模拟降雨下前期含水量对黄绵土坡面产流产沙过程的影响

淡彩虹; 许欢欢; 王兵; 张慧妮; 李家明; 马金龙

doi:10.13870/j.cnki.stbcxb.2023.01.005

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模拟降雨下前期含水量对黄绵土坡面产流产沙过程的影响

更新时间：2025-03-12

- 模拟降雨下前期含水量对黄绵土坡面产流产沙过程的影响
- Effect of Antecedent Soil Moisture on Runoff and Sediment Yield on Loess Slope Under Simulated Rainfall
- 水土保持学报 2023年37卷第1期页码：31-36
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  2. 中国科学院大学,北京,100049
- 作者简介：
  
  [ "淡彩虹(1998-),女,硕士研究生,主要从事土壤侵蚀研究。E-mail:danch113@163.com" ]
- 基金信息：
  
  中国科学院"西部之光"西部青年学者A类项目(XAB2019A04);国家自然科学基金项目(42130717)
- DOI：10.13870/j.cnki.stbcxb.2023.01.005
  中图分类号： S157.1
- 纸质出版：2023
- 稿件说明：
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淡彩虹, 许欢欢, 王兵, 等. 模拟降雨下前期含水量对黄绵土坡面产流产沙过程的影响[J]. 水土保持学报, 2023,37(1):31-36.

DAN Caihong, XU Huanhuan, WANG Bing, et al. Effect of Antecedent Soil Moisture on Runoff and Sediment Yield on Loess Slope Under Simulated Rainfall[J]. 2023, 37(1): 31-36.
淡彩虹, 许欢欢, 王兵, 等. 模拟降雨下前期含水量对黄绵土坡面产流产沙过程的影响[J]. 水土保持学报, 2023,37(1):31-36. DOI： 10.13870/j.cnki.stbcxb.2023.01.005.

DAN Caihong, XU Huanhuan, WANG Bing, et al. Effect of Antecedent Soil Moisture on Runoff and Sediment Yield on Loess Slope Under Simulated Rainfall[J]. 2023, 37(1): 31-36. DOI： 10.13870/j.cnki.stbcxb.2023.01.005.

摘要

为探究不同前期土壤含水量条件下坡面产流产沙特征及产流产沙关系

以安塞黄绵土为研究对象

通过设置6个前期土壤含水量处理(5%

10%

15%

20%

25%

30%)

采用室内人工模拟降雨试验来系统研究前期土壤含水量对坡面产流产沙过程的影响。每个含水量处理设置2个重复

坡面坡度为15°

设计雨强为90 mm/h

降雨历时为1 h。结果表明:(1)随着前期土壤含水量的升高

坡面初始产流时间幂函数减小

产流量线性增大。(2)坡面土壤流失量随前期土壤含水量增大呈幂函数增加

高含水量组(29.3%)土壤流失量分别是低含水量组(5.8%和10.6%)和中含水量组(15.3%

20.4%

25.1%)的86.1

8.9倍。当前期含水量接近饱和时

坡面侵蚀加剧

土壤流失量迅速增加。(3)不同前期土壤含水量条件下坡面产流量与产沙量呈幂函数关系

当产流速率超过1.4 L/min

产沙量迅速增加甚至翻倍

呈"水大沙多"的特点。前期土壤含水量通过影响入渗产流和改变径流泥沙关系双重作用来影响坡面产沙。因此

对黄绵土坡面而言

应注意防范连绵持久降雨后暴雨或特大暴雨所造成的水土流失问题

可采取耕作、植被覆盖等措施维持适当土壤含水量使土层不饱和来减少侵蚀。研究结果为黄土高原水土资源保护和管理提供科学依据。

Abstract

In order to explore the characteristics of runoff and sediment yield and the relationship between runoff and sediment yield on the slope under different antecedent soil moisture conditions

this paper took Ansai loessial soil as the research object

and systematically studied the influence of antecedent soil moisture on runoff and sediment on slope by setting six antecedent soil moisture treatments (5%

10%

15%

20%

25%

30%). Two repetitions were set for each water content treatment

the slope gradient was 15°

the rainfall intensity were set to 90 mm/h

and the rainfall duration was set to 1 hour. The results showed that: (1) With the increase of antecedent soil moisture

the initial runoff time decreased as a power function

and the runoff increased linearly. (2) The amount of soil loss on the slope increased as a power function with the increase of antecedent soil moisture. The amount of soil loss in the high antecedent soil moisture group (29.3%) was 86.1 and 8.9 times that in the low water content group (5.8% and 10.6%) and the medium water content group (15.3%

20.4% and 25.1%). When antecedent soil moisture was close to saturation

the slope erosion intensified and the amount of soil loss increased rapidly. (3) Under the conditions of different antecedent soil moisture

the relationship between slope runoff and sediment yield was a power function. When the runoff yield rate exceeded 1.4 L/min

the sediment yield increased rapidly or even doubled

showing the characteristics of "large water and more sediment". Antecedent soil moisture affected slope sediment yield by affecting infiltration runoff and changing the relationship between runoff and sediment. Therefore

for the loess slope

attention should be paid to preventing soil erosion caused by rainstorm or extreme rainstorm after continuous and lasting rainfall. Measures such as cultivation and vegetation cover can be taken to maintain appropriate soil water content and make the soil layer unsaturated to reduce erosion. The results provide a scientific basis for the protection and management of soil and water resources in the Loess Plateau.

