Author(s): F. Gentile, T. Bisantino & G. Trisorio Liuzzi
In the Puglia region (southern Italy) heavy storms trigger high suspended
sediment transport in water courses, accelerate soil and nutrients loss, and
adversely affect biodiversity.
In addition, high siltation in reservoirs reduces the
water-holding capacity and creates severe problems of water availability for
agriculture, which still plays an important role in the local economy.
In the study
area, suspended load data derive from continuous monitoring in the Carapelle
torrent (2007-2008) and from hand-sampling in the Salsola sub-catchment of the
Candelaro torrent (1970-1984).
Recorded data of total streamflow are also
available for both torrents.
The high temporal resolution data were used to
analyze the sediment transport dynamics and to evaluate the predictive accuracy
of the Annualized AGricultural Non-point Source (AnnAGNPS) pollution model
at the event scale.
The historical data were used to test the reliability of the
model for long-term periods and to compare the performances of medium and
small size watersheds.
soil erosion, sediment transport, AnnAGNPS model, continuous
During the past four decades, different simulation models have been developed
to estimate surface runoff, sediment, nutrient and pollutant transport processes.
The widely used water quality models include ANSWERS, Beasley et al.
CREAMS, Knisel , GLEAMS, Leonard et al.
, AnnAGNPS, Bingner and
Theurer , and SWAT, Arnold et al.
Among these models the Annualized
Agricultural Non-Point Source AnnAGNPS pollution model has a structure that
balances complexity and parameterization as it uses empirical and quasiwww.
Size: 789 kb
Paper DOI: 10.2495/DEB100171
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This paper can be found in the following bookMonitoring, Simulation, Prevention and Remediation of Dense and Debris Flows IIIBuy