| 云南昭通坝区降雨侵蚀力R指标的初步研究 |
| |
| 引用本文： | 刘文耀.云南昭通坝区降雨侵蚀力R指标的初步研究[J].西部林业科学,1999(2). |
| |
| 作者姓名： | 刘文耀 |
| |
| 作者单位： | 中国科学院西双版纳热带植物园 |
| |
| 摘 要： | 以云南昭通坝区昭鲁河新泉水文站１９６９～１９７８年１０年的观测资料为基础，分析计算了各种降雨参数的单因子和复合因子，分别与土壤流失量之间的相关关系。结果表明，适合于昭通坝区的降雨侵蚀力Ｒ指标为ΣＥ·Ｉ１５。根据不同组合形式与土壤流失量的相关系数ｒ值进行评价，原通用土壤流失方程式中，降雨侵蚀力Ｒ指标也基本适用于昭通坝区。昭通坝区年平均Ｒ值为１８４１４，在１年中Ｒ值主要分布于５～１０月。
|
| 关 键 词： | 昭通坝区，降雨，R指标 |
Preliminary Study on R Index of Zhaotong Basin |
| |
| Liu Wenyao.Preliminary Study on R Index of Zhaotong Basin[J].Journal of West China Forestry Science,1999(2). |
| |
| Authors: | Liu Wenyao |
| |
| Abstract: | The correlation between simple rainfall factors,comprehensive rainfall factors and soil loss amount were studied by using the observation data of 19691978 from Zhaoluhe Xinquan hydrographic station in Zhaotong basin.The results indicated the erosion power of rainfall( R index)was EI15. Based on the correlation indexes( rWTBZ)of different combination between rainfall factors and soil loss amount,the R index in the soil loss formula was evaluated as be suitable for Zhaotong basin.The R index was mainly distributed in May to October,with an mean of 184. 14. |
| |
| Keywords: | Zhaotong basin rainfall R index |
| 本文献已被 CNKI 等数据库收录！ |
