|
|||||
|
|
| 坡面水蚀动力因子与土壤剥蚀率灰色关联分析 | |
| 引用本文： | 王瑄,李占斌,鲁克新,郑良勇.坡面水蚀动力因子与土壤剥蚀率灰色关联分析[J].水利学报,2005,36(5):0525-0530. |
| 作者姓名： | 王瑄 李占斌 鲁克新 郑良勇 |
| 作者单位： | 1. 西安理工大学,水资源研究所,陕西,西安,710048;沈阳农业大学,水利学院,辽宁,沈阳,110161 2. 西安理工大学,水资源研究所,陕西,西安,710048;黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 3. 西安理工大学,水资源研究所,陕西,西安,710048 4. 山东省,水利水电勘测设计院,山东,济南,250013 |
| 基金项目： | 国家科学基金项目(40371075) |
| 摘 要： | 为了确定何种水蚀动力因子能准确地描述径流剥蚀土壤的过程，本文在坡度为3°到30°和流量为2.5L/min到6.5L/min范围内采用土槽径流冲刷试验，运用灰色关联分析法，系统地研究了坡面水蚀动力因子(流量、单宽径流能耗、水流剪切力、水流功率和单位水流功率)与土壤剥蚀率之间的关联度。结果表明：流量相同时，水流剪切力与土壤剥蚀率关联度最大，呈幂函数关系；坡度相同时，单宽径流能耗与土壤剥蚀率关联度最高，两者呈线性关系。 |
| 关 键 词： | 坡面水蚀 土壤剥蚀率 水蚀动力因子 灰色关联分析 |
| 文章编号： | 0559-9350(2005)05-0525-06 |
| 修稿时间： | 2004年3月29日 |
Grey correlation analysis on relationship between soil detachment rate and hydrodynamic erosion factors |
|
| WANG Xuan,LI Zhan-bin,LU Ke-xin,ZHENG Liang-yong.Grey correlation analysis on relationship between soil detachment rate and hydrodynamic erosion factors[J].Journal of Hydraulic Engineering,2005,36(5):0525-0530. | |
| Authors: | WANG Xuan LI Zhan-bin LU Ke-xin ZHENG Liang-yong |
| Affiliation: | 1.Xi'an University of Technology, Xi'an 710048, China; 2.Shenyang Agricultural University, Shenyang 110161, China;3.State Key laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Yangling 712100, China;4.Shandong Survey and Design Institute of Water Conservancy, Jinan 250013, China |
| Abstract: | The correlations between the hydrodynamic factors of slope flow (including the discharge, flow energy consumption per unit width, flow shear stress, stream power and unit stream power) and soil detachment rate are experimentally studied in a flume. The width of the flume is 100cm, the gradient of the slope is ranging from 3° to 30° and the flow discharge is varied from 2.5l/min to 6.5l/min. The result shows that the correlation degree between flow shear stress and soil detachment rate is the highest and the relationship is in a form of power function, when the flow discharge is the same. The correlation degree between flow energy consumption per unit width and soil detachment rate is the highest when the gradient of slope is kept as the same, the relationship is linear. |
| Keywords: | water flow erosion slope soil detachment hydrodynamic factors grey correlation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《水利学报》浏览原始摘要信息 | |
| 点击此处可从《水利学报》下载全文 | |