Efficiency Assessment of Rangeland Hydrology and Erosion Model (RHEM) for water erosion quantification (Case Study: Sangane Watershed-Iran)

efficiency assessment of rangeland hydrology and erosion model (rhem) for water erosion quantification (case study: sangane watershed-iran)

بررسی کارایی مدل RHEM در برآورد فرسایش (مطالعه موردی: حوزه آبخیز سنگانه- خراسان رضوی)

Computer simulation models are increasingly popular for predicting soil loss to quantify the processes of detachment, transport and deposition of eroded soils. To assess the effects of different management on soil erosion, selecting the best models and their validation a positive step is considered. In this research the Rangeland Hydrology and Erosion Model (RHEM) was evaluated by using soil er...

Hydrology and Erosion

Climate induced temporal variation, spatial patterns of vegetation and microenvironments, plant growth forms, soils and geology, and topographic factors influence hydrologicprocesses in rangelandenvironments. In Part I of this study,a gradient analy sis of 13 environmental variables identified temporal and spatial gradients in sagebrush coppice and interspacesoil surface cover types. Spatial co...

assessment of gully erosion zonation methods (case study: abgendi watershed)

surface. the development of gullies causes the loss of a great amount of soil and could be considered as one of the principal causes of geo-environmental degradation. in this research fazi model introduced for gully erosion zonation in arid and semiarid area considered to calibration and validation in kahkiloeh and boyerahmad province. therefore, the abgandi watershed were selected by considera...

A model-based integrated assessment of land degradation by water erosion in a valuable Spanish rangeland

This paper presents an integrated assessment model aimed at evaluating land degradation by water erosion in dehesa rangelands in the Iberian Peninsula. The model is built following the system dynamics approach. The degradation risk is likened to the probability of losing a certain amount of soil within a number of years, as estimated over a great number of stochastic simulations. Complementary ...

Abstract The water erosion prediction project (WEPP) model is a physically-based hydrology and erosion model. In recent years, the hydrology prediction within the model has been improved for forest watershed modeling by incorporating shallow lateral flow into watershed

The water erosion prediction project (WEPP) model is a physically-based hydrology and erosion model. In recent years, the hydrology prediction within the model has been improved for forest watershed modeling by incorporating shallow lateral flow into watershed runoff prediction. This has greatly improved WEPP’s hydrologic performance on small watersheds with seasonal flows, but the current vers...