Improvement of Drainage Density Parameter Estimation within Erosion Potential Method

Dragičević, Nevena; Karleuša, Barbara; Ožanić, Nevenka

doi:10.3390/proceedings2110620

Cited by 11 publications

(8 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the scale effect of their area, it has been demonstrated that parameters such as slope, land cover, lithology, and soil erosivity have an effect on sediment budget (Van Oost et al 2000;Yan et al 2013;de Vente et al 2013;Fang et al 2016;Messina and Biggs 2016). Moreover, the link between higher drainage density and higher sediment yield is only present in homogeneous bedrock geology (Dragičević et al 2018). In addition, the connectivity of the river networks also plays a significant role.…”

Section: Discussionmentioning

confidence: 99%

Estimation of the area-specific suspended sediment yield from discrete samples in different regions of Belgium

et al. 2021

View full text Add to dashboard Cite

PurposeSuspended sediment transport, which represents the majority of the sediment load, has been studied across very different scales and in a wide variety of regions and climates. Despite numerous studies, data for European watersheds are generally limited and correspond to large rivers systems. Especially, in Belgium, little data is available outside the Belgian loess belt. Moreover, the high heterogeneity of soil erosion and sediment transport makes it difficult to measure or model at watershed scale. The purpose of this research is to estimate the median sediment yields in different geographical regions and to detect their explanatory variables.Materials and methodsGathering data from 1994 to 2016, more than 2000 measurements of suspended sediment concentration at 72 river stations mainly located in South-Belgium were sampled according to a flood-event-based manual methodology. This allowed fast acquisition of data in watersheds ranging from 7 to 3600 km 2 in different geographical regions. Median area-specific sediment yields (SSY) were calculated at watershed scale while looking for regional differences.Results and discussionMedian area-specific sediment yields computed for the period 1996-2018 show regional differences: 19.2 t km −2 year −1 on sandy substrate (Lorraine), 24.9 t km −2 year −1 on schisto-sandstone substratum (Ardenne), and up to 119 t km −2 year −1 in the loamy Brabant plateau, with a link to the agricultural land cover and, to a lesser extent, to the watershed slope. The high temporal and spatial variability of rainfall has great effects on the SSY, necessitating the gathering of more than 20 years of data to smooth the high variability of SSY. A multiple correlation of land cover variables and the average slope of the watershed with SSY managed to explain 48% of the variance within the SSY observations.ConclusionsThe agricultural land cover has an important effect on median SSY values. While the regionalization of Belgium is largely based on lithology, soils, and altitude, the land use resulting from these physical and climatic characteristics explains the differences in SSY. Field values of clogged dams and waterways confirm the matching of the SSY computation from discrete samples, despite the high temporal variability of sediment transport. KeywordsSediment yield • Suspended sediment concentration • Soil erosion rate • Meuse basin • Scheldt basin

show abstract

Section: Discussionmentioning

confidence: 99%

Estimation of the area-specific suspended sediment yield from discrete samples in different regions of Belgium

et al. 2021

View full text Add to dashboard Cite

show abstract

“…From the results of figure (9) it is concluded that the temperature degrees vary between 0.31℃ and 1.97℃. The entire eastern part of the basin has coefficients greater than 1 which is explained by the dominance of high altitudes and the low density of vegetation cover, and in return The only places with a low coefficient are located at the level of the valleys and their thalwegs.…”

Section: Temperature Coefficient (T)mentioning

confidence: 90%

Assessment and mapping of water erosion by the integration of Gavrilovic's "EPM" model in MENA region, case study of the Admer-Ezem sub-watershed, upper Oum-Rbaa basin, Morocco.

