入渗水量和试验尺度对土壤水非均匀流动的影响

唐泽华; 盛丰; 高云鹏

doi:10.13961/j.cnki.stbctb.2015.02.034

您当前的位置：

首页 >

文章列表页 >

入渗水量和试验尺度对土壤水非均匀流动的影响

试验研究

- 入渗水量和试验尺度对土壤水非均匀流动的影响
- Effects of Infiltration Amount and Experimental Scale on Heterogeneous Soil Water Flow
- 水土保持通报 2015年35卷第2期页码：173-178
- 作者机构：
  
  1. 长沙理工大学水利工程学院,湖南,长沙,410114
  2. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目"土壤优先流流动分形的时空特征和两区-两阶段分形模型研究"(51109017);湖南省自然科学基金项目(13JJ3069);水资源与水电工程科学国家重点实验室开放基金项目(2012B097)
- DOI：10.13961/j.cnki.stbctb.2015.02.034
  中图分类号：
- 纸质出版：2015
- 稿件说明：
移动端阅览
唐泽华, 盛丰, 高云鹏. 入渗水量和试验尺度对土壤水非均匀流动的影响[J]. 水土保持通报, 2015,35(2):173-178.

TANG Ze-hua, SHENG Feng, GAO Yun-peng. Effects of Infiltration Amount and Experimental Scale on Heterogeneous Soil Water Flow[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 173-178.
唐泽华, 盛丰, 高云鹏. 入渗水量和试验尺度对土壤水非均匀流动的影响[J]. 水土保持通报, 2015,35(2):173-178. DOI： 10.13961/j.cnki.stbctb.2015.02.034.

TANG Ze-hua, SHENG Feng, GAO Yun-peng. Effects of Infiltration Amount and Experimental Scale on Heterogeneous Soil Water Flow[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 173-178. DOI： 10.13961/j.cnki.stbctb.2015.02.034.

摘要

[目的] 研究入渗水量和试验尺度对土壤水非均匀流动(最大入渗深度和平均入渗深度、土壤水流运动非均匀程度和土壤优先流尺寸的影响)的影响

为农业灌溉施肥的高效利用、地下水环境保护以及流域水文过程预测等方面提供理论支撑。[方法] 采用亮蓝染色示踪方法在砂土条件下开展了9组18个(每组2个重复)不同入渗水量(分别为1.25

2.5和5.0 cm)和试验尺度(分别为0.25 m×0.25 m

0.5 m×0.5 m和1.0 m×1.0 m)的入渗试验。[结果] (1)相同试验尺度条件下

土壤水最大入渗深度和平均入渗深度均随着入渗水量的增大而增大;土壤水流运动非均匀程度随入渗水量的增大而先增大后减小。(2)相同入渗水量条件下

当入渗水量较小时

土壤水最大入渗深度和土壤水流运动非均匀程度随着试验尺度的增大而增大;当入渗水量很大时

试验尺度的变化对最大入渗深度和土壤水流运动非均匀程度的影响不明显。(3)入渗水量的增加和试验尺度的增大都将使得优先流通道尺寸增大。[结论] 入渗水量和试验尺度对土壤优先流运动有重要影响。

Abstract

[Objective] To study the effects of infiltration amount and experimental scale on heterogeneous soil water flow(including both the maximum infiltration depth and the average infiltration depth

preferential flow heterogeneity and the size of preferential flow path)

in order to provide theoretical support for efficient use of agricultural irrigation-fertilization

protection of groundwater environment and prediction of hydrological process etc.[Methods] 18 infiltration experiments

using the comassie brilliant blue staining as the dye tracer

were conducted in sand soil with various infiltration amounts(i.e. 1.25

2.5 and 5.0 cm) and experimental scales (i.e. 0.25 m×0.25 m

0.5 m×0.5 m and 1.0 m×1.0 m).[Results] (1) Both the maximum infiltration depth and the average infiltration depth increase with the increasing of infiltration amount under the same experimental scale

and the preferential flow heterogeneity increases firstly and then decreases with the increasing of the infiltration amount under the same experimental scale; (2) While under the same infiltration amount condition

the maximum infiltration depth and the preferential flow heterogeneity increase with the experimental scale when the infiltration amount is relatively small but the maximum infiltration depth and the preferential flow heterogeneity keep almost unchanged when the infiltration amount is considerably high; (3) Furthermore

the increasing of infiltration amount and experimental scale both make the preferential flow path expanded.[Conclusion] The infiltration amount and experimental scale have obvious impacts on the heterogeneous soil water flow.

