Effect of Thickness of Gravel Cover on Infiltration Characteristics of Water Repellent Soils and Its Model Optimization

HU Tingfei; WANG Hui; HU Chuanwang; HE Xinjie; LIU Huatao

doi:10.13870/j.cnki.stbcxb.2019.02.003

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Effect of Thickness of Gravel Cover on Infiltration Characteristics of Water Repellent Soils and Its Model Optimization

更新时间：2025-03-12

- Effect of Thickness of Gravel Cover on Infiltration Characteristics of Water Repellent Soils and Its Model Optimization
- Vol. 33, Issue 2, Pages: 17-22(2019)
- 作者机构：
  
  湖南农业大学工学院,长沙,410128
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2019.02.003
  CLC：
- Published：2019
- 稿件说明：
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HU Tingfei, WANG Hui, HU Chuanwang, et al. Effect of Thickness of Gravel Cover on Infiltration Characteristics of Water Repellent Soils and Its Model Optimization[J]. 2019, 33(2): 17-22.
DOI：

HU Tingfei, WANG Hui, HU Chuanwang, et al. Effect of Thickness of Gravel Cover on Infiltration Characteristics of Water Repellent Soils and Its Model Optimization[J]. 2019, 33(2): 17-22. DOI： 10.13870/j.cnki.stbcxb.2019.02.003.

摘要

基于室内一维垂直入渗土柱试验，研究砾石覆盖厚度（0，3，6，9，12 cm）对斥水土壤积水入渗及水分再分布的影响，并利用不同入渗模型进行拟合。结果表明：砾石覆盖显著增加斥水土壤湿润锋运移距离（p<0.05）；同一时段内，各处理累积入渗量皆高于对照组（p<0.05），斥水性红壤累积入渗量与砾石覆盖厚度呈正相关关系；斥水性红壤初渗率与稳渗率随砾石覆盖厚度变化均可用指数函数来描述，决定系数分别为0.91和0.87，砾石覆盖使得斥水性潮土初渗率与稳渗率增大，其中稳渗率与砾石覆盖厚度呈二次函数关系，决定系数为0.78，覆盖6 cm时稳渗率达到最大；砾石覆盖明显提高斥水土壤剖面平均含水率，斥水性红壤和潮土最大分别增长180.8%和57.6%；隔绝蒸发条件下，再分布过程斥水土壤湿润体含水率表现为停渗时刻 > 再分布1天 > 再分布3天 > 再分布7天；Horton模型对砾石覆盖斥水土壤入渗过程的拟合效果最好，是分析和预测砾石覆盖斥水土壤水分入渗特征的适宜模型。

Abstract

Based on one-dimensional vertical infiltration experiments

we studied the effects of thickness of gravel (0

12 cm) on water infiltration and redistribution in water repellent soils with constant bulk density

and the infiltration process were simulated using different models. The results showed that the migration distance of the wetting fronts were increased significantly (p<0.05). Within the same period

all the cumulative infiltrations

which were positively correlated with the thickness of gravel

were higher under gravel covered treatments than that of the control group (p<0.05) in water repellent red soil. Both the stable infiltration rate and initial infiltration rate of the water repellent red soil could be described by exponential function with the thickness of gravel cover

and the coefficients of determination were 0.91 and 0.87 respectively. Compared with the control group

the gravel cover increased the stable infiltration rate and initial infiltration rate of water repellent tidal soil

the stable infiltration rate had a quadratic relationship with the thickness of gravel

the coefficient of determination was 0.78. The stable infiltration rate reached the maximum when the thickness of gravel was 6 cm. The water content in the section of water repellent soils was increased

with the largest increases of 180.8% and 57.6% respectively in red soil and tidal soil. Under the condition of isolated evaporation

the water contents of the upper layer in the water repellent soil under different thicknesses of gravel cover (above the wetting front) showed:stop infiltration > redistributed for 1 day > redistributed for 3 days > redistributed for 7 days. Horton infiltration model had the best fitting effect on water repellent soil infiltration under gravel cover

which made it suitable to analyze and predict the infiltration process in water repellent soils under gravel cover.

