editedbook
Publication: IIP Proceedings Year: 2022, Month: November Page No: 232-249, ISSN/ISBN: 978-93-95632-65-2, DOI/Link: https://www.rsquarel.org/assets/docupload/rsl202332CEE740CA4188D.pdf
RECENT ADVANCES IN RADIOTRACER TECHNIQUES FOR SOIL EROSION AND SEDIMENTATION STUDIES
Area/Stream: Agriculture Engineering & Food Sciences, Authors: Moumita Ash, Plabani Roy Keywords: Fallout radionuclides (FRNs), simple proportional model (PM), mass balance models (MBMs), USLE Book Name /series: Futuristic Trends in Agriculture Engineering & Food Sciences, Volume 2, Book 9, Chapter 17Publication: IIP Proceedings Year: 2022, Month: November Page No: 232-249, ISSN/ISBN: 978-93-95632-65-2, DOI/Link: https://www.rsquarel.org/assets/docupload/rsl202332CEE740CA4188D.pdf
Abstract:
Globally, soil degradation driven by erosion is a severe hazard to food production and ecosystem services. Approximately 95 million hectares of land are affected by soil erosion in India. Therefore, it is the need for an hour to assess the extent and rates of soil erosion. This chapter explains how fallout radionuclides (FRNs), such as 137Cs, 7Be, 210Pb excess, etc., are useful for studying soil erosion rate. This method can provide retrospective data on erosion/deposition rates and spatial patterns of soil redistribution over short-term (a few days), medium-term (decades), and long-term (centuries) periods. These radioactive inventory data were converted into quantitative estimates of erosion and deposition rates using a variety of theoretical models. Different models, including basic proportional models (PM) and mass balance models (MBM), are extensively employed and require the inclusion of all the crucial factors influencing how these FRNs are distributed in the soil profile. Mass balance model- 3 (MBM-3) is regarded as one of the best models because it also accounts for soil redistribution caused by tillage erosion. In general, the spatial patterns of soil redistribution provided by 137Cs and soil- morphological techniques are comparable. However, the USLE-based model provides accurate estimates of sediment mobilization from slopes but does not adequately represent the spatial pattern of soil redistribution because it does not account for within-slope redeposition. For further validation of the use of the radiotracer technique in different landscapes and land uses, a large number of databases are required.
Cite this: Moumita Ash, Plabani Roy,"RECENT ADVANCES IN RADIOTRACER TECHNIQUES FOR SOIL EROSION AND SEDIMENTATION STUDIES", Futuristic Trends in Agriculture Engineering & Food Sciences, Volume 2, Book 9, Chapter 17, November, 2022, 232-249, 978-93-95632-65-2, https://www.rsquarel.org/assets/docupload/rsl202332CEE740CA4188D.pdf
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