XU Li,XIE Yun,FU Su-hua,et al.Simple Method of Estimating Rainfall Erosivity Under Different Rainfall Amount of Beijing[J].Research of Soil and Water Conservation,2007,14(06):398-402.
北京地区降雨侵蚀力简易计算方法研究
- Title:
- Simple Method of Estimating Rainfall Erosivity Under Different Rainfall Amount of Beijing
- Keywords:
- rainfall erosivity; rainfall amount; soil erosion; Beijing
- 分类号:
- S157.1
- 摘要:
- 降雨侵蚀力反映降雨对土壤侵蚀影响的潜在能力。降雨侵蚀力经典算法所需的降雨过程资料较难获得，一般利用各种类型雨量资料建立降雨侵蚀力的简易算法，为模型的参数输入服务。利用北京10个水文站25年2 894次降雨过程资料。其中5个站点用于建立日、月、年降雨侵蚀力简易计算公式，另外5个站点用于模型检验。研究结果表明，不同类型雨量资料估算降雨侵蚀力的精度不同，用日或月雨量资料直接估算日或月降雨侵蚀力时，模型的误差较大。用日、月或年雨量估算年降雨侵蚀力时，模型的误差较小，约有一半的样本相对误差绝对值小于20%，3个模型相比，日雨量模型估算的平均相对误差最小。用日、月或年雨量估算多年平均年降雨侵蚀力时，模型的误差最小，所有样本的相对误差绝对值均小于20%，平均相对误差绝对值最小值只有0.8%，最大值小于7%，3个模型相比，日雨量模型的估算精度最高。因此在具体应用过程中可以根据资料的占有情况来决定相应的降雨侵蚀力估算模型。本研究结果可以为北京地区土壤侵蚀量估算和水土资源评价提供参数服务。
- Abstract:
- Rainfall erosivity can quantify the effect of raindrop impact and can also reflect the amount and rate of runoff likely to be associated with the rain.It is an important parameter in USLE and RUSLE.The value of rainfall erosivity for a given rainstorm equals the product of total storm energy (E) times the maximum 30-min intensity (I30).It requires the continuous record of rainfall data.But the continuous record of rainfall data is difficult to obtain.Researchers developed other equations instead of the rainfall kinetic energy.In this study data of 2 894 rainfall events in 25 years in 10 hydrology gauge stations were used.Data of 5 stations were used to develop empirical equations of rainfall erosivity, and the other data were used to test model.The precision estimating rainfall erosivity is different with various rainfall data.The absolute relative error of daily rainfall erosivity and monthly rainfall erosivity estimated by the daily rainfall erosivity model and monthly rainfall erosivity model is very high.The errors of the annual and average annual rainfall erosivity estimated by the three models are low, and absolute relative errors about half of data are less than 20%.In three models, the average relative error of annual erosivity estimated by daily rainfall model is the lowest.Absolute relative errors of estimating the average annual rainfall erosivity estimated by the three models are less than 20%, the lowest one is 0.8%, the highest is less than 7%.So the daily rainfall erosivity model is more accurate than the other two models on estimating annual rainfall erosivity and average annual rainfall erosivity.The results can be served as predicting soil loss and evaluating soil and water resources.
参考文献/References:
[1] Wischmeier, W H, Smith D D.Rainfall energy and its relationship to soil loss[J].Transactions of American Geophysical Union, 1958, 39 (2):285-291.
[2] Wischmeier W H.A rainfall erosion index for Universal soil loss equation[J].Soil Science Society Proceedings, 1959, 23 (3):246-249.
[3] Wischmeier W H, Smith D D.Predicting rainfall erosion losses:A guide to conservation planning[M].U.S.Dep.Agric., Agric.Handb.No.537, 1978.
[4] 符素华, 段淑怀, 吴敬东, 等.北京山区次降雨侵蚀力[J].水土保持学报, 2002, 16 (1):37-39, 57.
[5] Richardson C W, Foster G R, Wright D A.Estimation of erosion index from daily rainfall amount[J].Transactions of the ASAE, 1983, 26 (1):153-156.
[6] 谢云, 章文波, 刘宝元.用日雨量和雨强计算降雨侵蚀力[J].水土保持通报, 2001, 21 (6):53-56.
[7] 章文波, 谢云, 刘宝元.降雨侵蚀力研究进展[J].水土保持学报, 2002, 16 (5):43-46.
[8] Ferro V, Porto P, Yu B A.Comparative study of rainfall errosivity estimation for southern Italy and southeastern Australia[J].Hydrological Sciences Journal, 1999, 44 (1):3-24.
[9] 黄炎和, 卢程隆, 郑添发, 等.闽东南降雨侵蚀力指标R值[J].水土保持学报, 1992, 6 (4):1-5.
[10] 吴素业.安徽大别山区降雨侵蚀力简易算法与时空分布规律研究[J].中国水土保持, 1994 (4):12-13.
[11] 周伏建, 陈明华, 林福兴, 等.福建省降雨侵蚀力指标R值[J].水土保持学报, 1995, 9 (1):13-18.
[12] Renard K G, Freimund J R.Using monthly precipitation data to estimate the R factor in the Revised USLE[J].Journal of Hydrology, 1994, 157:287-306.
[13] Yu B, Rosewell C J.An assessment of a daily rainfall erosivity model for New South Wales[J].Australian Journal of Soil Research, 1996, 34:139-152.
[14] 王万忠, 焦菊英, 郝小品, 等.中国降雨侵蚀力R值的计算与分布 (I)[J].水土保持学报, 1995, 9 (4):5-18.
[15] 章文波.不同类型雨量资料估算降雨侵蚀力[J].资源科学, 2003, 25 (1):35-41.
[16] Arnoldus H M J.Methodology used to determine the maximum potential average annual soil loss due to sheet and rill erosion in Morocco[J].FAO Soils Bulletin, 1977, 34:39-51.
[17] 叶芝菡, 刘宝元, 章文波, 等.北京市降雨侵蚀力及其空间分布[J].中国水土保持科学, 2003, 1 (1):16-20.
[18] Mikhailova E A, Bryant R B, Schwager S J, et al.Predicting rainfall erosivity in honduras[J].Soil Sci.Soc.Am.J., 1997, 61:273-279.
[19] 高克昌, 赵纯勇.重庆市主城区降雨侵蚀力计算方法研究[J].中国水土保持, 2002 (6):22-24.
[20] Xie Y, Liu B.Practical thresholds for separating erosive and non-erosive storms[J].American Society of Agricultural Engineers.2002, 45 (6):1843-1847.
[21] 谢云, 刘宝元, 章文波.侵蚀性降雨标准研究[J].土壤侵蚀与水土保持学报, 2000, 14 (4):6-11.
[22] Renard K G, Foster G R, Weesies G A, et al.Prediction soil erosion by water:A guide to conservation planning with the Revised Universal Soil Loss Equation (RUSLE)[M].Agric Handb 703, Washington D C:USDA, 1997.
[23] 章文波.中国降雨侵蚀力及土壤侵蚀计算机模型研究[D].北京:北京师范大学, 2001.
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备注/Memo
收稿日期:2007-1-18。
基金项目:国家重点基础研究发展规划项目（2007CB407204）；北京自然科学基金项目（8072016）；北京市科技项目（D0704004040191）
作者简介:徐丽（1981- ），女，山东青岛人，硕士研究生，主要从事土壤侵蚀研究。
通讯作者:符素华