The fate of soil organic carbon upon erosion, transport and deposition in agricultural landscapes — A review of different concepts

Kirkels, Frédérique; Cammeraat, Erik; Kuhn, N. J.

doi:10.1016/j.geomorph.2014.07.023

Cited by 180 publications

(101 citation statements)

References 80 publications

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“…Pendleton et al (2012) speculate between 25%-100% of carbon in surface sediments (<1m deep) and wetland biomass may be reemitted to the atmosphere, mainly as CO2. Landscape-scale studies show losses of soil carbon of up to 96% (Sigua et al, 2009) with similar results in the agricultural literature (Kirkels et al, 2014). Conversely, Lane et al (2016) found that less than 10% of available carbon was actually mineralized, post-disturbance, while Macreadie et al (2013) found disturbed marshes showed ~30% lower soil organic carbon, though the fate of the lost carbon is unclear.…”

Section: Carbon Sequestration Ratessupporting

confidence: 62%

Modeling the Economic Value of Blue Carbon in Delaware Estuary Wetlands: Historic Estimates and Future Projections

Carr

Shirazi

Parsons

et al. 2018

Journal of Environmental Management

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Coastal wetlands sequester large amounts of carbon in their soils, effectively removing carbon dioxide from the atmosphere and acting as a carbon sink. In this paper, we estimate the economic value of carbon sequestered by wetlands in the Delaware Estuary. We estimate the value of the current stock of wetlands, the value of the historic loss of wetlands, and under a range of different scenarios the expected future loss. We use historical topographic maps and Land Cover inventories of the Delaware Estuary to measure the acreage of tidal wetlands in nine distinct time periods from 1778 to 2011. Using these data, we estimate an annual rate of wetland loss of 1.03km 2 . Coupling observed land cover change with exogenous factors including sea-level rise, population pressure, and channel dredging, we estimate changes in tidal wetland area under a range of future scenarios for our expected future economic loss estimates. Keywords carbon sequestration; blue carbon; tidal wetlands; ecosystem services; social cost of carbon 2

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Section: Carbon Sequestration Ratessupporting

confidence: 62%

Modeling the Economic Value of Blue Carbon in Delaware Estuary Wetlands: Historic Estimates and Future Projections

Carr

Shirazi

Parsons

et al. 2018

Journal of Environmental Management

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“…3 Results and discussion 3.1 Variations in the depth of humic horizon Many authors found correlation between soil depth and redistribution processes (Jakab et al 2010;Kirkels et al 2014;Niu et al 2015;Vona et al 2006;Wiaux et al 2014). The depth of humic horizon varies along the slope sections between 0 cm and 300 cm.…”

Section: Data Evaluation Techniques Appliedmentioning

confidence: 98%

Redistribution of Soil Organic Carbon Triggered by Erosion at Field Scale Under Subhumid Climate, Hungary

et al. 2016

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Soil organic carbon (SOC) has primary importance in terms of soil physics, fertility and even of climate change control. An intensively cultivated Cambisol was studied in order to quantify SOC redistribution under subhumid climate. One hundred soil samples were taken from the representative points of the solum along the slopes from the depth of 20-300 cm with a mean 1.2 % SOC content. They were measured by the simultaneous application of diffuse reflectance (240-1900 nm) and traditional physico-chemical methods in order to compare the results. On the basis of the results hierarchical cluster analyses were performed. The spatial pattern of the groups created were similar, and even though the classifications were not the same, diffuse reflectance has proven to be a suitable method for soil/sediment classification even within a given arable field. Both organic and inorganic carbon distribution was found a proper tool for estimations of past soil erosion process. Results show SOC enrichment on two sedimentary spots with different geomorphological positions. Soil organic matter compound also differs between the two spots due to selective deposition of the delivered organic matter. The components of low molecular weight reach the bottom of the slope and there can leach into the profile, while the more polymerised organic matter compounds are delivered and deposited even before, on a higher segment of the slope in an aggregated form. This spatial difference appears below the uppermost tilled soil layer as well; referring the lower efficiency of conventional ploughing tillage in spatial soil homogenisation.

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“…The comparison of findings on the quantification of a single process in the global C balance proves to be difficult due to different research approaches used (field measurement or incubation experiment) and the combined effect of erosion mechanisms in the whole C cycle would be (Kirkels et al, 2014). The contribution of transport to the global C budget in an eroded site, was studied by many researchers through measurements of soil CO 2 emission at detachment, transport and deposition sites.…”

Section: Introductionmentioning

confidence: 99%

Understanding the role of soil erosion on co 2 -c loss using 13 c isotopic signatures in abandoned Mediterranean agricultural land

Novara

Keesstra

Cerdà

et al. 2016

Science of The Total Environment

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The fate of soil organic carbon upon erosion, transport and deposition in agricultural landscapes — A review of different concepts

Cited by 180 publications

References 80 publications

Modeling the Economic Value of Blue Carbon in Delaware Estuary Wetlands: Historic Estimates and Future Projections

Modeling the Economic Value of Blue Carbon in Delaware Estuary Wetlands: Historic Estimates and Future Projections

Redistribution of Soil Organic Carbon Triggered by Erosion at Field Scale Under Subhumid Climate, Hungary

Understanding the role of soil erosion on co 2 -c loss using 13 c isotopic signatures in abandoned Mediterranean agricultural land

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