A global review of sediment source fingerprinting research incorporating fallout radiocesium (137Cs)
نویسندگان
چکیده
منابع مشابه
Sediment fingerprinting to determine the source of suspended sediment in a southern Piedmont stream.
Thousands of stream miles in the southern Piedmont region are impaired because of high levels of suspended sediment. It is unclear if the source is upland erosion from agricultural sources or bank erosion of historic sediment deposited in the flood plains between 1830 and 1930 when cotton farming was extensive. The objective of this study was to determine the source of high stream suspended sed...
متن کاملSource Fingerprinting of Sediment Deposited in the Dam Reservoir: A Case of Lavar Dam Watershed, Fin, Hormozgan Province
Extended abstract 1. Introduction Soil erosion is a major environmental threat worldwide. This three-stage process including detachment, transportation and sedimentation of soil particle by runoff affects natural and agricultural areas of Iran. Soil erosion has many off-site and on-site effects such as sediment deposition in the lake of dam and channels, transportation of nutrients and contam...
متن کاملRiparian forest potential to retain sediment and carbon evaluated by the 137Cs fallout and carbon isotopic ratio techniques.
Riparian forests can provide an important service for aquatic ecosystems by sequestering hillslopederived sediments. However, the width of a riparian buffer zone required to filter sediments is not yet wellunderstood. Here are used two complementary tracers to measure sediment retention. The 137Cs technique and the soil carbon isotopic ratios (delta13C) are utilized to investigate sediment depo...
متن کاملSelecting Color-based Tracers and Classifying Sediment Sources in the Assessment of Sediment Dynamics Using Sediment Source Fingerprinting.
The use of sediment color as a fingerprint property to determine sediment sources is an emerging technique that can provide a rapid and inexpensive means of investigating sediment sources. The present study aims to test the feasibility of color fingerprint properties to apportion sediment sources within the South Tobacco Creek Watershed (74 km) in Manitoba, Canada. Suspended sediment from 2009 ...
متن کاملCarbon, cesium and iodine isotopes in Japanese cedar leaves from Iwaki, Fukushima
Japanese cedar leaves from Iwaki, Fukushima were analyzed for carbon, cesium and iodine isotopic compositions before and after the 2011 nuclear accident. The Δ14C values reflect ambient atmospheric 14C concentrations during the year the leaves were sampled/defoliated, and also previous year(s). The elevated 129I and 134,137Cs concentrations are attributed to direct exposure to the radioactive f...
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ژورنال
عنوان ژورنال: Geomorphology
سال: 2020
ISSN: 0169-555X
DOI: 10.1016/j.geomorph.2020.107103