Use of a 137Cs re-sampling technique to investigate temporal changes in soil erosion and sediment mobilisation for a small forested catchment in southern Italy

Porto, Paolo; Walling, D. E.; Alewell, Christine; Callegari, Giovanni; Mabit, Lionel; Mallimo, Nicola; Meusburger, Katrin; Zehringer, Markus

doi:10.1016/j.jenvrad.2014.08.007

Cited by 50 publications

(28 citation statements)

References 27 publications

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“…Some of the highly used radionuclides include; 137 Cs, 210 Pb and 7 Be (Dercon et al, 2012;Porto et al, 2014a). In applying these nuclides, selection of a reference site is of critical importance.…”

Section: Fallout Radionuclides (Frns)mentioning

confidence: 99%

“…If the 137 Cs activity is lower than that of reference site, this signifies erosion. On the other hand, if the 137 Cs activity value is higher than that of the reference site, it signifies that soil deposition has taken place (Othman and Ismail, 2012;Porto et al, 2014a). Mostly, in natural uncultivated soils, the distribution of 137 Cs has an exponential decline with soil depth.…”

Section: The Use Of 137 Cs In Soil Erosion and Deposition Studiesmentioning

confidence: 99%

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A review of radiometric analysis on soil erosion and deposition studies in Africa

et al. 2018

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Soil erosion is one of the main soil degradation phenomena that threaten sustainable use of soil productivity thus affecting food security. In addition, it leads to reservoir storage capacity loss because of sedimentation. This not only affects water quantity but also water quality. Worldwide, annual loss in reservoir storage capacity due to sedimentation is 0.5 to 1%. Similarly, about 27% of land in Africa is largely degraded by erosion. As a result, there is need to minimize soil erosion and deposition through site specific estimation of soil erosion and deposition rates in the reservoirs. To achieve this, Fallout RadioNuclides (FRNs) are some of the methods in use. The most common radionuclides include; 137 Cs, 210 Pb and 7

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Section: Fallout Radionuclides (Frns)mentioning

confidence: 99%

Section: The Use Of 137 Cs In Soil Erosion and Deposition Studiesmentioning

confidence: 99%

A review of radiometric analysis on soil erosion and deposition studies in Africa

et al. 2018

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“…This approach is based on a temporal comparison of the FRN inventories measured at the same site in different times (Kachanoski and de Jong, 1984). It does not require the selection of reference sites because the inventory documented by the initial sampling campaign is used as the reference inventory for that point (Porto et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…A suitable test for significant differences should confirm or reject the hypothesis of 137 Cs total inventory stability over time. If the potential causes of variation (A to D) do not apply, the site is not suitable for the traditional FRN approach, but a repeated sampling approach could still be used to assess soil redistribution rates based on FRN methods (Porto et al, 2014;Kachanoski and de Jong, 1984).…”

Section: Node 3: Temporal Variation In Frn Total Inventorymentioning

confidence: 99%

Decision support for the selection of reference sites using <sup>137</sup>Cs as a soil erosion tracer

Arata

Meusburger

Bürge

et al. 2017

SOIL

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Abstract. The classical approach of using 137 Cs as a soil erosion tracer is based on the comparison between stable reference sites and sites affected by soil redistribution processes; it enables the derivation of soil erosion and deposition rates. The method is associated with potentially large sources of uncertainty with major parts of this uncertainty being associated with the selection of the reference sites. We propose a decision support tool to Check the Suitability of reference Sites (CheSS). Commonly, the variation among 137 Cs inventories of spatial replicate reference samples is taken as the sole criterion to decide on the suitability of a reference inventory. Here we propose an extension of this procedure using a repeated sampling approach, in which the reference sites are resampled after a certain time period. Suitable reference sites are expected to present no significant temporal variation in their decay-corrected 137 Cs depth profiles. Possible causes of variation are assessed by a decision tree. More specifically, the decision tree tests for (i) uncertainty connected to small-scale variability in 137 Cs due to its heterogeneous initial fallout (such as in areas affected by the Chernobyl fallout), (ii) signs of erosion or deposition processes and (iii) artefacts due to the collection, preparation and measurement of the samples; (iv) finally, if none of the above can be assigned, this variation might be attributed to "turbation" processes (e.g. bioturbation, cryoturbation and mechanical turbation, such as avalanches or rockfalls). CheSS was exemplarily applied in one Swiss alpine valley where the apparent temporal variability called into question the suitability of the selected reference sites. In general we suggest the application of CheSS as a first step towards a comprehensible approach to test for the suitability of reference sites.

