3.1 Trend analysis
The results of the suspended sediment load trend analysis are summarized
in Table 2 . Annual SSL decreased at most measurement
stations, while increasing trends occasionally occurred, affecting only
individual cases. A decrease in −0.117% — −21.4% per year is
registered at 28 of 33 gauging stations. The average measured recession
is −1.81% per year (stand. dev. 3.89). Positive trends are observed in
all altitude zones. The mean annual increase in suspended sediment load
is 2.95% (stand. dev. 5.68). It varies from 0.259 to 13.1% (seeTable 2 ).
To make our results comparable to the findings of Buchner et al. (2020),
we calculated trends for the same period as their forest and cropland
change (1987-2015). At all gauges combined, we observed a steeper
decline in the contemporary period rather than for the whole available
measuring history. The Fiagdon river is the only exception with a shift
in the trend direction at Tagardon station (Fia-Ta). The average
measured recession in the 1987-2015 period is −11% per year (stand.
dev. 9.6).
### TABLE 2 ###
### FIGURE 3 ###