关键词

Keywords

references

张向炎,史学正,于东升,等.前期土壤含水量对红壤坡面产流产沙特性的影响[J].水科学进展,2010,21(1):23-29.

Han E J, Merwade V, Heathman G C. Implementation of surface soil moisture data assimilation with watershed scale distributed hydrological model[J].Journal of Hydrology,2012,416/417:98-117.

Wang Y F, You W, Wang Q J. Effects of subsequent rainfall events with different intensities on runoff and erosion in a coarse soil[J].Catena,2018,170:100-107.

王辉,王全九,邵明安.前期土壤含水量对坡面产流产沙特性影响的模拟试验[J].农业工程学报,2008,24(5):65-68.

Li J Y, Zhang F B, Wang S W, et al. Combined influences of wheat-seeding cover and antecedent soil moisture on sheet erosion in small-flumes[J].Soil and Tillage Research,2015,151:1-8.

Le Bissonnais Y, Singer M J. Crusting, runoff, and erosion response to soil water content and successive rainfalls[J].Soil Science Society of America Journal,1992,56(6):1898-1903.

Luk S H, Hamilton H. Experimental effects of antecedent moisture and soil strength on rainwash erosion of two luvisols, Ontario[J].Geoderma,1986,37(1):29-43.

王礼先.水土保持学[M].北京:中国林业出版社,2001:137-138.

Philip J R. The theory of infiltration:5. The influence of the initial moisture content[J].Soil Science,1957,84(4):329-339.

刘振波,史学正,于东升,等.模拟降雨下土壤前期含水量对土壤可蚀性的影响[J].生态环境,2008,17(1):397-402.

Luk S H. Effect of antecedent soil moisture content on rainwash erosion[J].Catena,1985,12(2/3):129-139.

张玉斌,郑粉莉.近地表土壤水分条件对坡面土壤侵蚀过程的影响[J].中国水土保持科学,2007,5(2):5-10.

陈洪松,邵明安,王克林.土壤初始含水率对坡面降雨入渗及土壤水分再分布的影响[J].农业工程学报,2006,22(1):44-47.

Defersha M B, Melesse A M. Effect of rainfall intensity, slope and antecedent moisture content on sediment concentration and sediment enrichment ratio[J].Catena,2012,90:47-52.

Bochet E, Poesen J, Rubio J L. Runoff and soil loss under individual plants of a semi-arid Mediterranean shrubland:Influence of plant morphology and rainfall intensity[J].Earth Surface Processes and Landforms,2006,31(5):536-549.

Vermang J, Demeyer V, Cornelis W M, et al. Aggregate stability and erosion response to antecedent water content of a loess soil[J].Soil Science Society of America Journal,2009,73(3):718-726.

Wischmeier W H, Smith D D. Predicting rainfall erosion losses from cropland east of the Rocky Mountains:Guide for selection of Practices for soil and water conservation[M].Washington D C:US Government Printing Office,1965:10-36.

Renard K G, Foster G R, Weesies G A, et al. Predicting soil erosion by water:A guide to conservation planning with the Revised Universal Soil Loss Equation (RUSLE)[M].Washington D C:US Government Printing Office,1997:143-182.

蔡雄飞,雷丽,王济,等.前期含水量对喀斯特山地石灰土坡面产流产沙的影响[J].水土保持研究,2019,26(1):29-33.

游微,樊军,魏修彬,等.粗质地土壤坡度和前期含水量对土壤侵蚀的影响[J].水土保持学报,2017,31(4):18-24.

吴秋菊,吴佳,王林华,等.黄土区坡耕地土壤结皮对入渗的影响[J].土壤学报,2015,52(2):303-311.

路培,王林华,吴发启.不同降雨强度下土壤结皮强度对侵蚀的影响[J].农业工程学报,2017,33(8):141-146.

卜崇峰,蔡强国,张兴昌,等.土壤结皮的发育特征及其生态功能研究述评[J].地理科学进展,2008,27(2):26-31.

段金晓,李鹏,李占斌,等.模拟降雨下前期含水量对冻融坡面产流产沙过程的影响[J].水土保持学报,2017,31(6):73-78,175.

柯奇画,张科利.人工降雨模拟试验的相似性和应用性探究[J].水土保持学报,2018,32(3):16-20.

Huang C H, Bradford J M. Analyses of slope and runoff factors based on the WEPP erosion model[J].Soil Science Society of America Journal,1993,57(5):1176-1183.

徐露,张丹,向宇国,等.不同耕作措施下金沙江下游紫色土区坡耕地产流产沙特征[J].山地学报,2020,38(6):851-860.

Ma L, Li J Y, Liu J J. Effects of antecedent soil water content on infiltration and erosion processes on loessial slopes under simulated rainfall[J].Hydrology Research,2020,51(5):882-893.

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