Land use effects on sediment yield and quality

Slaymaker, Olav

doi:10.1007/bf02391925

Cited by 14 publications

(2 citation statements)

References 32 publications

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“…It should be noted that previous studies highlighted the negative impact of urbanised areas on the quality of bottom sediments in rivers. This was mainly due to the impact of direct discharge of wastewater into rivers or increasing surface runoff from areas with impervious surfaces [62,63]. However, the following phenomena that have been marked in recent years, such as the connection of most wastewater sources to wastewater treatment plants, the increase of areas that enable rainwater infiltration or, for example, measures to retain rainwater runoff from impervious surfaces, may reduce or neutralise the negative impact of urbanisation on the quality of surface water and bottom sediments.…”

Section: Spatial Variation Of Pollutant Concentrationsmentioning

confidence: 99%

The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland

Fiedler

2021

Land

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Changes in the environment, aiming at agricultural intensification, progressive urbanisation and other forms of anthropopression, may cause an increase in soil erosion and a resulting increase in the pollution inflow to surface water. At the same time, this results in increased nutrient pollution of bottom sediments. In this study, the concentrations of total nitrogen (TN), total phosphorus (TP), total organic carbon (TOC), calcium (Ca), iron (Fe) and potassium (K) were analysed using bottom sediment samples collected at 39 sites located along the entire length of the Warta River and its tributaries. Agricultural use of land adjacent to rivers was found to significantly degrade sediment quality, while anthropogenic land use (as defined by Corine Land Cover classification—CLC), unlike previous studies, reduces the pollution loads in the bottom sediments. Forest use also contributes to the reduction of the pollution load in sediments. It was found that the significance of the relationship between pollutant concentrations and land use depends on the length of the river–land interface. According to the analyses, the level of correlation between the analysed constituents depends on the use of land adjacent to rivers. The impact of agricultural land use has the strongest effect in the 1 km zone and 5 km in the case of anthropogenic land use. The results showed that the variability of total phosphorus TP concentrations is strongly correlated with the variability of iron concentrations. SPI values indicate that the risk to sediment quality is low due to TOC and Fe concentrations. In contrast, the risk of sediment pollution by TN and TP shows greater differentiation. Although the risk is negligible for 40% of the samples, at the same time, for 33% of the samples, a very high risk of pollution with both TN and TP was found.

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Section: Spatial Variation Of Pollutant Concentrationsmentioning

confidence: 99%

The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland

Fiedler

2021

Land

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“…Although upland soil erosion is likely the original source of much of the suspended sediment in streams, re-suspension of sediment in the stream channel and streambank erosion can contribute to high concentrations of suspended sediment even when rates of soil erosion are small (Slaymaker, 1982;Phillips, 1987). Study results from a wide range of settings indicate that only a small portion of eroded soil is discharged downstream (Trimble, 1983, Walling, 1983Walling and others, 2006) and that decades may be required to detect sediment-discharge reductions that result from decreased rates of erosion (Trimble, 1983;Richter and Korfmacher, 1995).…”

Section: Introductionmentioning

confidence: 99%

A study of the effects of implementing agricultural best management practices and in-stream restoration on suspended sediment, stream habitat, and benthic macroinvertebrates at three stream sites in Surry County, North Carolina, 2004-2007-Lessons learned

Smith¹,

Ferrell²,

Harned³

et al. 2011

Scientific Investigations Report

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Integrated assessment of catchment suspended sediment budgets: a Zambian example

et al. 2001

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In many developing countries, the management of sediment-related environmental problems is severely hampered by a lack of information on sediment mobilization and delivery in river basins. The sediment budget concept represents a valuable framework for assembling such information, which can, in turn, be used to assist with the design and implementation of soil erosion and sediment control policies. However, the information necessary to construct a catchment sediment budget is dif®cult to assemble. Against this background, an integrated approach to establishing a catchment suspended sediment budget, involving a river monitoring station, the use of 137 Cs measurements to estimate soil erosion and deposition and¯oodplain accumulation rates within the catchment, and sediment source ®ngerprinting, has been developed and tested in the 63 km 2 catchment of the upper Kaleya River in southern Zambia. The approach developed not only provides detailed information on individual components of the suspended sediment delivery system, but also permits the establishment of the overall catchment sediment budget. A sediment budget for the upper Kaleya catchment is presented and both its key features and its wider implications for catchment management are discussed.

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Land use effects on sediment yield and quality

Cited by 14 publications

References 32 publications

The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland

The Effects of Land Use on Concentrations of Nutrients and Selected Metals in Bottom Sediments and the Risk Assessment for Rivers of the Warta River Catchment, Poland

A study of the effects of implementing agricultural best management practices and in-stream restoration on suspended sediment, stream habitat, and benthic macroinvertebrates at three stream sites in Surry County, North Carolina, 2004-2007-Lessons learned

Integrated assessment of catchment suspended sediment budgets: a Zambian example

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