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“…As pesquisas são conduzidas em diferentes usos como: pastagens (STRUNK, 2003;INACIO et al, 2007;. PAR-FITT, 2013); em áreas de fl orestas (STRUNK, 2003;MORGAN, 2005;MOHAMMAD & MOHAMMAD 2010;PORTO, 2014); em refl orestamento de eucalipto (ZHOU et al, 2002;FERNÁNDEZ 2004;PIRES, 2006); em áreas de agricultura (RICHTER, & NEGEN-DANK, 1997;CASSOL & LIMA, 2003;MORENO et al, 2011, BREMENFELD et al, 2013.…”

Section: Introductionunclassified

Perda De Solo Em Estradas Rurais Em Área De Cultivo De Tabaco Na Bacia Do Arroio Boa Vista- Paraná

Antoneli

Thomaz

2016

Rev. Bras. Geomorfol.

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O objetivo desta pesquisa foi mensurar a perda de solos em estradas rurais na Bacia do Arroio Boa Vista no município de Guamiranga Paraná. A área de estudos é ocupada por pequenas propriedades agrícolas, com 85% da área utilizada para o cultivo do tabaco (Nicotiana tabacun). O cultivo desta Salanaceae é realizado de setembro a março indicando variação nas atividades agrícolas na região, com períodos de intensificação de atividade (safra) e redução das atividades (entressafra). Esta variação nas atividades pode interferir nas perdas de solo nas estradas. Para avaliar as perdas de solo das estradas foram instaladas 6 parcelas de 600 m2 e, em cada uma foi construída uma caixa de contenção nas margens das estradas para deposição de sedimentos. Foi mensurada também a perda de solos dos barrancos por meio da instalação 14 parcelas de pinos de erosão com um total de 140 pinos. O monitoramento foi realizado durante um ano, sendo avaliado período de safra e entresafra. A perda média de solo foi de 27,6 kg/m2/ano. Deste total 4,9 kg/m2/ano (17,8%) foi produzido pelos barrancos e 22,7 kg/m2/ano (82,2%) oriundo do leito das estradas. Cerca de 68,2% da perda de solo foram registradas nos períodos de intensificação das atividades agrícolas (setembro a março), enquanto que 32,8% das perdas foram registradas nos períodos de entre safra.

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Use of a 137Cs re-sampling technique to investigate temporal changes in soil erosion and sediment mobilisation for a small forested catchment in southern Italy

Cited by 50 publications

References 27 publications

A review of radiometric analysis on soil erosion and deposition studies in Africa

A review of radiometric analysis on soil erosion and deposition studies in Africa

Decision support for the selection of reference sites using <sup>137</sup>Cs as a soil erosion tracer

Perda De Solo Em Estradas Rurais Em Área De Cultivo De Tabaco Na Bacia Do Arroio Boa Vista- Paraná

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Use of a 137Cs re-sampling technique to investigate temporal changes in soil erosion and sediment mobilisation for a small forested catchment in southern Italy

Cited by 50 publications

References 27 publications

A review of radiometric analysis on soil erosion and deposition studies in Africa

A review of radiometric analysis on soil erosion and deposition studies in Africa

Decision support for the selection of reference sites using &lt;sup&gt;137&lt;/sup&gt;Cs as a soil erosion tracer

Perda De Solo Em Estradas Rurais Em Área De Cultivo De Tabaco Na Bacia Do Arroio Boa Vista- Paraná

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Decision support for the selection of reference sites using <sup>137</sup>Cs as a soil erosion tracer