西安理工大学学报2016，Vol.32Issue(3)：354-358,5.DOI:10.19322/j.cnki.issn.1006-4710.2016.03.018
竖管灌水器入渗特性影响因素分析
Study on influence factors of vertical tube emitter’s infiltration characteristics
摘要
Abstract
Vertical tube emitter is a new type emitter applied for sub-irrigation system,in order to analyze the importance for cumulative infiltration of silt loam by influence factors which including pressure head,diameter of vertical tube,initial soil moisture content and soil bulk density.So as to the laboratory test have the accuracy,universal and representativeness,the nine groups of the experimental schemes designed based on the orthogonal experimental design table L9 (3 4 ).In ad-dition,the experiment of effects on sandy loam cumulative infiltration with influence factors of pressure head and diameter of vertical tube carried out.A Mariotte bottle used to regulate the pressure head.The total infiltration time was 7h for every treatment of silt loam and 5h for sandy loam,and the interface-between soil and outlet of emitter—was buried 20cm for every test.Ac-cording to the results of experiments for silt loam,used grey correlational analysis method to cal-culate incidence degree between influence factors and cumulative infiltration.The incidence de-gree pointed out that pressure head was the main influence factor and the order of factors with in-cidence degree was pressure head>diameter of vertical tube>initial soil moisture content>soil bulk density.The experimental results of sandy loam showed that pressure head and diameter of vertical tube had a positive effect on cumulative infiltration;with the increasing of pressure head and diameter of vertical tube the rangeability of cumulative infiltration decreases.This research has an important significance on further study on infiltration law of vertical tube emitter.关键词
竖管灌水器/累积入渗量/压力水头/竖管灌水器直径/灰色关联度分析Key words
vertical tube emitter/cumulative infiltration/pressure head/diameter of vertical tube emitter/gray correlation analysis分类
农业科技引用本文复制引用
何靖,白丹,郭霖,王新端..竖管灌水器入渗特性影响因素分析[J].西安理工大学学报,2016,32(3):354-358,5.基金项目
国家自然科学基金资助项目（41571222，5129156）；高等学校博士学科点专项科研基金联合资助课题（20116118110010）；陕西省农业科技攻关项目 （）
