Use of ^(137)Cs and ^(210)Pb_(ex) fallout radionuclides for spatial soil erosion and redistribution assessment on steeply sloping agricultural highlands

作     者：Jung-Hwan YOON Young-Nam KIM Kye-Hoon KIM M.B.KIRKHAM Hyuck Soo KIM Jae E.YANG Jung-Hwan YOON;Young-Nam KIM;Kye-Hoon KIM;M.B.KIRKHAM;Hyuck Soo KIM;Jae E.YANG

作者机构：Kangwon Institute of Inclusive TechnologyKangwon National UniversityChuncheon 24341Republic of Korea Department of Biological EnvironmentKangwon National UniversityChuncheon 24341Republic of Korea Institute of Agriculture and Life ScienceGyeongsang National UniversityJinju 52828Republic of Korea Department of Environmental HorticultureUniversity of SeoulSeoul 02504Republic of Korea Department of AgronomyKansas State UniversityManhattanKS 66506-0110USA 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2021年第18卷第11期

页      面：2888-2899页

核心收录：

学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0815[工学-水利工程] 

基　　金：This research was supported in part by Research Grant from Kangwon National University(No.520160156:2016) the Korea Ministry of Environment,with the strategic EcoSSSoil Project,KEITI(Korea Environmental Industry and Technology Institute),Korea(Grant No.2019002820004) 

主　　题：Soil erosion Steep highland Fallout radionuclide ^(137)Cs ^(210)Pb_(ex) USLE 

摘      要：The steeply sloping agricultural highlands in Korea have severe soil *** of both soil erosion and sedimentation in these highlands is necessary to make plans for soil-conservation measures,but it is not feasible using existing soil-erosion *** study measured the site-specific concentrations of ^(137)Cs and ^(210)Pb_(ex) on both a highland slope(33%slope)and a reference site(undisturbed flat area)to estimate soil erosion and *** use of the fallout radionuclide(FRN)method was evaluated to see if it is a suitable method for characterizing soil *** were compared with those obtained with the Universal Soil Loss Equation(USLE),which is an empirical model that estimates annual soil *** average concentrations of ^(137)Cs and ^(210)Pb_(ex) at the reference site were 11.57±0.24 Bq kg^(-1) and 59.74±4.2 Bq kg^(-1),*** of ^(137)Cs and ^(210)Pb_(ex) in the experimental slope were 16.4%and 10.8%,respectively,of those at the reference *** inventories were lower at the upper point of the slope than those at the basal point of the *** of ^(137)Cs and ^(210)Pb_(ex) were significantly correlated with available phosphorus,organic matter,CEC,and exchangeable *** of soil redistribution rate using ^(137)Cs and ^(210)Pb_(ex) showed site-specific variations at different points along the slope,and respective ranges were^(-1)7.46~-207.51 and 1.55~-581.38 Mgha^(-1) yr^(-1),which indicated that more erosion was assessed by ^(210)Pb_(ex) than by ^(137)*** analysis showed that soil erosion occurred along the entire slope,except for the bottom point of the slope where 1.55 Mgha^(-1) yr^(-1) of sediment *** USLE provided a single value of the average annual soil loss in the entire slope,which was either 166 or 398 Mgha^(-1) yr^(-1),depending on the soil erodibility factor(soil series factor and calculated factor from soil sample analysis)used in t