Limame,

Hairchi,

Hanchane

et al. 2024

Preprint

View full text Add to dashboard Cite

The main goal of the research is to assess soil erosion while analyzing the spatial distribution of its evolution using the empirical erosion potential model, or EPM. Situated northwest of the upper Oum-Rbaa watershed, the Admer-Ezem watershed is part of the research area. Its climate may be described as semi-arid Mediterranean. The quality of the soil could be better. separating the factors of complexity and interdependence in the analysis of erosion risk was made possible quickly and effectively by the Geographic Information System (GIS)'s integration of thematic maps of the various Gavrilovic Equation (EPM) factors with their databases. It also made it possible to evaluate each factor's influence and determine how much it contributed to soil loss. The priority of the various watershed regions was made possible by the use of Gavrilovic's calculations. This basin covers a total area of 197.59 km2, and is marked by relatively abundant rainfall (800 mm/year), and under strong anthropogenic pressure. This will have an impact of the overexploitation of natural resources in general and soils in particular. Excessive use of agricultural land has led to its fragility and increased susceptibility to erosion. These natural and anthropogenic conditions have induced an intense erosive dynamic, which can be seen in its various forms, (badlands, landslides, and flows, concentrated active ravins…). The use of the “EPM” model for estimating soil losses approximates the severity of the erosion phenomenon. Soil loss due to water erosion according to the model used is estimated at 53.34 t/ha/year as the highest value. And 597.642 t/ha/year as the lowest value. In addition, the analysis of these results made it possible, using GIS, to determine the factors that control water erosion and which are, in order of importance: rainfall, slope and soil sensitivity and soil protection. rainfall, slope, soil sensitivity, and soil protection, in that order of significance.

show abstract

“…The linear parameters are analyzed for the stream order, stream length, mean stream length, and bifurcation ratio (Harsha et al, 2020). The mean stream length is related to the drainage network and corresponds with its surface (Dragičević et al, 2018;Pondari et al, 2020). The shape parameters include the form factor, shape factor, elongation ratio, compactness coefficient, and circulatory ratio (Al-Assadi, 2020; Saha et al, 2020).…”

Section: Referencesmentioning

confidence: 99%

Full Issue

Team¹

2021

MIST International Journal of Science and Technology

View full text Add to dashboard Cite

MIST) aims at being one of the leading Institutions of Engineering and Technology in regional and international ranking and it continues to play its role as a centre of excellence in creating and disseminating new knowledge in the cutting-edge areas of Science and Technology. I firmly believe that 'MIST International Journal of Science and Technology (MIJST)', the flagship journal of this Institution has already been able to make an impact with its quality signatures. I am happy to note that MIJST is already indexed by a number of search engines, such as, DOI Crossref, Google Scholar, Microsoft Academic Search, Publons, Semantic Scholar, BaglaJOL, Creative Commons and Open Journal System and working toward getting indexed in SCOPUS, Directory of Open Access Journals (DOAJ) and Web of Science (WoS).Golden Jubilee of our Independence is a landmark event for us. To make this event memorable, this issue of MIJST has been dedicated to the Golden Jubilee of Independence of Bangladesh. I would like to express my sincere thanks to the MIJST team for its on time publication of consecutive 3 issues of MIJST, despite the COVID-19 Pandemic situation. My deep appreciations to the Authors of this issue for their scholarly contributions. Reviewers are also acknowledged for providing invaluable peer review to the articles to ensure high quality of the papers. Very special thanks to the National and the International Advisory Boards for their invaluable suggestions and guidance in maintaining the quality of the Journal. I wish continued success of MIJST.

show abstract

Improvement of Drainage Density Parameter Estimation within Erosion Potential Method

Cited by 11 publications

References 18 publications

Estimation of the area-specific suspended sediment yield from discrete samples in different regions of Belgium

Estimation of the area-specific suspended sediment yield from discrete samples in different regions of Belgium

Assessment and mapping of water erosion by the integration of Gavrilovic's "EPM" model in MENA region, case study of the Admer-Ezem sub-watershed, upper Oum-Rbaa basin, Morocco.

Full Issue

Contact Info

Product

Resources

About