关键词

Keywords

references

牛健植, 余新晓. 优先流问题研究及其科学意义[J]. 中国水土保持科学, 2005, 3(3):110-116.

Lipsius K, Mooney S J. Using image analysis of tracer staining to examine the infiltration patterns in a water repellent contaminated sandy soil[J]. Geoderma, 2006, 136(3):865-875.

盛丰,王康,张仁铎,等.田间尺度下土壤水流非均匀运动特征的染色示踪研究[J].水利学报,2009,40(1):101-108.

王康,张仁铎,缴锡云.多孔介质中非均匀流动特性的染色示踪试验研究[J].水科学进展,2007,18(5):662-667.

Wang Kang, Zhang Renduo, Yasuda H. Characterizing heterogeneity of soil water flow by dye infiltration experiments[J]. Journal of Hydrology, 2006, 328(3):559-571.

Flury M, Flühler H. Modeling solute leaching in soils by diffusion-limited aggregation:Basic concepts and applications to conservative solutes[J]. Water Resources Research, 1995, 31(10):2443-2452.

Wang Kang, Zhang Renduo, Sheng Feng. Characterizing heterogeneous processes of water flow and solute transport in soils using multiple tracer experiments[J]. Vadose Zone Journal, 2013, 12(3):100-105.

Sheng Feng, Wang Kang, Zhang Renduo, et al. Modeling preferential water flow and solute transport in unsaturated soil using the active region model[J]. Environmental Earth Sciences, 2011, 62(7):1491-1501.

Ketelsen H, Meyer W S. Adsorption of brilliant blue FCF by soils[J]. Geoderma, 1999, 90(1/2):131-145.

Kasteel R, Vogel H J, Roth K. Effect of non-linear adsorption on the transport behavior of brilliant blue in a field soil[J]. European Journal of Soil Science, 2002, 53(2):231-240.

Nobles M M, Wilding L P, Lin H S. Flow pathways of bromide and Brilliant Blue FCF tracers in caliche soils[J]. Journal of Hydrology, 2010, 393(1):114-122.

Wang Kand, Zhang Renduo. Heterogeneous soil water flow and macropores described with combined tracers of dye and iodine[J]. Journal of Hydrology, 2011, 397(1):105-117.

Mooney S J, Morris C. A morphological approach to understanding preferential flow using image analysis with dye tracers and X-ray computed tomography[J]. CATENA, 2008, 73(2):204-211.

Morris C, Mooney S J. A high-resolution system for the quantification of preferential flow in undisturbed soil using observations of tracers[J]. Geoderma, 2004, 118(1):133-143.

谢华,王康,张仁铎,等.土壤水入渗均匀特性的染色示踪试验研究[J].灌溉排水学报,2007,26(1):1-4.

王康,张仁铎,周祖昊,等.土壤非均匀水流运动和溶质迁移显色示踪方法研究[J].土壤学报,2009,46(4):603-610.

Öhrstr m P, Persson M, Albergel J, et al. Field-scale variation of preferential flow as indicated from dye coverage[J]. Journal of Hydrology, 2002, 257(1/4):164-173.

浏览量

1334

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

干湿循环作用下易溶盐含量对伊犁黄土强度的影响

冻融循环条件下伊犁地区滑坡黄土湿陷特性及微观机理

微生物-生物炭改良盐碱土互作机制研究进展

1960—2024年吉林省不同量级降水时空变化特征

典型黄土区人工林土壤水分与养分的区域特征