| 降雨侵蚀力新算法在豫西山区应用的初步研究 |
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| 引用本文： | 续礼,姜小三,杨树江,张春平,潘剑君.降雨侵蚀力新算法在豫西山区应用的初步研究[J].土壤,2007,39(4):633-636. |
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| 作者姓名： | 续礼 姜小三 杨树江 张春平 潘剑君 |
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| 作者单位： | 1. 南京农业大学资源与环境科学学院,南京,210095
2. 淮河流域水土保持监测中心站,安徽蚌埠,233001 |
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| 基金项目： | 水利部淮河水利委员会资助项目 |
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| 摘 要： | 降雨侵蚀力是定量监测评价一个地区土壤侵蚀状况的重要因子之一,找到适宜简便的计算方法十分重要.卜兆宏提出的降雨侵蚀力新算法具有简便易用的优点.本文利用位于豫西山区鲁山县的3个水文雨量站10年185次的自记降雨过程资料,以经典算法年R值为基准,对新算法在该区的适用性进行了分析评价.结果表明:新算法结果与经典值存在高度的一致性,一致性高达90.2%,模型有效系数为96.4%,相对误差为7.7%,说明新算法能够在该区应用,可以采取此法对该区的降雨侵蚀力进行深入的分析研究;并同时对资料摘读时应该注意的问题进行了讨论.
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| 关 键 词： | 降雨侵蚀力 EI30法 R值新算法 土壤侵蚀 |
Application of a New Algorithm to Assessment of Rainfall Erosiveness in Mountaineous Regions in West Henan |
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| HU Xu-li,JIANG Xiao-san,YANG Shu-jiang,ZHANG Chun-ping and PAN Jian-jun.Application of a New Algorithm to Assessment of Rainfall Erosiveness in Mountaineous Regions in West Henan[J].Soils,2007,39(4):633-636. |
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| Authors: | HU Xu-li JIANG Xiao-san YANG Shu-jiang ZHANG Chun-ping and PAN Jian-jun |
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| Institution: | College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,Water & Soil Conversation Monitoring Central Station of The Huaihe River Bason, Bengbu, Anhui 233001, China,Water & Soil Conversation Monitoring Central Station of The Huaihe River Bason, Bengbu, Anhui 233001, China and College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China |
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| Abstract: | Rainfall erosiveness is a fundamental factor for quantative monitoring and assessment of soil erosion. So it is very important to identify a convenient model or algorithm for assessing rainfall erosiveness. Based on 185 individual rainfalls at three stations in 10 years, R-value was calculated with EI30 and a new algorithm proposed by Bu Zhao-hong, separately. Results showed that the latter suits the region well. Further study of R-value of the region can be carried out by this way. Meanwhile, some issues that should be paid attention to in collecting data were put forward. |
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| Keywords: | Rainfall erosivity EI_(30) New algorithms of R_value Soil erosion |
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