2011GB004105Rfs01_Supplementary_Figure_1.pdfPDF document266KSupplementary Figure 1, presents box plots depicting median (centre lines), 25th and 75th percentiles (edges of boxes) and extremes (upper and lower whiskers) of the TSS, Total Suspended Solids (a), %OC, Organic Carbon (b), C/N, Carbon and Nitrogen ratio (c), Chl-a, Chlorophyll a (d), POC/Chl-a, Particulate Organic Carbon and Chlorophyll a ratio (e) and 13C, isotopic Carbon (f) parameters grouped by water period in the floodplain. Sample size (N) for each group is reported below the X axis. This figure shows the statistical significance of the temporal variation between water stages using the Kruskal-Wallis nonparametric test (at 95% level of confidence) with Dunn's post-test comparing all water stages using GraphPad Prism version 4.00 for Macintosh Leopard 10.6, GraphPad Software, San Diego California USA, For all the parameters, the seasonal pattern was significant in the floodplain (Supplementary Figure 1). In the case of TSS parameter, all the seasons are statistically different from each other. In the case of %OC and C/Chl-a, only the low period contrasts with other water periods, while in the case of C/N, low water period contrast with rising and high water periods, rising contrasts with falling and falling contrasts with high. Finally 13C high period data contrast with all other water periods.
2011GB004105Rfs02_Supplementary_Figure_2.pdfPDF document11KSupplementary Figure 2, presents the annual water level variation in the Curuai floodplain (black line) and temporal variation in the contributions of the main sources of organic matter (Amazon River organic matter and phytoplankton organic matter) to the Curuai floodplain as calculated using a 13C isotopic model.
2011GB004105Rts01_Supplementary_Table_1.txtplain text document2KSupplementary Table 1, presents the carbon mass balance computed using the hydrological model results obtained for the 2002–2003 water-year and the corresponding carbon (dissolved and particulate) data obtained from the monitoring network installed in the Curuai varzea. Particulate organic carbon (POC) and Dissolved organic carbon (DOC) balances were negative (thus corresponding to TOC exportation from the floodplain) except during December and January for POC and December, January, May and June for DOC. On an annual basis, the total DOC export was 26 ± 2.6 Gg C and POC export was 66 ± 6.6 Gg C.
2011GB004105Rts02_Supplementary_Table_2_1356712008_2.txtplain text document1KSupplementary Table 2, presents the contribution of Curuai floodplain organic carbon (DOC and POC) to the Amazon River, during an annual hydrological cycle.
2011GB004105Rreadme_1356712008_3.txtplain text document5KSupporting Information

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