Use geopedological methods for the evaluation of sedimentation rates on river floodplains, southern Québec, Canada

Saint-Laurent, Diane; St-Laurent, Julien; Lavoie, Louis; Ghaleb, Bassam

doi:10.1016/j.catena.2007.12.004

Cited by 19 publications

(24 citation statements)

References 35 publications

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“…The values obtained for the surface horizons (0-20 cm) based on the zones being analyzed are, respectively, p = 0.0008 (FFz and MFz), p = 0.0002 (FFz and NFz), and p = 0.9849 (MFz and NFz) (Figure 4a), while for the statistical values for the entire profile (0-100 cm) are p < 0.001 (FFz and MFz), p < 0.001 (FFz and NFz) and p = 0.99817 (MFz and NFz) (Figure 4b). Comparable values were obtained for the surface horizons covering the soil data from 2003 to 2014 (p < 0.001) [31,37,38]. The TOC for the soils that were analyzed are therefore comparable between the MFz and NFz areas, whereas the soils in the frequent-flood zones stand out through their lower organic carbon content.…”

Section: Total Organic Carbon Contentmentioning

confidence: 81%

“…The analysis of variance (ANOVA) and the Tukey's test that were conducted on the soil organic carbon content in the different zones that were analyzed show significant differences among zones (Figure 4a,b). [31,37,38]. The TOC for the soils that were analyzed are therefore comparable between the MFz and NFz areas, whereas the soils in the frequent-flood zones stand out through their lower organic carbon content.…”

Section: Total Organic Carbon Contentmentioning

confidence: 86%

“…A characterization of the soil litter along with a description of the dominant plant species were noted at each sampling station, as well as measurements of the bulk density of the soil surface horizons (0-20 cm), the microtopography, the presence/absence of groundwater, and the surface drainage based on the criteria outlined in the Canadian System of Soil Classification [35] and the Manual on Soil Sampling and Methods of Analysis [36]. Lastly, other soil data (n = 45) from recent studies (2003 and 2006) on the same Richmond site were incorporated into the database in order to compare all the results [27,37,38]. The position of the sampling points along the transects was determined using a GPS (Garmin 60CSx, Kansas, MI, USA), after which the data were exported into mapping software (ArcGIS ® 10.2, ESRI, Redlands, CA, USA).…”

Section: Selection Of Sites and Collection Of Soil Samplesmentioning

confidence: 99%

“…Conversely, a higher organic carbon content is found in the no-flood zones (NFz), in particular in the surface horizons. The resulting TOC values can be compared to the MFz soils in the transition zone characterized by less flooding, but with less marked soil development [37,38].…”

Section: Alluvial Soil Propertiesmentioning

confidence: 99%

“…The finer matrices (silt and clay) are often typical of floodplain soils, and the silt portion is often the dominant fraction [20,47]. During the recession phase, the fine particles can form sedimentary covers a few centimeters thick (4-5 cm), as observed in some sites of the Saint-François River [28,37]. Lastly, the soils outside the floodplains are sometimes characterized by coarser textures due to the origin of the materials (e.g., reworked till or glacial deposits).…”

Section: Alluvial Soil Propertiesmentioning

confidence: 99%

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Impacts of Floods on Organic Carbon Concentrations in Alluvial Soils along Hydrological Gradients Using a Digital Elevation Model (DEM)

Saint-Laurent

Paradis

Drouin

et al. 2016

Water

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This study examines the spatial distribution of the organic carbon found in alluvial soils affected by successive floods. In flood zones, very little is known of the processes associated with the development of soils subjected to frequent flooding, in particular with respect to the accumulation of litter and organic carbon concentrations. The aim of this study is to better understand the distribution of organic carbon based on various hydrological gradients associated with flood recurrence. A digital elevation model was developed from LIDAR data to assess the microtopography of the site, and further delineate floodplains and no-flood zones. Various soil properties were considered in addition to organic carbon, such as pH, soil bulk density, litter, drainage, and topographic levels (elevation). The results show that the soils in the frequent-flood zones (FFz, recurrence of 0-20 years) have significantly less total organic carbon than the soils in the no-flood zones (NFz) and the moderate flood zones (MFz,. Average values obtained for the surface horizons (0-20 cm) vary by 1.74%˘0.85% (FFz), 3.34%˘1.09% (MFz) and 3.54%˘1.77% (NFz), respectively. The absence of ground litter in the frequent flood zones helps decrease the input of organic matter in the surface horizons and progressively results in soil depletion.

