Bank erosion in a Danish lowland stream system

Laubel, A.; Svendsen, Lars M.; Kronvang, Brian; Larsen, Søren E.

doi:10.1007/978-94-017-2163-9_29

Cited by 23 publications

(32 citation statements)

References 9 publications

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“…However, the results are assessed plausible when comparing them with five lowland catchments in Denmark. There, the bank sediment input shares are: 75% (Laubel et al, 1999), 77.5% (Kronvang et al, 1997), 44%, 82% and 56.7% (Hasholt, 1988), while the rest is caused by drain and field erosion input.…”

Section: Discussionmentioning

confidence: 99%

“…Hooke (1978), Laubel et al (1999) and Saynor et al (2003) describe the general usage of erosion pins from which the methodology for this study has been derived. The used erosion pins are stainless steel rods with a diameter of 5 mm and a length of 0.5 m. A representative river section of 300 m length has been chosen where 21 erosion pins have been placed in the banks at three different sites at low flow conditions on 7 July 2008.…”

Section: Field Measurementsmentioning

confidence: 99%

“…While Kronvang et al (1997) and Stone and Krishnappan (2002) found sediment losses from drains of 20 to 130 kg ha −1 yr −1 , Ulèn and Persson (1999) and Chapman et al (2005) investigated drains under loamy and clayey soils with a high susceptibility to form macropores and measured extremely high values of up to 230 and up to 1000 kg ha −1 yr −1 , respectively. River bank erosion depends on water flow characteristics like depth and velocity, freezing and thawing processes, the soil type, soil density and moisture, vessel traffic, cattle treading, as well as stream properties like curvature, cross-sectional shape and plant cover (Hooke, 1979;Saynor et al, 2003;Laubel et al, 1999;Bradbury et al, 1995;Wynn et al, 2004). It is generally considered as the main entry pathway for sediments in lowlands (Laubel et al, 1999;Kronvang et al, 1997;Hasholt, 1988).…”

Section: Introductionmentioning

confidence: 99%

“…River bank erosion depends on water flow characteristics like depth and velocity, freezing and thawing processes, the soil type, soil density and moisture, vessel traffic, cattle treading, as well as stream properties like curvature, cross-sectional shape and plant cover (Hooke, 1979;Saynor et al, 2003;Laubel et al, 1999;Bradbury et al, 1995;Wynn et al, 2004). It is generally considered as the main entry pathway for sediments in lowlands (Laubel et al, 1999;Kronvang et al, 1997;Hasholt, 1988). -H., 2006), the soil (BGR, 1993) with drained areas (Fohrer et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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SEPAL – a simple GIS-based tool to estimate sediment pathways in lowland catchments

2009

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Abstract. Even though soil loss in the lowlands imposes not as much a restriction on land use and agricultural productivity as in erosion affected mountainous areas, the input of fine sediment into the rivers and streams is a concern due to water quality issues and substrate siltation. Drains, river banks and agricultural fields are the three main sources of fine sediment in lowland regions. For a successful implementation of measures to decrease sediment input a well-founded knowledge of the individual entry pathways is essential. To assess the importance of possible entry pathways, a GIS based methodology (SEPAL) has been established combining the ABAG, a river bank erosion formula and a regression approach to include the contributions of drains. SEPAL has been applied on a study catchment in Northern Germany. The results show that 15% of the sediment input into the river comes from agricultural drains, 71% from river banks and 14% from adjacent fields. A comparison of the results with field-mapping and -sampling shows that the approach is plausible. The calculated total annual sediment input is 616 t yr −1 , while the measured suspended sediment load is 636 t yr −1 . It can be concluded that the methodology is suitable for estimating sediment entry pathways and annual sediment loads in lowland catchments as a base for modelling projects and further investigations. However, further work is necessary for gaining sound knowledge about uncertainties and especially about the processes forcing sediment input from drains.

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Section: Discussionmentioning

confidence: 99%

Section: Field Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

SEPAL – a simple GIS-based tool to estimate sediment pathways in lowland catchments

2009

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“…The phenomenon of stream bank erosion was surveyed by many authors (Lawer et al, 1999;Laubel et al, 1999;Haniman 2009;Midgley et al, 2012). One of the possible approaches to estimation or prediction of the erosion of stream banks is through the BANCS model.…”

Section: Introductionmentioning

confidence: 99%