Water Erosion Prediction Project (WEPP) Technology for Assessment of Runoff, Soil Loss and Sediment Yield Potential

2006 ◽  
Author(s):  
Dennis C. Flanagan ◽  
James R. Frankenberger ◽  
Charles R. Meyer
Keyword(s):  
Sediment Yield ◽  
Soil Loss ◽  
Water Erosion ◽  
Yield Potential ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project

scholarly journals Soil erosion by snow gliding – a first quantification attempt in a subalpine area in Switzerland

2014 ◽  
Vol 18 (9) ◽  
pp. 3763-3775 ◽  
Author(s):  
K. Meusburger ◽  
G. Leitinger ◽  
L. Mabit ◽  
M. H. Mueller ◽  
A. Walter ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Land Cover ◽  
Sediment Yield ◽  
Soil Loss ◽  
Water Erosion ◽  
Erosion Rates ◽  
The Difference ◽  
Snow Gliding

Abstract. Snow processes might be one important driver of soil erosion in Alpine grasslands and thus the unknown variable when erosion modelling is attempted. The aim of this study is to assess the importance of snow gliding as a soil erosion agent for four different land use/land cover types in a subalpine area in Switzerland. We used three different approaches to estimate soil erosion rates: sediment yield measurements in snow glide depositions, the fallout radionuclide 137Cs and modelling with the Revised Universal Soil Loss Equation (RUSLE). RUSLE permits the evaluation of soil loss by water erosion, the 137Cs method integrates soil loss due to all erosion agents involved, and the measurement of snow glide deposition sediment yield can be directly related to snow-glide-induced erosion. Further, cumulative snow glide distance was measured for the sites in the winter of 2009/2010 and modelled for the surrounding area and long-term average winter precipitation (1959–2010) with the spatial snow glide model (SSGM). Measured snow glide distance confirmed the presence of snow gliding and ranged from 2 to 189 cm, with lower values on the north-facing slopes. We observed a reduction of snow glide distance with increasing surface roughness of the vegetation, which is an important information with respect to conservation planning and expected and ongoing land use changes in the Alps. Snow glide erosion estimated from the snow glide depositions was highly variable with values ranging from 0.03 to 22.9 t ha−1 yr−1 in the winter of 2012/2013. For sites affected by snow glide deposition, a mean erosion rate of 8.4 t ha−1 yr−1 was found. The difference in long-term erosion rates determined with RUSLE and 137Cs confirms the constant influence of snow-glide-induced erosion, since a large difference (lower proportion of water erosion compared to total net erosion) was observed for sites with high snow glide rates and vice versa. Moreover, the difference between RUSLE and 137Cs erosion rates was related to the measured snow glide distance (R2 = 0.64; p < 0.005) and to the snow deposition sediment yields (R2 = 0.39; p = 0.13). The SSGM reproduced the relative difference of the measured snow glide values under different land uses and land cover types. The resulting map highlighted the relevance of snow gliding for large parts of the investigated area. Based on these results, we conclude that snow gliding appears to be a crucial and non-negligible process impacting soil erosion patterns and magnitude in subalpine areas with similar topographic and climatic conditions.

Geospatial Application of the Water Erosion Prediction Project (WEPP) Model

2011 ◽  
Author(s):  
Dennis C Flanagan ◽  
James R Frankenberger ◽  
Thomas A Cochrane ◽  
Christian S Renschler ◽  
William J Elliot
Keyword(s):  
Water Erosion ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project

Testing a new rill flow resistance approach using the Water Erosion Prediction Project experimental database

2018 ◽  
Vol 33 (4) ◽  
pp. 616-626 ◽  
Author(s):  
Alessio Nicosia ◽  
Costanza Di Stefano ◽  
Vincenzo Pampalone ◽  
Vincenzo Palmeri ◽  
Vito Ferro ◽  
...  
Keyword(s):  
Flow Resistance ◽  
Water Erosion ◽  
Experimental Database ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project ◽  
Resistance Approach ◽  
Rill Flow

scholarly journals Comparação de taxas de erosão em estradas florestais estimadas pelo modelo WEPP (Water Erosion Prediction Project) modificado em relção a medições experimentais

2003 ◽  
Vol 27 (3) ◽  
pp. 295-300 ◽  
Author(s):  
Carlos Cardoso Machado ◽  
Alessandra Reis Garcia ◽  
Elias Silva ◽  
Alessandro Machado Fontes
Keyword(s):  
Water Erosion ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project

O objetivo do trabalho foi testar o modelo WEPP (Water Erosion Prediction Project), através de comparações entre volume de enxurrada e perda de solo observados experimentalmente, provenientes dos segmentos de estradas florestais submetidas à chuva natural com inclinações de 1 e 7% e comprimentos de rampa de 20 e 40 m, e aqueles preditos pelo aplicativo, visando o desenvolvimento de um modelo brasileiro de predição de erosão em estradas florestais. Na determinação da quantidade do material erodido foram instalados tambores coletores, com capacidade de 209,25 litros, localizados na parte inferior das estradas, onde foram inseridas tubulações de PVC de 2 polegadas para coleta dos sedimentos provenientes da estrada propriamente dita. Nos tambores coletores foram feitos orifícios nivelados e perfeitamente iguais, posicionados a 0,65 m do fundo do primeiro e a 0,60 m do fundo do segundo, que funcionaram como um divisor Geib. Nas parcelas de 20 e 40 m de comprimento foram feitos cinco e sete orifícios, respectivamente, no primeiro e segundo tambores. O terceiro tambor foi utilizado para coletar o excedente da enxurrada proveniente do segundo tambor. Os tambores foram ligados em série, através de cano PVC de 2 polegadas. Os dados de volume e intensidade de precipitação diária foram obtidos com a instalação de pluviômetro e pluviógrafo no local. O período de coleta de dados foi de um ano, concentrando-se na época das chuvas. Posteriormente, os arquivos de clima, precipitação, solo, inclinação e comprimento do segmento foram introduzidos e adaptados ao modelo de predição de erosão WEPP com o propósito de testá-lo, visando a confecção de um modelo apropriado às condições brasileiras.

GeoWEPP - The Geo-spatial interface for the Water Erosion Prediction Project

2002 ◽  
Author(s):  
Chris S. Renschler ◽  
Dennis C. Flanagan ◽  
Bernard A. Engel ◽  
James R. Frankenberger
Keyword(s):  
Water Erosion ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project

The application of the Water Erosion Prediction Project (WEPP) model for the estimation of runoff and sediment on a monthly time resolution

2015 ◽  
Vol 74 (7) ◽  
pp. 5827-5837 ◽  
Author(s):  
Abolghasem Akbari ◽  
Leila Sedaei ◽  
Mehdi Naderi ◽  
Azizan Abu Samah ◽  
Nazila Sedaei
Keyword(s):  
Time Resolution ◽  
Water Erosion ◽  
Erosion Prediction ◽  
Water Erosion Prediction Project
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