| 核素比率在土壤侵蚀区的应用探讨--以210Pbex/137Cs为例 |
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| 引用本文： | 高明. 核素比率在土壤侵蚀区的应用探讨--以210Pbex/137Cs为例[J]. 水土保持研究, 2006, 13(2): 147-149,171 |
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| 作者姓名： | 高明 |
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| 作者单位： | 南京师范大学地理科学学院,南京,210097 |
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| 基金项目： | “应用Cs-137等核示踪元素测定坡耕地土壤侵蚀量的研究”(项目编号2005105HX1B44J) |
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| 摘 要： | 环境放射性核素7B e、137C s和210Pb为测量土壤侵蚀和沉积速率提供了一种重要的方法。在某些情况下,由于受各种因素的影响,单一核素进行示踪研究很难精确测量,而核素比率的方法作为有益的补充,能够精确测量土壤侵蚀量的多少。这篇文章介绍W a llbrink和M urray在S t.H e lens森林区用210Pbex/137C s方法测量土壤侵蚀的情况,了解国外的研究动态,对此也提出在应用核素比率法中应注意的问题和展望。
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| 关 键 词： | 核素比率 土壤侵蚀 210Pbex/137Cs法 |
| 文章编号： | 1005-3409（2006）02-0147-03 |
| 收稿时间： | 2005-05-27 |
| 修稿时间： | 2005-05-27 |
Study on the Inventory Ratio of Radionuclides in Soil Erosion--With 210Pbex/137Cs as an Example |
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| GAO Ming. Study on the Inventory Ratio of Radionuclides in Soil Erosion--With 210Pbex/137Cs as an Example[J]. Research of Soil and Water Conservation, 2006, 13(2): 147-149,171 |
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| Authors: | GAO Ming |
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| Affiliation: | Geography College of Nanjing Normal University, Nanjing 210097 China |
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| Abstract: | The environmental radionuclides ~7Be,~(137)Cs and ~(210) Pb for documenting soil erosion and sendiment rates provides an important method.However there are environments in which it is difficult for only one radionuclide to document soil erosion accurately because of other factors. Using the inventory ratio of excess ~(210) Pb to ~(137) Cs to measure soil loss accurately is complementary method.It describes that Wallbrink and Murray use the inventory ratio of excess ~(210) Pb to ~(137) Cs to measure soil loss in St.Helens forest,know abroad study on recent progress,and provide good suggestion on this method. |
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| Keywords: | ratio of radionuclides soil erosion ~(210)Pb_(ex)/~(137)Cs |
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