| 巴江流域R值时空分布特征 |
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| 引用本文： | 刘蜀鄂,史正涛,雷琳,韩翠玲. 巴江流域R值时空分布特征[J]. 吉林水利, 2012, 0(3): 42-45 |
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| 作者姓名： | 刘蜀鄂 史正涛 雷琳 韩翠玲 |
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| 作者单位： | 云南师范大学旅游与地理科学学院 |
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| 基金项目： | “973”前期研究专项(2009CB426312);水利部公益项目(201001058) |
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| 摘 要： | 以巴江流域5个气象站的降雨资料为基础，运用DPS软件结合日、月降雨侵蚀模型分析了巴江流域降雨侵蚀力及其时空分布变化规律。结果表明：巴江流域降雨侵蚀力年际变化明显。最大年降雨侵蚀力是最小年降雨侵蚀力的3．6倍；降雨侵蚀力的年内变化与降雨量的年内变化情况基本一致，主要集中在5—10月，占全年降雨侵蚀力的91．53％；空间上呈北低南高分布，变化幅度西大东小。
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| 关 键 词： | 降雨侵蚀力 日雨量 时空分布 |
The feature of spatial and temporal distribution of R value in Ba river Basin |
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| Liu Shu-e,Shi Zheng-tao,Lei Lin,Han Cui-ling. The feature of spatial and temporal distribution of R value in Ba river Basin[J]. Jilin Water Resources, 2012, 0(3): 42-45 |
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| Authors: | Liu Shu-e Shi Zheng-tao Lei Lin Han Cui-ling |
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| Affiliation: | Liu Shu-e,Shi Zheng-tao,Lei Lin,Han Cui-ling |
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| Abstract: | Based on the rainfall data of five weather stations in Ba River basin,using DPS software combined with day,month rainfall erosion model,this paper analyses the rainfall erosivity and its spatial and temporal distribution variation in Ba River Basin.The results showed that: the rainfall erosion force of inter-annual changes significantly,the maximum annual rainfall erosivity is 3.6 times of the minimum;The annual variation of rainfall erosivity and rainfall is the same basically within the year,which mainly concentrated in May to October,accounting for 91.53% of the annual rainfall erosivity,and was low in the north and high in the south distribution,changing range was large in West and small in East. |
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| Keywords: | rainfall erosivity daily rainfall spatial and temporal distribution |
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