. ----------.... --.-------. .
0.6 ---------------------.---. --_ .. _-_._- -.----.... ------.. ------------------•
0.3
o
~O-------100~-----2-00~-----3-00~-----400~
days
- - simulation
• measurements
3.3.2 Carbon and Nitrogen Budgets
1. De Vries et al.
Fig. 3.8. Measured and simulated DIN concentrations
in the Venice Lagoon. Inner
Segments 17 and 18; central
segments 11, 13, and 15;
outer segment 6 (cf. Fig.3.3).
Measurements after TECHNITAL (unpuhl. results)
The annual carbon budgets of the three lagoons derived from the model
calculations are given in Fig.3.lO. The budgets are averaged over each
entire lagoon, i.e. including the deeper parts (gullies) without
macrophytes. The individual fluxes are rounded to 5 g C m - 2 year -I,
Only some of the calculated fluxes incorporated in the budgets can be
directly compared to the measurements. Calculated phytoplankton