Using Cs-137 measurements and RUSLE model to explore the effect of land use changes on soil erosion and deposition rates in a mid-sized catchment in southern Italy  

作　　者：Paolo Porto Giovanni Callegari Abid Ouadja Ernesto Infusino 

机构地区：[1]Department of Agraria,University Mediterranea of Reggio Calabria,89123 Reggio Calabria,Italy [2]Faculty of Geographical Sciences,Kazimierz Wielki University,85-033 Bydgoszcz,Poland [3]Consiglio Nazionale delle Ricerche(CNR)-Istituto per i Sistemi Agricoli e Forestali del Mediterraneo(ISAFOM),Italy [4]Department of Agronomy,University of Mascara,BP305,29000 Mascara,Algeria [5]UNICAL-Dipartimento di Ingegneria per l'Ambiente,Territorio e Ingegneria Chimica(DIATIC),Italy

出　　处：《International Journal of Sediment Research》2024年第2期167-177,共11页国际泥沙研究（英文版）

摘　　要：In some areas of southern Italy,the change in land use over the last 4-5 decades has increased pressure on land and water resources and caused different forms of soil degradation.In order to mitigate the magnitude of soil erosion,different strategies that include construction of flood control structures and reforestation programs have been done in several areas.However,quantifying the effectiveness of these strategies is difficult in absence of direct measurements of soil erosion.To cover this information gap,the use of distributed numerical models coupled with measurements of the radionuclide cesium-137(137cs)offers a good alternative to the classic experimental sites(plot,catchments)that,on the contrary,require long term datasets to produce reliable estimates of soil ioss In this paper,measurements of i37cs in a floodplain area are firstly described for a representative Calabrian catchment as an example to reconstruct the trend of soil deposition rates during the last six decades.These measurements have been integrated with estimates of soil loss obtained with the Revised Universal Soil Loss Equation(RUSLE)model for which land use maps of different periods are available.The final comparison between estimates of soil erosion provided by the RUSLE at catchment scale and sedimentation rates derived from 137cs measurements on depositional areas allowed interesting information on the trend of soil erosion and deposition rates in these areas to be obtained.

关 键 词：Soil loss Sediment deposition Revised Universal Soil Loss Equation(RUSLE) Cesium-137 ITALY 

分 类 号：S157.1[农业科学—土壤学]