4.2.4 Organic Carbon
As for the organic carbon dissolved in water (C), the data were higher
in T1 with averages of 9.76, 10.50 and 8.55 mg 1-l, in
all months of February, October and December respectively, reaching
values of C above 19 mg 1-1 in 2000. In treatment
T2, the average carbon values of 6.25, 5.88 and 4.90 mg
1-l, for the same months, were between 4.9 and 6,2 mg
1-1 while at T1, they were between 8.5 and 10.5 mg
1-1 (Figure 3G). It ensures that the amount of C in
the water after the implementation of the project was lower than the
situation before the implementation of the project, in this case, the
conservationist practices implemented contributed to a smaller amount of
eroded sediments, a result that corroborates with Silva et al. (2005)
that in their study the organic C was the constituent found in bigger
quantity in eroded sediments, emphasizing the need for conservationist
practices that reduce the erosive action of rain, maintaining this
organic fraction in the soil.