First application of plutonium in soil erosion research on terraces

被引：8

作者：

Guan, Yong-Jing ^{[1
]}

Chen, Wu ^{[1
]}

Wang, Shen-Zhen ^{[1
,2
,3
]}

Hua, Yu-Xin ^{[1
]}

Jing, Qiao-Yan ^{[1
,2
,3
]}

Liu, Zhi-Yong ^{[2
,3
]}

Huang, Chun-Ping ^{[1
,2
,3
]}

Wang, De-Yu ^{[1
,2
,3
]}

Wang, Hui-Juan ^{[1
]}

He, Xian-Wen ^{[4
]}

De Cesare, Mario ^{[5
,6
,7
]}

Cui, Liang-Jia ^{[1
]}

He, Hua ^{[1
]}

Fan, Kai-Di ^{[1
]}

Guo, Zi-Chen ^{[1
]}

机构：

[1] Guangxi Univ, Sch Phys Sci & Technol, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China

[2] Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, State Key Lab Radiat Med & Protect, Suzhou 215123, Peoples R China

[3] Soochow Univ, Collaborat Innovat Ctr Radiat Med Jiangsu Higher E, Suzhou 215123, Peoples R China

[4] Radiat Environm Management & Monitoring Stn Guangx, Nanning 530222, Peoples R China

[5] CIRA Italian Aerosp Res Ctr, Dept Large Ground Testing Facil, I-81043 Capua, Italy

[6] Univ Campania Luigi Vanvitelli, Dept Math & Phys, I-81100 Caserta, Italy

[7] INFN Natl Inst Nucl Phys, Naples Sect, I-80126 Naples, Italy

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2023年 / 34卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Soil erosion; Plutonium; Cs-137; Tracer method; Terraces; GLOBAL FALLOUT; SPATIAL-DISTRIBUTION; CULTIVATED LAND; PU ISOTOPES; ICP-MS; CS-137; TRACER; RATES; DEPOSITION; PU239+240;

D O I：

10.1007/s41365-023-01210-6

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The spatial distributions of Pu239+240 and Cs-137 in soils from Longji Rice Terraces were investigated to evaluate soil erosion. The activity concentrations of Pu239+240 and Cs-137 in the surface soils of the paddy fields were in the range of 0.089-0.734 and 1.80-7.88 mBq/g, respectively. The activities of Pu239+240 and Cs-137 showed very similar distribution trends, first increasing and then decreasing with increasing elevation. The Pu-240/Pu-239 atom ratios in the surface soils ranged from 0.162 to 0.232. The activities of Pu239+240 and Cs-137 in the soil cores tended to be uniformly distributed within the plowed layer and declined exponentially below this depth. The mean soil erosion rates of Longji Rice Terraces estimated by Pu239+240 and Cs-137 tracer methods were 5.44 t/(ha center dot a) and 5.16 t/(ha center dot a), respectively, which demonstrated that plutonium can replace Cs-137 as an ideal tracer for soil erosion research in the future. Landform features are the main factors affecting the distribution of plutonium and Cs-137 as well as soil erosion in the Longji Rice Terraces.

引用

页数：13

共 70 条

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