Preliminary study on adaptability of rainfall erosivity model to different regions
HU Xu-Li-；Jiang-Xiao-San-；Yang-Shu-Jiang-；Zhang-Cheng-Jun-；Bo-Jian-Jun
1.College of Resources & Environmental Sciences,NJAU,210095,Nanjing,; 2.Water & Soil Conversation Monitoring Central Station of The Huaihe River Basin,230003,Bengbu,Anhui;3.Beijing Academy of Agriculture and Forestry Science,100081,Beijing:China
Abstract：Rainfall erosivity is a fundamental factor for quantitative monitoring and assessment of soil erosion.So it is very important to find a convenient model of rainfall erosivity algorithms.Based on 392 individual rainfalls in 26 years of two areas,that is Lushan County in the Henan Province and Yanqing County in Beijing（municipality） respectively,R-value was calculated with EI30.According to the EI30 value,the new algorithms of R,proposed by Bu Zhaohong,was validated.Meanwhile,a review of other models was given.Results showed that discrepancy of the two models result was very small in the assessment of year R-value.It can be used not only in the two studied regions but also in others with high precision.Consistent evaluation criterion may be founded according to the model on the estimating yearly R-value in water erosion area in China.This is significant to realize the soil erosion monitoring and forecasting periodically and publish bulletin at a large scale.
胡续礼1,2；姜小三1；杨树江2；张成军3；潘剑君1. 降雨侵蚀力简易算法地区适用性的初步探讨c[J]. 中国水土保持科学, 2006, 4(5): 44-49.
HU Xu-Li-；Jiang-Xiao-San-；Yang-Shu-Jiang-；Zhang-Cheng-Jun-；Bo-Jian-Jun. Preliminary study on adaptability of rainfall erosivity model to different regions. SSWCC, 2006, 4(5): 44-49.
2006, Vol. 4 
