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| 基于地上可视湿润距离的地表滴灌入渗深度估算模式研究 | |
| 引用本文： | 张振华,刘继龙,蔡焕杰,谢恒星.基于地上可视湿润距离的地表滴灌入渗深度估算模式研究[J].灌溉排水学报,2006,25(1):10-13. |
| 作者姓名： | 张振华 刘继龙 蔡焕杰 谢恒星 |
| 作者单位： | 1. 烟台师范学院,地理与资源管理学院,山东,烟台,264025;西北农林科技大学,旱区农业水土工程教育部重点实验室,陕西,杨凌,712100 2. 烟台师范学院,地理与资源管理学院,山东,烟台,264025 3. 西北农林科技大学,旱区农业水土工程教育部重点实验室,陕西,杨凌,712100 |
| 基金项目： | 中国科学院资助项目;烟台师范学院校科研和教改项目 |
| 摘 要： | 地表最大湿润距离R(t)和垂向最大入渗深度H(t)是地表滴灌系统设计的基础,由于垂向最大入渗深度H(t)不易观测,因此如何合理地确定H(t)是滴灌应用中需要解决的关键问题之一。对烟台棕壤土地表点源、线源入渗进行了室内试验研究,提出了基于地表水平湿润距离的地表滴灌垂向湿润锋的估算模式。模拟值和实测值的对比表明,本模式的估算精度较高,入渗过程中的最大相对误差不到5%。 |
| 关 键 词： | 点源入渗 线源入渗 平均含水率增量 垂直湿润锋估算模型 |
| 文章编号： | 1000-646X(2006)01-0010-04 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2005年10月31 |
Estimation Model of Soil Surface Trickle Infiltration Vertical Wetting Front Based on Horizontal Visual Wetting Front |
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| ZHANG Zhen-hua,LIU Ji-long,CAI Huan-jie,XIE Heng-xing.Estimation Model of Soil Surface Trickle Infiltration Vertical Wetting Front Based on Horizontal Visual Wetting Front[J].Journal of Irrigation and Drainage,2006,25(1):10-13. | |
| Authors: | ZHANG Zhen-hua LIU Ji-long CAI Huan-jie XIE Heng-xing |
| Institution: | 1. The Geography and Resource Management College of Yan-tai Normal University, Yantai 264025, China; 2. The Key Laboratory of Agriculture Soil and Water Engineering, Northwestern Science and Technical University of Agriculture and Forestry, Yangling 712100, China |
| Abstract: | The surface horizontal wetting front and vertical wetting front are base of drip irrigation system design.Because of vertical wetting front is difficult to observe,it is a key issue to make sure the depth of vertical wetting front in drip irrigation.Based on the experiment results of Yan-tai soil,the estimation model of vertical wetting front based on surface visual horizontal wetting front is put forward.The compare between simulation and observation show that the precision of the estimation model is high with the highest relative error less than 5%. |
| Keywords: | point source infiltration line source infiltration average water content increment estimation model of vertical wetting front |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |