文章基本信息

标题：Study of hanging valley in loess-paleosoil sediments with soil erosion assessment using nuclear and erosion potential methods
本地全文：下载
作者：Kalkan Kristina S. ; Forkapić Sofija M. ; Marković Slobodan B. 等
期刊名称：Nuclear Technology and Radiation Protection
印刷版ISSN：1451-3994
出版年度：2022
卷号：37
期号：1
页码：65-77
DOI：10.2298/NTRP2201065K
语种：English
出版社：VINČA Institute of Nuclear Sciences
摘要：This paper is dealing with soil erosion assessment using two different approaches: nuclear model and erosion potential method, also known as Gavrilovic's method. Complex valley systems on Titel Loess Plateau were selected for investigation. Radiocaesium is favored in many studies as an optimal erosion tracer due to its relatively long half-life, negligible renewal in the environment and strongly binding ability onto soil particles. The use of gamma-spectrometry in environmental testing laboratories acts as a precise and fast measurement technique for determination of 137Cs activity concentrations, without the need for complicate preparation of samples. Annual erosion and deposition rates were estimated according to three conversion models for uncultivated land: the profile distribution model with two years of dominant fallout of 137Cs (1963 and 1986) and the diffusion and migration model using WALLING software. The applied nuclear models were validated by comparison with erosion potential model which is the most relevant empirical model for erosion processes in torrent valleys. The obtained results indicate a good agreement with overall low values of average annual soil erosion rates on all soil profiles in the investigated area. Correlation analysis has determined the different influence of slope, terrain curvature, and vegetation index on the erosion models.