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references

Qiu Y, Wang Y, Xie Z. Long-term gravel-sand mulch affects soil physicochemical properties, microbial biomass and enzyme activities in the semi-arid Loess Plateau of North-western China[J].Acta Agriculturae Scandinavica, Section B:Soil and Plant Science,2014,64(4):294-303.

Li X Y, Gong J D. Effects of different ridge:Furrow ratios and supplemental irrigation on crop production in ridge and furrow rainfall harvesting system with mulches[J].Agricultural Water Management,2002,54(3):243-254.

陈心逸,李丽,佘冬立.砾石覆盖条件下盐碱土边坡降雨侵蚀水动力学特征[J].水土保持学报,2018,32(1):116-120.

余海龙,黄菊莹.砂田砾石覆盖对土壤大孔隙特征及其土壤水文过程的影响研究进展[J].水土保持研究,2012,19(4):284-288.

Poesen J, Lavee H. Rock fragments in top soils:Significance and processes[J].Catena,1994,23(1/2):1-28.

Qiu Y, Xie Z, Wang Y, et al. Influence of gravel mulch stratum thickness and gravel grain size on evaporation resistance[J].Journal of Hydrology,2014,519:1908-1913.

赵文举,马宏,徐裕,等.模拟降雨条件下压砂地土壤水分入渗规律研究[J].水土保持学报,2015,29(4):79-84.

王小燕,李朝霞,徐勤学,等.砾石覆盖对土壤水蚀过程影响的研究进展[J].中国水土保持科学,2011,9(1):115-120.

Jomaa S, Barry D A, Brovelli A, et al. Rain splash soil erosion estimation in the presence of rock fragments[J].Catena,2012,92:38-48.

陈士辉,谢忠奎,王亚军,等.砂田西瓜不同粒径砂砾石覆盖的水分效应研究[J].中国沙漠,2005(3):433-436.

周蓓蓓,邵明安.不同碎石含量及直径对土壤水分入渗过程的影响[J].土壤学报,2007,44(5):801-807.

白一茹,赵云鹏,王幼奇,等.宁夏砂田不同砾石覆盖厚度土壤入渗过程及模型分析[J].水土保持学报,2017,31(4):81-85.

Katra I, Lavee H, Sarah P. The effect of rock fragment size and position on topsoil moisture on arid and semi-arid hillslopes[J].Catena,2008,72(1):49-55.

Dekker L W, Ritsema C J. Wetting patterns and moisture variability in water repellent Dutch soils[J].Journal of Hydrology,2000,231/232:148-164.

王秋玲,施凡欣,刘志鹏,等.土壤斥水性影响土壤水分运动研究进展[J].农业工程学报,2017,33(24):96-103.

闵雷雷,于静洁.土壤斥水性及其对坡面产流的影响研究进展[J].地理科学进展,2010,29(7):855-860.

Wang Z, Wu Q J, Wu L, et al. Effects of soil water repellency on infiltration rate and flow instability[J].Journal of Hydrology,2000,231/232:265-276.

Doerr S H, Ritsema C J, Dekker L W, et al. Water repellence of soils:New insights and emerging research needs[J].Hydrological Processes,2007,21(17):2223-2228.

陈俊英,吴普特,张智韬,等.土壤斥水性对含水率的响应模型研究[J].农业机械学报,2012,43(1):63-67.

刘畅,陈俊英,张林,等.初始含水率对斥水黏壤土入渗特性的影响[J].排灌机械工程学报,2018,36(4):354-361.

Doerr S H. On standardizing the ‘Water Drop Penetration Time’ and the ‘Molarity of an Ethanol Droplet’ techniques to classify soil hydrophobicity:A case study using medium textured soils[J].Earth Surface Processes and Landforms,2015,23(7):663-668.

刘春成,李毅,任鑫,等.四种入渗模型对斥水土壤入渗规律的适用性[J].农业工程学报,2011,27(5):62-67.

柴红阳,陈俊英,张林,等.不同斥水程度粘壤土一维入渗特性的试验研究[J].排灌机械工程学报,2018. DOI:10.3969/j.jssn. 1674-8530. 17. 0178.

邹焱,陈洪松,苏以荣,等.红壤积水入渗及土壤水分再分布规律室内模拟试验研究[J].水土保持学报,2005,19(3):174-177.

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