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Study of the Cesium-137 Reference Inventory in the ...

Soil erosion is a serious environmental problem closely associated with sustainable development and ultimately the survival of mankind. Cesium-137, a unique artificial radioactive tracer, has been widely applied to the study of soil erosion and deposition since the 1960s.

Erosion and deposition in a field/forest system estimated ...

OSTI.GOV Journal Article: Erosion and deposition in a field/forest system estimated using cesium-137 activity

Glossary of Metals

Naturally occurring cesium occurs in the environment mostly from the erosion and weathering of rocks and minerals. The mining and milling of certain ores can also release cesium to the air, water, and soil. The level of cesium in air and water is usually low.

(PDF) Césium-137 et érosion des sols - ResearchGate

The mean erosion rates are respectively between 8 and 14 t.ha-1.yr-1 and between 18 and 41 t.ha-1.yr-1 using 137Cs models. Using 210Pbexc model, the …

Improved Models for Estimating Soil Erosion Rates from ...

Mar 01, 1999· Fallout cesium-137 (137 Cs) measurements have been used in investigations of water-induced soil erosion in a wide range of environments and in many different areas of the world over the past 20 yr.However, the existing calibration procedures commonly used for deriving quantitative estimates of soil redistribution rates from 137 Cs measurements involve several …

(PDF) Estimates of soil erosion using cesium-137 tracer ...

Estimates of soil erosion using cesium-137 tracer models. Download. Related Papers. Distributions of 210 Pb around a uraniferous coal-fired power plant in Western Turkey. By Aysun Uğur. Soil erosion determinations by using 137 Cs technique in the agricultural regions of Gediz Basin, Western Turkey.

Use of magnetic tracer and radio-cesium methods to ...

Highlights Past soil erosion rates were measured using a cesium-137 and fly ash methods. The fly ash and cesium-137 levels on a stable cropland summit were determined. This reference site was used as a baseline and then compared with cropland. The highest predicted cropland erosion rates were on the backslope. The erosion rates were above the tolerable soil loss …

137Cs finger technique for erosion and ...

Jan 25, 2012· 137Cs is an artificial radionuclide with a half -life of 30.2 years, which was released into the environment as a byproduct of atmospheric testing of nuclear weapons during the period of 1950s to 1970s with a peak deposition in 1963. 137Cs fallout was strongly and rapidly adsorbed by soil particles when it deposited on the ground mostly with precipitation. Its …

Simulation of Sediment and Cesium Transport in the Ukedo ...

cesium deposited on the land surface, via soil erosion and sediment transport in rivers. Therefore, we simulated the sediment and cesium transport in the Ukedo River and its tributaries in Fukushima Prefecture, including the Ogaki Dam Reservoir, and the Ogi Dam Reservoir of the Oginosawa River in ...

Use of magnetic tracer and radio-cesium methods to ...

The cesium-137 and fly ash data suggests that cropland lost significant sediment, fly ash and cesium-137 to erosion process especially from the upper and lower backslopes and footslope. The amount and rate of erosion predicted for each cropland landscape position using the fly ash and cesium-137 methods were determine for the 1910 to 1960, 1960 ...

Assessment of erosion rates and patterns from spatial ...

Soil erosion predictions and mapping of erosion patterns are important for developing the corresponding management strategies to deal with soil erosion. This research was conducted; (i) to determine cesium sorption and desorption characteristics in soils, (ii) to develop a depth dependent model for predicting soil erosion from $/sp{137}{/rm Cs ...

How is erosion affecting the recovery of the Fukushima ...

Mar 01, 2021· The expected reduction of radioactive Cesium due to erosion is far smaller than the natural decay of radioactive Cesium. Why is sediment and Cesium discharge from forests in Fukushima so small and where has deposited Cesium gone? Simulation of soil loss with GIS in the forests of Iitate village suggested sediment sources in the forest were limited.

