Modelling Soil Erosion And Sediment Transport
Under Different Land Management Options In A
Southern Italy Watershed
Author(s)
I. Abuiziah, T. Bisantino, F. Gentile & G. Trisorio Liuzzi
Abstract
The aim of the study is to investigate the influence of different land management
options on the sediment load at the watershed scale. To reach this aim the
Annualized AGricultural Non Point Source (AnnAGNPS) model was used in the
Candelaro basin (2300 km2). The watershed is located in a semi-arid area of
southern Italy (Puglia region) and is affected by extensive erosion processes on
the hillslopes. The sediment transport simulations have been compared with
15 years (1970–1984) data coming from measures taken in two sub-watersheds
(Vulgano and Salsola). Afterwards the model has been applied for a period of 24
years (1985–2008) to evaluate the effects of different land management options
on the sediment yield: traditional best management practices (BMPs),
environmentally-targeted agricultural practices and water and soil conservation
works. The results obtained in the first part of the work show that AnnAGNPS
model performs well in simulating runoff and sediment yields at the watershed
scale. Furthermore the analysis carried out shows that the model is an efficient
tool to assess the influence of different management options in the long term and
in different weather conditions.
Keywords: AnnAGNPS model, soil erosion, surface runoff, sediment yield,
watershed, management options.
1 Introduction
Water quality and quantity is certainly the most challenging current and future
natural issue, especially in arid and semi-arid regions. Water management is the
most critical issue as it impacts the livelihood of people and the productivity of
the land. Hydrological and erosive models form the basis for decisions regarding
Keywords
AnnAGNPS model, soil erosion, surface runoff, sediment yield,
watershed, management options.
Related Book
Other papers in this volume
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