Distribution of fallout radionuclides (7Be, 137Cs, 210Pb and 239,240Pu) in soils of Taiwan

被引：66

作者：

Huh, CA ^{[1
]}

Su, CC ^{[1
]}

机构：

[1] Acad Sinica, Inst Earth Sci, Taipei 115, Taiwan

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2004年 / 77卷 / 01期

关键词：

fallout; Radionuclides; Be-7; (CS)-C-137; Pb-210; Pu-231; Pu-240; soils; Taiwan; erosion;

D O I：

10.1016/j.jenvrad.2004.03.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Depth profiles and cumulative deposition of four fallout radionuclides (Be-7, Cs-137, Pb-210 and Pu-239,Pu-240) were determined in presumably undisturbed soils in Taiwan. Inventories of these radionuclides in different areas correlate significantly with each other (except (7)Bc) and with mean annual rainfall, providing a necessary condition for the development of soil erosion studies in Taiwan. However, the data show very large spatial variability between and within landscape units, reflecting the steep topographic and meteorological gradients in the island. Thus, the application of fallout radionuclides to study soil conservation in Taiwan is expected to be a demanding task; it will call for dense sampling even at undisturbed reference sites. (C) 2004 Elsevier Ltd. All rights reserved.

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页码：87 / 100

页数：14

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