Cesium (Cs)-137 in Erosion and Deposition Analysis []

Oct 14, 2013· Cesium (Cs)-137 in Erosion and Deposition Analysis. Written by Grant Hamilton Cs-137. Cs-137 is a radioactive isotope of cesium. Its occurrence is the result of anthropogenic nuclear fission. Most of the Cs-137 present in the environment is the result of fallout from nuclear weapons testing during the Cold War. Cs-137 first reached detectable ...

Assessment of soil erosion and deposition rates in a ...

In Morocco land degradation - mainly caused by soil erosion - is one of the most serious agroenvironmental threats encountered. However, only limited data are available on the actual magnitude of soil erosion. The study site investigated was an agricultural field located in Marchouch (6°42' W, 33° 4 …

cesium_cesium_cesium____ …

The Preparation of Merrifield‐Resins Through Total Esterification With Cesium Salts Application of radioactive fallout cesium-137 for measuring soil erosion and sediment accumulation rates and patterns: a review. Glissin V, Crkvenjakov R, and Byus C. Ribonucleic acid isolated by cesium chloride centrifugation. Biochemistry 13: 2633-2637

Application of caesium (cesium) -137 in soil erosion and ...

Application of Cs-137 in soil erosion and sedimentation studies. What is caesium-137? As the expression indicated, caesium-137, cesium-137, or Cs-137 is one of radioisotopes of caesium with a nominal atomic mass of 137. It is an artificial radionuclide with a half-life of 30 years or so, which was released into the stratosphere by the testing of above ground thermonuclear …

Page SECTION 4. SEDIMENT TRANSPORT AND DEPOSITION

Soils of the world are labeled with cesium-137 as a result of fallout from nuclear tests. The radioactive cesium moves with the clay because it is tightly adsorbed. Therefore measurements of the redistribution of radioactive cesium can be used to estimate erosion and sediment deposition rates.

Soil erosion study on hillside in Southern Jiangsu ...

soil erosion thickness for certain years and H is the thickness of the soil depth where 137Cs could be detect­ ed. Solving the above two equations, the function describing the relationship between the depth of soil erosion and the loss of i37Cs inventory may be obtained. This model enable to estimate the soil erosion rate.

News Release | Soil Science Society of America

Mar 01, 2021· How is erosion affecting the recovery of the Fukushima area? Radioactive Cesium expected to be contained in the forest. March 1, 2021 – March 11, 2021 will be the 10 th anniversary of the earthquake and tsunami that caused the meltdown of the Fukushima Daiichi Nuclear Power Plant. This meltdown had immediate and long-term impacts on the area.

137 Cs estimates of soil erosion rates in a small ...

Channelization significantly affects soil erosion in river floodplains. The object of this study was to use 137 Cs as a tracer to determine the 137 Cs inventory and derived soil erosion rates under various land use types in a catchment on channelized river floodplain in the lower reaches of Yangtze River, China. Sampling was carried out to establish a 137 Cs reference inventory in a …

U.S. Department of the Interior U.S. Geological Survey ...

that originates from erosion of surficial cultivated soils and by vertical erosion of streambank material determined from excess lead-210, cesium-137, and beryllium-7, and stream hydrograph.....18 8. Model estimates of the fraction of suspended-sediment in the Wild Rice River at Hendrum, Minnesota,

A case-study on history and rates of gully erosion in ...

We chose a study area with landforms and land-use history typical for the central Mollisol region of Northeast China to estimate the initiation years and rates of gully erosion from 1968 to 2018 using aerial and satellite imageries. The outlet fan deposits of a large gully system were dated by Cesium-137 (137 Cs) and artifacts. Local farmers ...

Soil erosion and sediment sources in an Ohio watershed ...

Soil erosion and sediment sources in an Ohio watershed using beryllium-7, cesium-137, and lead-210. Matisoff G(1), Bonniwell EC, Whiting PJ. Author information: (1)Department of Geological Sciences, Case Western Reserve University, Cleveland, OH 44106, USA. [email protected]

Cesium, Chemical Element - reaction, water, uses, elements ...