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Section: Total Organic Carbon Contentmentioning

confidence: 81%

Section: Total Organic Carbon Contentmentioning

confidence: 86%

Section: Selection Of Sites and Collection Of Soil Samplesmentioning

confidence: 99%

Section: Alluvial Soil Propertiesmentioning

confidence: 99%

Section: Alluvial Soil Propertiesmentioning

confidence: 99%

See 3 more Smart Citations

Impacts of Floods on Organic Carbon Concentrations in Alluvial Soils along Hydrological Gradients Using a Digital Elevation Model (DEM)

Saint-Laurent

Paradis

Drouin

et al. 2016

Water

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Geomorphological controls on fluvial carbon storage in headwater peatlands

Alderson

Evans

Rothwell

et al. 2019

Earth Surf Processes Landf

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Geomorphological controls and catchment sediment characteristics control the formation of floodplains and affect their capacity to sequester carbon. Organic carbon stored in floodplains is typically a product of pedogenic development between periods of mineral sediment deposition. However, in organically‐dominated upland catchments with a high sediment load, eroded particulate organics may also be fluvially deposited with potential for storage and/or oxidation. Understanding the redistribution of terrestrial carbon laterally, beyond the bounds of river channels is important, especially in eroding peatland systems where fluvial particulate organic carbon exports are often assumed to be oxidised. Floodplains have the potential to be both carbon cycling hotspots and areas of sequestration. Understanding of the interaction of carbon cycling and the sediment cascade through floodplain systems is limited. This paper examines the formation of highly organic floodplains downstream of heavily eroded peatlands in the Peak District, UK. Reconstruction of the history of the floodplains suggests that they have formed in response to periods of erosion of organic soils upstream. We present a novel approach to calculating a carbon stock within a floodplain, using XRF and radiograph data recorded during Itrax core scanning of sediment cores. This carbon stock is extrapolated to the catchment scale, to assess the importance of these floodplains in the storage and cycling of organic carbon in this area. The carbon stock estimate for the floodplains across the contributing catchments is between 3482‐13460 tonnes, equating on an annualised basis to 0.8‐4.5% of the modern‐day POC flux. Radiocarbon analyses of bulk organic matter in floodplain sediments revealed that a substantial proportion of organic carbon was associated with re‐deposited peat and has been used as a tool for organic matter source determination. The average age of these samples (3010 years BP) is substantially older than Infrared Stimulated Luminesence dating which demonstrated that the floodplains formed between 430 and 1060 years ago. Our data suggest that floodplains are an integral part of eroding peatland systems, acting as both significant stores of aged and eroded organic carbon and as hotspots of carbon turnover. © 2019 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd.

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Concentration factors for 226Ra in the mullet (Mugilidae) species Mugil cephalus from the South Adriatic Sea

Antovic

Antović

2011

J Radioanal Nucl Chem

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Use geopedological methods for the evaluation of sedimentation rates on river floodplains, southern Québec, Canada

Cited by 19 publications

References 35 publications

Impacts of Floods on Organic Carbon Concentrations in Alluvial Soils along Hydrological Gradients Using a Digital Elevation Model (DEM)

Impacts of Floods on Organic Carbon Concentrations in Alluvial Soils along Hydrological Gradients Using a Digital Elevation Model (DEM)

Geomorphological controls on fluvial carbon storage in headwater peatlands

Concentration factors for 226Ra in the mullet (Mugilidae) species Mugil cephalus from the South Adriatic Sea

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