| 不同样本序列下侵蚀性雨量标准的研究 |
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| 引用本文： | 金建君,谢云,张科利.不同样本序列下侵蚀性雨量标准的研究[J].水土保持通报,2001,21(2):31-33. |
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| 作者姓名： | 金建君 谢云 张科利 |
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| 作者单位： | 1. 华东师范大学
2. 北京师范大学资源与环境科学系, |
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| 基金项目： | 国家杰出青年基金土壤侵蚀预报模型研究(49725103) |
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| 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 196 2— 196 9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。
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| 关 键 词： | 样本序列 侵蚀性雨量标准 |
| 文章编号： | 1000-288X(2001)02-0031-03 |
| 收稿时间： | 2000/12/28 0:00:00 |
| 修稿时间： | 2000年12月28 |
A Study on Erosive Rainfall Standards Based on Different Sample Sizes |
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| JIN Jianjun,XIE Yun and ZHANG Keli.A Study on Erosive Rainfall Standards Based on Different Sample Sizes[J].Bulletin of Soil and Water Conservation,2001,21(2):31-33. |
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| Authors: | JIN Jianjun XIE Yun and ZHANG Keli |
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| Institution: | JIN Jian jun 1,XIE Yun 1,ZHANG Ke li 2 |
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| 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 values of erosive rainfall standards were studied. To get the stable rainfall standard,large samples were 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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| Keywords: | samples sizes erosive rainfall standard |
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