Modelling the impact of land cover changes in the Czech Republic on sediment delivery

Rompaey, Anton Van; Krása, J.; Dostál, Tomáš

doi:10.1016/j.landusepol.2005.10.003

Cited by 76 publications

(40 citation statements)

References 11 publications

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“…This spatial variability has been observed in other studies, like that of De Vente et al (2008), who obtained a SDR that varied from 0.03 to 55% for in 61 subbasins in Spain. Likewise, Van Rompaey, Krasa and Dostal (2007) Water erosion vulnerability and sediment delivery rate in upper Iguaçu river basin -Paraná hand, Beskow et al (2009), examining the Rio Grande River Basin in the state of Minas Gerais, found an average value of 1.62% for a drainage area greater than 6,000 km 2 , whereas Durães, Mello and Beskow (2016), upon inspection of the Paraopeba River Basin's SDR, discovered values varying from 8.6% to 66% for an area of 8,659 km 2 . In accordance with Brown et al (2005), the impacts of alterations in the use of soil in drainage basins concerning superficial runoff can, in general, be evaluated in terms of maximum and minimum outflow.…”

Section: Sediment Delivery Rate (Sdr)mentioning

confidence: 97%

Water erosion vulnerability and sediment delivery rate in upper Iguaçu river basin – Paraná

Durães

Filho

Oliveira

2016

RBRH

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Soil erosion is one of the most striking environmental degradation processes, which its mapping and assessment is an important tool for management activities and natural resource management in river basins, allowing managers to implement policies and sustainable land use occupation. This work aimed to apply the Revised Universal Soil Loss Equation (RUSLE) in a GIS environment in the upper Iguaçu river basin, located at Paraná State, in order to assess the vulnerability to water erosion as well as the concentration of dissolved solids in suspension to estimate the solid discharge and sediment delivery rate, allowing the identification of more susceptible areas to water erosion. The results showed that over 23.52% of the upper Iguaçu river basin presented soil losses below 2.5 t ha -1 yr -1 , meaning current low potential for erosion. Regarding the solid discharge, the basin has values ranging from low to very high, also leading to high values for sediment delivery rate. The identification of risk areas associated with accelerated erosion, carried out in this study provide important information for measures associated with the management, conservation and planning of land use in the basin, which is highly relevant for predicting development of various scenarios for the state Paraná for its hydroelectric potential.Keywords: Soils; Geoprocessing; RUSLE. RESUMOA erosão do solo é um dos processos de degradação ambiental mais impactantes, no qual seu mapeamento e avaliação consiste em uma importante ferramenta para atividades de manejo e gestão dos recursos naturais em bacias hidrográficas, permitindo aos gestores implementar políticas de uso e ocupação do solo de forma sustentável. O presente trabalho teve por objetivo a aplicação da Equação Universal de Perda de Solo Revisada (RUSLE) em ambiente SIG, na Bacia Hidrográfica do Alto Rio Iguaçu (BHARI), localizada no Estado do Paraná / Brasil, afim de avaliar a vulnerabilidade à erosão hídrica bem como a concentração dos sólidos dissolvidos em suspensão para estimar a descarga solida e a taxa de aporte de sedimentos, permitindo identificar áreas mais suscetíveis à erosão hídrica. Os resultados mostraram que mais de 23,52% da BHARI apresentou perdas de solo abaixo de 2,5 t ha -1 ano -1, significando baixo potencial atual de erosão. Em relação a descarga sólida, a bacia apresentou valores variando de baixo a muito alta, levando também a elevados valores para a taxa de aporte de sedimentos. A identificação de áreas de risco associadas à erosão acelerada, realizadas neste estudo, fornecem subsídios importantes para medidas associadas ao manejo, conservação e planejamento do uso do solo nesta bacia, a qual é altamente relevante para predição de desenvolvimento de cenários variados para o Estado do Paraná por seu potencial hidroelétrico. Palavras

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Section: Sediment Delivery Rate (Sdr)mentioning

confidence: 97%

Water erosion vulnerability and sediment delivery rate in upper Iguaçu river basin – Paraná

Durães

Filho

Oliveira

2016

RBRH

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“…Erosion models (a review of erosion and sediment transport models was published by Merritt et al 2003) can then be used to estimate the effect of different land pattern situations or virtual land protection scenarios. Various scenarios for average field size and for the conversion of selected fields to grassland in the Czech Republic were modelled by Van Rompaey et al (2007) using the SEDEM model.…”

mentioning

confidence: 99%

Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands

Báčová¹,

Krása²

2016

Soil Water Res.

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Báčová M., Krása J. (2016): Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands. Soil & Water Res., This study is focused on the historical evolution of a heavily eroded field with discontinuous grass cover on a major thalweg (ephemeral gully). Tens of parcels originally formed a protective pattern in the study area, and the thalweg was permanently covered with grass. During the period of collectivization, the field structure had been unified into a compact 34 ha parcel, which resulted in the formation of ephemeral gullies after every heavy rainfall event. Historical and recent aerial photographs were used to analyze the erosion occurrences, vegetation degradation connected with the erosion processes, and the land-use pattern. The visual erosion pattern assessment has indicated that in this field, rills and other erosion objects have repeatedly developed in the same locations in different time periods. The soil erosion hazard was also modelled by the new Czech erosion model Atlas EROZE. A comparison between the modelling results and the assessment of real visual data shows that areas at risk can be identified by both these methods. In addition, the land-use pattern was modelled using two different scenarios. The results suggest that soil erosion can be significantly reduced by segmentation of the field into smaller plots.

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“…Fifty percent of agricultural land in the CR is threatened by water erosion (Budňáková et al, 2012). Taking the steepest parcels out of production is the most effective way to lower the mean annual sediment export (Van Rompaey, 2007). The grassing is considered positive, because the fact that changes from grassland to arable land, in particular, can lead to signicant carbon dioxide (CO2) emissions due to both aeration and disruption of stabilising soil aggregates below-ground, and the loss of vegetation above-ground (Roberts, Chan, 1990, Zimmermann et al, 2016.…”

Section: Land Use Changesmentioning

confidence: 99%

Agricultural land use changes according LPIS in Brno Metropolitan Area

Jan¹

2016

hgeo

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Territorial changes of agriculture land use between 2008 and 2013 were studied in the Brno Metropolitan Area, consisting of the territory of 167 municipalities around the city of Brno, Czech Republic. The article describes the ways of thinking about land use changes and evaluates differences of land use changes between agriculture system LPIS and Cadastre. Analyses identify differences between databases and detected partial outdated data in Cadastre and therefore conclude, that the most common source is not in some cases precise to express the situation of decreases of agriculture land. The largest decreases were caused according to LPIS by a construction of solar power plants, sand quarries, and urbanization. The end of the article is focused on raising awareness about the possibilities of reducing the negative impact of changes in agricultural land, which emphasizes the education about land use changes irreversibility as the most important.

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Modelling the impact of land cover changes in the Czech Republic on sediment delivery

Cited by 76 publications

References 11 publications

Water erosion vulnerability and sediment delivery rate in upper Iguaçu river basin – Paraná

Water erosion vulnerability and sediment delivery rate in upper Iguaçu river basin – Paraná

Application of historical and recent aerial imagery in monitoring water erosion occurrences in Czech highlands

Agricultural land use changes according LPIS in Brno Metropolitan Area

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