Runoff and Soil Erosion Evaluation by the AnnAGNPS Model in a Small Mediterranean Watershed

Licciardello, Feliciana; Zema, Demetrio Antonio; Zimbone, Santo Marcello; Bingner, R. L.

doi:10.13031/2013.23972

Cited by 80 publications

(96 citation statements)

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“…In uncalibrated mode, the model tends to over-predict the runoff volumes, so the initial CNs were properly decreased to get runoff results closer to the observed ones. The same results were found in semi-arid conditions by Licciardello et al (2007).…”

Section: Calibration and Validationsupporting

confidence: 86%

“…High efficiency is shown by the coefficient of determination R 2 value (R 2 =0.81), while other statistical indexes (NSE and RMSE) show a satisfactory prediction (Table 6). Other authors (Zema et al, 2010;Shrestha et al, 2006;Licciardello et al, 2007) Horizons in agricultural, forestry and biosystems engineering, Viterbo, Italy, September 8-12, 2013 . For forest and rangeland, MN values respectively equal to 0.8 and 0.13 were set , while for urban areas, cropland and pasture the initial value of 0.15 was considered.…”

Section: Calibration and Validationmentioning

confidence: 99%

“…Although there has been considerable effort, additional work is needed to assess and improve the reliability of available prediction models in different environmental contexts. Reliable prediction models can help to select the most practical and effective tools in reducing erosion problems and developing appropriate land use planning (Licciardello et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Assessments of model performance, frequently coupled with calibration/validation trials in monitored watersheds ranging from 32 ha to 2500 km 2 , have recently been published (Licciardello et al, 2007;Yuan et al, 2008;Parajuli et al, 2009;Zema et al, 2010) Few studies have been conducted using AnnAGNPS at the watershed scale in semi-arid environments. Here the quantification of sediment transport is quite difficult due to the high variability of rainfalls and water flows.…”

Section: Introductionmentioning

confidence: 99%

“…With particular reference to the Mediterranean environment, tests of the single-event model AGNPS were carried out in Italy, where hydrological effects of different land uses in an alpine environment (Cazorzi and Dalla Fontana, 1996;Cazorzi, 1996;Lenzi and Di Luzio, 1997) as well as soil erosion in southern small watersheds characterized by ephemeral streams (Morgagni et al, 1993;Licciardello and Zimbone, 2002) were successfully predicted.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Runoff and sediment yield modeling in a medium-size mediterranean watershed

Abdelwahab¹,

Bisantino²,

Milillo³

et al. 2013

J Agricult Engineer

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The AnnAGNPS model was used to estimate runoff, peak discharge and sediment yield at the event scale in the Carapelle watershed, a Mediterranean medium-size watershed (506 km 2 ) located in Apulia, Southern Italy. The model was calibrated and validated using five years of runoff and sediment yield data measured at a monitoring station located at Ordona -Ponte dei Sauri Bridge. A total of 36 events was used to estimate the output of the model during the period 2007-2011, in comparison to the corresponding observations at the watershed outlet. The model performed well in predicting runoff, as was testified by the high values of the coefficients of efficiency and determination during the validation process. The peak flows predictions were satisfactory especially for the high flow events; the prediction capability of sediment yield was good, even if a slight over-estimation was observed. Finally, the model was used to evaluate the effectiveness of different Management practices (MPs) on the watershed (converting wheat to forest, using vegetated streams, crop rotation corn/soybean, no tillage). While the maximum reduction in sediment yield was achieved converting wheat to forest, the best compromises between soil conservation and agriculture resulted to be crop rotations.

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Section: Calibration and Validationsupporting

confidence: 86%

Section: Calibration and Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Runoff and sediment yield modeling in a medium-size mediterranean watershed

Abdelwahab¹,

Bisantino²,

Milillo³

et al. 2013

J Agricult Engineer

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Evaluation of the use of remotely sensed evapotranspiration estimates into AnnAGNPS pollution model

et al. 2011

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The utilization of evapotranspiration (ET) estimates, derived from satellite remote sensing, into the Annualized Agricultural Non-Point Source (AnnAGNPS) pollution model was investigated. Modifications within AnnAGNPS were performed to allow the internal calculations of ET based on climate parameters, collected from ground-based measurements, to be replaced by ET estimates produced with the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. Direct comparison of these sources of ET indicated that AnnAGNPS calculated ET estimates were 35% higher than the MODIS-calculated ET estimates resulting in a 10% increase in runoff at the outlet of the Yalobusha River Watershed for 2004. Simulated monthly runoff values based on MODIS and AnnAGNPS ET estimates for the year 2004 were compared with observed values from stream gages indicating slightly better agreement from the simulation using MODIS-derived ET. Analysis of the spatial distribution of the percent difference in runoff between AnnAGNPS-based ET and MODIS-based ET simulations showed higher differences at the most downstream and upstream of the watershed. These differences could be attributed to different soil properties or to the effect of distant field/weather station assigned to these locations. Although these findings should not be generalized to watersheds located in different ecosystems, the results indicate that the utilization of remotely sensed ET in hydrological modelling is feasible and that use of MODIS to estimate ET provided a more comprehensive spatial coverage than the often available through ground-based measurements.

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Evaluating and modelling the hydrological and erosive behaviour of an olive orchard microcatchment under no‐tillage with bare soil in Spain

Taguas

Ayuso

Peña

et al. 2009

Earth Surf Processes Landf

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Despite the high risk of erosion in olive orchards located in mountainous areas in Spain, little research has been carried out to account for the complexity and interaction of the natural processes of runoff and soil erosion on the catchment scale or small catchment scale. In this study, a microcatchment of 6·7 ha in a mountainous area under no-tillage farming with bare soil was set up to record runoff and sediment. Soil erosion and runoff patterns were monitored over a two-year period. Totally, 22 events were observed. The data were analysed, and then used to calibrate the AnnAGNPS model, which allowed us to complete the data period and describe the hydrological and erosive behaviour on a monthly and annual basis. A high variability in catchment responses was observed, due to differences in the storms and to the effect of the surface soil moisture content. Maximum intensities of 10 and 30 min determined the final runoff values while the total sediment loads were dependent on the rainfall depth. The impact of management on the reduction of porosity can explain the relationship between runoff and intensity in the microcatchment. However, the impact of the spatial scale meant that the transport of sediment required substantial rainfall depths to ensure a continuous flow from the hillslopes. The results of the calibration (E > 0·60 and r > 0·75) on the event and monthly scale confirmed the applicability of AnnAGNPS to predict runoff and erosion in the microcatchment. The predicted average runoff coefficient was 3·3% for the study period and the total average sediment loads, 1·3 Mg/ha/yr. Despite these low values, the model simulation showed that much larger runoff coefficients and soil losses can be expected for periods with several consecutive years in which the annual rainfall depth was over 500 mm. The use of cover is recommended to prevent the high levels of erosion associated with these conditions.

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Runoff and Soil Erosion Evaluation by the AnnAGNPS Model in a Small Mediterranean Watershed

Cited by 80 publications

References 0 publications

Runoff and sediment yield modeling in a medium-size mediterranean watershed

Runoff and sediment yield modeling in a medium-size mediterranean watershed

Evaluation of the use of remotely sensed evapotranspiration estimates into AnnAGNPS pollution model

Evaluating and modelling the hydrological and erosive behaviour of an olive orchard microcatchment under no‐tillage with bare soil in Spain

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