|
|||||
|
|
| 赣北第四纪红壤坡地降雨侵蚀力的计算与分析 | |
| 引用本文： | 郑海金,方少文,杨洁,汤崇军,汪邦稳,宋月君.赣北第四纪红壤坡地降雨侵蚀力的计算与分析[J].中国水土保持科学,2010,8(2):36-40. |
| 作者姓名： | 郑海金 方少文 杨洁 汤崇军 汪邦稳 宋月君 |
| 作者单位： | 1. 江西省水土保持科学研究所,330029,南昌;北京林业大学水土保持学院,100083,北京 2. 江西省水土保持科学研究所,330029,南昌;江西农业大学国土资源与环境学院,330045,南昌 3. 江西省水土保持科学研究所,330029,南昌 |
| 基金项目： | 水利公益性行业科研专项经费项目，％％ |
| 摘 要： | 降雨侵蚀力是建立土壤侵蚀预报模型的基础。为探讨赣北第四纪红壤坡地降雨侵蚀力的最佳组合形式、时间变异特征及其简易估算方法,通过赣北典型的第四纪红壤坡地区2001—2005年的实测资料,对各种降雨参数的单因子、复合因子与土壤流失量进行统计分析,对降雨侵蚀力的时间变异特征进行初步探讨,并对降雨侵蚀力和降雨量进行相关分析。结果表明:∑EI30可作为试验区降雨侵蚀力的最佳组合形式;降雨侵蚀力年际分布不均匀,年内分配主要集中在4—9月(占91.66%),总体上降雨侵蚀力与降雨量的年际和月际变化基本一致;次降雨的降雨侵蚀力与降雨量之间的相关系数为0.838,达到极显著水平。据此可建立基于降雨量的降雨侵蚀力简易模型,对无降雨过程资料地区的降雨侵蚀力计算具有参考价值。 |
| 关 键 词： | 第四纪红壤坡地 降雨侵蚀力 估算模型 |
Analysis of rainfall erosivity on sloping land of Quaternary Red Earth in North Jiangxi Province |
|
| Zheng Haijin,Fang Shaowen,Yang Jie,Tang Chongjun,Wang Bangwen,Song Yuejun.Analysis of rainfall erosivity on sloping land of Quaternary Red Earth in North Jiangxi Province[J].Science of Soil and Water Conservation,2010,8(2):36-40. | |
| Authors: | Zheng Haijin Fang Shaowen Yang Jie Tang Chongjun Wang Bangwen Song Yuejun |
| Institution: | Zheng Haijin1,2,Fang Shaowen1,3,Yang Jie1,Tang Chongjun1,Wang Bangwen1,Song Yuejun1(1.Jiangxi Institute of Soil , Water Conservation,330029,Nanchang,2.College of Soil , Water Conservation,Beijing Forest University,100083,Beijing,3.College of L, Resources , Environment,Jiangxi Agricultural University,330045,Nanchang: China) |
| Abstract: | Rainfall erosivity is necessary to develop the soil erosion model.To study the law of rainfall erosivity on sloping land of quaternary red earth,an experimental spot was estabished on the representative area to investigate rainfall and sediment from 2001 to 2005.The relations between rainfall parameters and sediment amount were analyzed.Then,rainfall erosivity was calculated and its distribution regular in time was studied.At last,the relation between rainfall erosivity and precipitation was analyzed for ea... |
| Keywords: | sloping land of quantenary red earth rainfall erosivity prediction equation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《中国水土保持科学》浏览原始摘要信息 | |
| 点击此处可从《中国水土保持科学》下载免费的PDF全文 | |