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| 畦田水流特性及灌水质量的分析 | |
| 引用本文： | 王京,史学斌,宋玲,庞秀明,李守存.畦田水流特性及灌水质量的分析[J].中国农村水利水电,2005,0(6):4-7. |
| 作者姓名： | 王京 史学斌 宋玲 庞秀明 李守存 |
| 作者单位： | 1. 石河子大学水利与建筑工程学院,新疆,石河子,832003 2. 石河子大学水利与建筑工程学院,新疆,石河子,832003;西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100 3. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100 |
| 摘 要： | 在陕西杨凌区的冬小麦及果树地进行了畦田规格和灌水技术要素对水流推进和消退过程、灌水效率及灌水均匀系数影响的田间试验，结果表明，文中给出的地面灌溉模型可较好地模拟畦田水流运动。根据灌水前、后土壤体积含水量计算了入渗水深均匀系数。结果表明，入渗水深均匀系数随畦宽的变化趋势与灌水效率相同，但可以达到0.75以上。对地面灌溉来说，高均匀系数并不一定意味着高灌水效率(田间水利用系数)。 |
| 关 键 词： | 地面灌溉 水流特性 数学模拟 灌水效率 灌水均匀度 |
| 文章编号： | 1007-2284(2005)06-0004-04 |
| 修稿时间： | 2004年12月9日 |
Analysis of Water Flow Performance and Irrigation Efficiency of Border Irrigation |
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| WANG Jing,SHI Xue-bin,SONG Ling,PANG Xiu-ming,LI Shou-cun.Analysis of Water Flow Performance and Irrigation Efficiency of Border Irrigation[J].China Rural Water and Hydropower,2005,0(6):4-7. | |
| Authors: | WANG Jing SHI Xue-bin SONG Ling PANG Xiu-ming LI Shou-cun |
| Abstract: | Field experiments were conducted in the winter wheat and fruit trees farmlands of Yangling City, Shanxi Province, to investigate the impacts of the sizes of the borders and irrigation technique parameters on the water flow advance and recession, irrigation application efficiency and distribution uniformity (DU). The results showed that the surface irrigation model could simulate the border irrigation water flow movement effectively. The distribution uniformity is calculated according to the changes in soil moisture content. It was found that the DU varies with the border width in a similar tendency with application efficiency, and a high DU of greater than 0.75 is possible in most of the borders. The results suggested that a high DU value does not necessarily mean high application efficiency for surface irrigation. |
| Keywords: | surface irrigation water flow performance mathematic simulation application efficiency irrigation distribution uniformity |
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