Cesium-137 is often used in scientific research also. For example, cesium tends to stick to particles of sand and gravel. This fact can be used to measure the speed of erosion in an area. Cesium-137 is injected into the ground at some point. Some time later, a detector is used to see how far the isotope has moved.

Radioactive Cesium Technology for measuring Soil Erosion ...

Sep 26, 2019· Radioactive cesium technology is a more rapid and less expensive method for soil erosion studies in the severely intensive croplands. It gives more accurate results for all types of erosion studies including historic, comparative …

Using Nuclear Fallout to Measure Soil Erosion in Tunisia - Eos

Nov 05, 2020· 5 November 2020. After applying conventional methods to fight soil erosion, Tunisia is using cesium-137 (137 Cs) to measure their efficiency.The innovative program is fitting for a country where ...

Characteristics of radio-cesium transport and discharge ...

Apr 01, 2017· Soil erosion and radio-cesium mobilization into rivers occurs more readily from paddy fields than from forests, thus resulting in a high 137 Cs discharge ratio. The river with the second highest discharge ratio, the Kuma River, also shares these similarities with the Maeda basin. Its areas with highest fallout concentration lie in the central ...

(PDF) Césium-137 et études environnementales : exemple de ...

Most 137Cs movement in the environment is by physical processes; therefor, 137Cs is a unique tracer for studying erosion and sedimentation. Cesium-137 loss from a …

Soil erosion and its control in Chile - An o verview

Erosion is a deterioration of soil by the physical move-ment of soil particles. The most important erosion agents are wind and water; but in most instances these are im-p o r tant only after men, animals, insects, diseases or fi r e h a ve removed or depleted the soil cove r .

Cesium ( Cs) Properties, Health effects & Uses of Cesium

Cesium (Cs) is a chemical element in the periodic table with atomic number 55 discovered by Fustov Kirchhoff and Robert Bunsen in the year 1860. ... It occurs in environment mainly due to erosion and withering of rocks. Certain Facts About Cesium. Cesium has no biological importance and is not harmful to life.

Characterizing land surface erosion from cesium-137 ...

Characterizing land surface erosion from cesium-137 profiles in lake and reservoir sediments. Zhang X(1), Walling DE. Author information: (1)Institute of Mountain Hazards and Environment, PO Box 417, Chengdu, China. Recognition of the threat to the sustainable use of the earth's resources posed by soil erosion and associated off-site ...

Realtime Procedural Terrain Generation

Defining erosion The effects of erosion are difficult to describe mathematically: The term erosion covers many naturally occurring phenomena, and different ter-rain types and climates will produce many differ-ent kinds of changes to a landscape. For sim-plicity, a set of desirable traits (from a computer

Listing of publications | Cesium erosion related ...

Use of magnetic tracer and radio-cesium methods to determine past cropland soil erosion amounts and rates. Catena, 104, 103-110. Othman, Z., Ismail W.R. (2012). Using environmental radionuclide, 137 Cs to investigate soil re-distribution in an agricultural plot in Kalumpang, Selangor, Malaysia.

A case‐study on history and rates of gully erosion in ...

Jul 07, 2021· We chose a study area with landforms and land-use history typical for the central Mollisol region of Northeast China to estimate the initiation years and rates of gully erosion from 1968 to 2018 using aerial and satellite imageries. The outlet fan deposits of a large gully system were dated by Cesium-137 (137 Cs) and artifacts. Local farmers ...

Cesium erosion related publications (2012-2013 ...

Nov 03, 2012· Zupanc, V., Mabit, L., 2010. Nuclear techniques support to assess erosion and sedimentation processes: preliminary results of the use of …

IMPACTS OF LAND USE CHANGE FROM FOREST OR PRAIRIE TO ...

The fly ash and cesium-137 determined erosion amounts and annual soil erosion rate for cropland landscapes positions were highest for the upper and lower backslopes. Past backslope annual erosion rates for three different time periods were 5.1 Mt ha-1 yr-1 or less and below the tolerable soil loss rate of 11 Mt ha-1 yr-1 for Hickory soils.