含沙率对层状土浑水膜孔灌单点源自由入渗特性的影响

白瑞; 费良军; 陈琳; 钟韵

doi:10.13870/j.cnki.stbcxb.2020.02.007

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含沙率对层状土浑水膜孔灌单点源自由入渗特性的影响

更新时间：2025-03-12

- 含沙率对层状土浑水膜孔灌单点源自由入渗特性的影响
- Effect of Sediment Concentration on Single Point Source Free Infiltration Characteristics of Muddy Water in Layered Soil with Film Hole Irrigation
- 水土保持学报 2020年34卷第2期页码：43-49
- 作者机构：
  
  西安理工大学省部共建西北旱区生态水利国家重点实验室,西安,710048
- 作者简介：
  
  [ "白瑞(1994-),女,硕士研究生,主要从事节水灌溉研究。E-mail:963642685@qq.com" ]
- 基金信息：
  
  国家自然科学基金项目（51779205，51479161）陕西省水利科技项目（2014slkj-02）
- DOI：10.13870/j.cnki.stbcxb.2020.02.007
  中图分类号： S275.3
- 纸质出版：2020
- 稿件说明：
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白瑞, 费良军, 陈琳, 等. 含沙率对层状土浑水膜孔灌单点源自由入渗特性的影响[J]. 水土保持学报, 2020,34(2):43-49.

BAI Rui, FEI Liangjun, CHEN Lin, et al. Effect of Sediment Concentration on Single Point Source Free Infiltration Characteristics of Muddy Water in Layered Soil with Film Hole Irrigation[J]. 2020, 34(2): 43-49.
白瑞, 费良军, 陈琳, 等. 含沙率对层状土浑水膜孔灌单点源自由入渗特性的影响[J]. 水土保持学报, 2020,34(2):43-49. DOI： 10.13870/j.cnki.stbcxb.2020.02.007.

BAI Rui, FEI Liangjun, CHEN Lin, et al. Effect of Sediment Concentration on Single Point Source Free Infiltration Characteristics of Muddy Water in Layered Soil with Film Hole Irrigation[J]. 2020, 34(2): 43-49. DOI： 10.13870/j.cnki.stbcxb.2020.02.007.

摘要

为探究不同浑水含沙率对层状土入渗特性的影响，通过室内膜孔灌自由入渗试验，研究了以夹砂层位置为5~10 cm的层状土条件下清水和不同含沙率的浑水（2%，5%，7%，9%）入渗的累积入渗量、湿润锋运移规律以及湿润体内土壤含水量分布情况，分别建立了层状土不同含沙率浑水膜孔灌入渗量、湿润锋运移距离与入渗时间之间的关系；提出了基于清水入渗的不同浑水含沙率单位膜孔面积累积入渗量模型。结果表明：不同浑水含沙率累积入渗量变化趋势一致，但含沙率越大，累积入渗量越小，浑水减渗作用越明显，对应入渗系数越小，入渗指数越大；湿润锋运移距离随含沙率的增大而减小，当水分入渗到壤—砂交界面时，湿润锋在垂向上出现明显停滞，仅在水平方向上随入渗时间不断推进；供水结束后不同浑水含沙率下土壤湿润体内水分主要集中砂层以上，土壤含水量随浑水含沙率的增大而减小。研究结果可为进一步研究层状土浑水膜孔灌灌溉技术提供理论参考。

Abstract

In order to explore the effect of different sediment concentrations on infiltration characteristics of muddy water in layered soil

using the indoor free infiltration test of film hole irrigation

the cumulative infiltration

the wetting front migration law and the distribution of soil water in the wet body of clear water and different sediment concentrations (2%

7% and 9%) of muddy water in layered soil with 5-10 cm sand layer were studied. The relationships of the cumulative infiltration volume

the wetting front migration distance and the infiltration time were established. The cumulative infiltration volume model of per unit film hole area under different muddy water sediment concentrations was proposed based on clear water infiltration. The results showed that there was a consistent trend for the cumulative infiltration under different sediment concentrations. The larger the sediment concentration was

the smaller the cumulative infiltration was

resulting in the more obvious of infiltration reduction force with muddy water. The smaller the infiltration coefficient was

the larger the infiltration index was. The wetting front migration distance decreased with the increasing of sediment concentrations. When the water infiltrated into the loam-sand interface

the wetting front had a significant stagnation in the vertical direction

which advanced with the infiltration time only in the horizontal direction. The soil moisture in the wet body mainly concentrated above the sand layer

and the soil water contents decreased with the increase of the muddy water sediment concentrations. These results could provide a theoretical reference for further research of muddy water film hole irrigation technology in layered soil.

