نتایج جستجو برای: soil erosion model

تعداد نتایج: 2282732  

Journal: :international journal of geo science and environmental planning 0
moslem heydari management and planning in natural resources, watersheds and environmental sciences afshin honarbakhsh river hydrodynamic mahdi pajoohesh erosion and sedimentation of soil maryam zangiabadi operation research, programming, planning

in recent years, due to absence of integrated watershed management in most regions, natural resources have witnessed numerous damages with severe floods as one of its consequences which further leads to economic, social and environmental damages. presently, there is no optimal utilization of land in most watersheds hence no optimal model matching with facilities and objectives is used in the wa...

2009
Ioannis Z. Gitas Kostas Douros Chara Minakou George N. Silleos Christos G. Karydas

The aim of this work was to test a modified version of the Universal Soil Loss Equation (USLE) for assessing the risks of erosion in N. Chalkidiki, Greece. USLE estimates the severity of erosion, thus assisting the decision process in selecting erosion control measures. Although USLE has several limitations, it was selected because it is the simplest approach while remaining robust, and it part...

2017
Nazzareno Diodato Luigi Guerriero Gianni Bellocchi

Soil erosion is an issue in the Mediterranean slopes. Erosion plots are useful to quantify erosion rates, but data are difficult to scale up to a slope level. Moreover, short observational frameworks are generally established, making it difficult to represent multi-year fluctuations. This paper deals with the potential of parsimonious modelling to upscale plot erosion (~23 m2) at Monte Pino Met...

Journal: :Environmental Modelling and Software 2007
Guillermo A. Baigorria Consuelo C. Romero

This paper presents a case study in assessment of erosion hotspots in an Andean watershed. To do this, we made use of an interface called Geospatial Modelling of Soil Erosion (GEMSE): a tool that integrates Geographical Information Systems (GIS) with the Water Erosion Prediction Project (WEPP) model. Its advantages are: (i) it is independent of any special GIS software used to create maps and t...

Journal: :Environmental Modelling and Software 2011
B. G. J. S. Sonneveld M. A. Keyzer Leo Stroosnijder

This paper tests the candidacy of one qualitative response model and two quantitative models for a nationwide water erosion hazard assessment in Ethiopia. After a descriptive comparison of model characteristics the study conducts a statistical comparison to evaluate the explanatory power of the models, using an Ethiopian soil erosion data set as reference. The study, therefore, introduces a gen...

Journal: :desert 2008
a. esmaili h. ahmadi s. feiznia j. ghoddoussi

soil erosion results from an interaction of several parameters, which vary in space and time. awareness ofenvironmental changes and their impact on the intensity and spatial pattern of water erosion can effectively help inrecognition of erosional reactions versus the affecting factors. the aim of this paper is to describe the development ofa methodology based on present knowledge and available ...

Journal: :Bulletin of the Geological Society of Greece 2017

Journal: :Journal of Hydrologic Engineering 2009

2018
Jesús Rodrigo-Comino Saskia Keesstra Artemi Cerdà

Soil erosion in vineyards has to be considered as an environmental concern as it depletes soil fertility and produces damages in the fields and downstream. High soil and water losses decrease soil quality, and subsequently, can reduce the quality of the grapes and wine. However, in specialized journals of viticulture and enology, soil erosion studies are not present. This paper surveys the soil...

One of the most important types of water erosion, is massive erosion. Soils with fine particles (especially silt particles) have little stability against erosion, because they have more water holding capacity and thus increase the saturation moisture and the likelihood of this type of erosion. So In this study, to investigate the relationship between particle size of silt, with behavior and rhe...

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