宽垄沟灌灌水水分湿润锋运移及灌水质量影响试验研究  

Experimental Study on the Effect of Wide Ridge Furrow Irrigation on Wetting Front Transport and Irrigation Quality

作　　者：汪顺生[1] 孟鹏涛[1] 刘东鑫[1] 王兴 史尚 

机构地区：[1]华北水利水电大学,河南郑州450045 [2]江西省灌溉排水发展中心,江西南昌330013

出　　处：《节水灌溉》2015年第10期1-4,8,共5页Water Saving Irrigation

基　　金：国家自然科学基金(51279157);河南省教育厅科学技术研究重点项目(12A210018);河南省高等学校青年骨干教师资助计划项目;华北水利水电大学高层次人才科研启动项目

摘　　要：为了反映田间灌溉土壤水分运移的实际情况,采用大田试验的方法,研究周年连作沟灌条件下灌水时不同灌水技术要素(垄宽、沟宽、沟深和沟底纵坡)对湿润锋运移距离和灌水质量的影响。结果表明:随着垄宽、沟宽、沟深的增大,土体湿润运移范围逐渐增大;随着沟底纵坡的增大,沟首部分土壤水分垂向和横向运移范围逐渐减小,沟尾部分反之。通过不同灌水技术要素对灌水质量的影响评价分析,为选择合适的灌水技术参数提供参考。In order to reflect the actual situation of irrigation soil moisture migration in the field,the test directly adopts the field experiment method to study the effect of different irrigation techniques elements（ridge width,groove width,groove depth and longitudinal ditch）on the wetting front distance and irrigation quality under the condition of anniversary of continuous cropping furrow.The results show that as the ridge width,groove width,and groove depth increases,the range of soil moisture migration enlarges;as the longitudinal ditch increases,the range of vertical and lateral migration of soil moisture of the first part of the ditch decreases,while those of the ditch tail section increase.The effect of different irrigation technique factor on irrigation quality is analyzed to provide a reference for the selection of appropriate irrigation technical parameters.

关 键 词：周年连作沟灌 灌水技术要素 湿润锋运移 灌水质量 

分 类 号：S275.3[农业科学—农业水土工程]