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references

王云强,邵明安,刘志鹏.黄土高原区域尺度土壤水分空间变异性[J].水科学进展,2012,23(3):310-316.

任利东,黄明斌,樊军.不同类型层状土壤持水能力的研究[J].农业工程学报,2013,29(19):105-111.

陈琳,费良军,刘利华,等.土壤初始含水率对浑水膜孔灌肥液自由入渗水氮运移特性影响[J].水土保持学报,2018,32(2):58-66.

Fan Y W, Gong J G, Wang Y, et al. Application of Philip infiltration model to film hole irrigation[J].Water Supply,2019,19(3):978-985.

Muhammad S, Sajid M. Application of film hole irrigation on borders forwater saving and sunflower production[J].Arabian Journal for Science and Engineering,2013,38(6):1347-1358.

Li Y B, Fan Y W, Liu Y, et al. Influencing factors and simplified model of film hole irrigation[J].Water,2017,9(7):543-560.

程东娟,赵新宇,费良军.膜孔灌灌施尿素条件下氮素转化和分布室内模拟试验[J].农业工程学报,2009,25(12):58-62.

姜瑞瑞,费良军,金世杰,等.浑水含沙率和泥沙粒度组成对膜孔灌入渗特性的影响[J].水土保持学报,2018,32(1):157-161.

钟韵,费良军,刘乐,等.膜孔灌溉下土壤入渗特征的多因素分析[J].水科学进展,2018,29(4):505-513.

刘文光,贾生海,范严伟,等.夹砂层土壤膜孔灌水分入渗规律数值模拟与试验验证[J].水资源与水工程学报,2018,29(4):243-248.

涂安国.层状土壤水分入渗与溶质运移研究进展[J].江西农业大学学报,2017,39(4):818-825.

Colman E A, Bodman G B. Moisture and energy conditions during downward entry of water into moist and layered soils[J].Soil Science Society of America Journal,1945,9(C):3-11.

Hill D E, Parlange J Y. Wetting front instability in layered soils1[J].Soil Science Society of America Journal,1972,36(5):697-702.

张建丰.黄土区层状土入渗特性及其指流的实验研究[D].陕西杨凌:西北农林科技大学,2004.

王文焰,张建丰,汪志荣,等.黄土中砂层对入渗特性的影响[J].岩土工程学报,1995,17(5):33-41.

李毅,任鑫,Horton R.不同质地和夹层位置对层状土入渗规律的影响[J].排灌机械工程学报,2012,30(4):485-490.

吉恒莹,邵明安,贾小旭.水质对层状土壤入渗过程的影响[J].农业机械学报,2016,47(7):183-188.

王全九,王文焰,邵明安,等.浑水入渗机制及模拟模型研究[J].农业工程学报,1999,15(1):141-144.

曹惠提,卞艳丽,张会敏,等.浑水灌溉下土壤水分变化研究[J].节水灌溉,2013,1(8):1-6.

李雪转,樊贵盛.土壤有机质含量对土壤入渗能力及参数影响的试验研究[J].农业工程学报,2006,22(3):188-190.

钟韵,费良军,傅渝亮,等.浑水膜孔灌入渗影响因素[J].排灌机械工程学报,2017,35(2):178-184.

范严伟,马孝义,王波雷,等.膜孔灌土壤湿润体水分分布与入渗特性数值模拟[J].农业机械学报,2008,39(11):35-41.

许尊秋,毛晓敏,陈帅.层状土层序排列对水分运移影响的室内土槽试验[J].中国农村水利水电,2016(8):59-62.

Priyank G, Javed A, Mohammad M. Influence of thickness and position of the individual layer on the permeability of the stratified soil[J].Perspectives in Science,2016,8:757-759.

周文,曹琳,王锦辉.浑水膜孔灌单向交汇入渗特性试验研究[J].排灌机械工程学报,2017,35(7):627-633.

费良军,朱兴华,吴军虎.膜孔灌多向交汇入渗减渗特性和数学模型研究[J].水利学报,2006,37(1):104-108.

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