A Study on Erosive Rainfall Standards Based on Different Sample Sizes

JIN Jianjun; XIE Yun; ZHANG Keli

doi:11894/1005-829x.2001.21(2).31

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A Study on Erosive Rainfall Standards Based on Different Sample Sizes

- A Study on Erosive Rainfall Standards Based on Different Sample Sizes
- Bulletin of Soiland Water Conservation Vol. 20, Issue 2, Pages: 31-33(2001)
- 作者机构：
  
  1. 华东师范大学河口海岸国家重点实验室,上海,200062
  2. 北京师范大学资源与环境科学系,北京,100875
- 作者简介：
- 基金信息：
- DOI：11894/1005-829x.2001.21(2).31
  CLC：
- Published：2001
- 稿件说明：
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JIN Jianjun, XIE Yun, ZHANG Keli. A Study on Erosive Rainfall Standards Based on Different Sample Sizes[J]. Bulletin of Soiland Water Conservation, 2001, 20(2): 31-33.
DOI：

JIN Jianjun, XIE Yun, ZHANG Keli. A Study on Erosive Rainfall Standards Based on Different Sample Sizes[J]. Bulletin of Soiland Water Conservation, 2001, 20(2): 31-33. DOI： 11894/1005-829x.2001.21(2).31.

摘要

侵蚀性降雨标准可以将发生侵蚀和不发生侵蚀的降雨区分开来，但它的拟定需要基于一定的降雨样本。利用黄河流域子洲径流实验站1962-1969年降雨径流观测资料，分析了不同样本年数与拟定的侵蚀性雨量标准的关系，结果表明，足够多的样本数才能保证雨量标准的稳定性，但考虑到资料的易获得性和计算的工作量，5a序列的观测资料，已经满足拟定侵蚀性雨量标准的要求。

Abstract

Erosive rainfall standard

which can pick out erosive rainfall from all rainfall events

has to be determined based on the rainfall samples. How the sample size influences the erosive rainfall standard has not been reported yet. According to the rainfall and runoff data during 1962-1969 attained from Zizhou experiment station in the Yellow river basin

the effects of sample size on the valuesof erosive rainfall standards were studied. To get the stable rainfall standard

large sampleswere needed. But considering the data available and not too much work

5- year data were enough for determining the erosive rainfall standard.

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