Slope Erosion and Its Hydrodynamic Characteristic of Cinnamon Soil Under Continuous Rainfall

YUAN Hedi; XIN Zhongbao; JIANG Qiuling; YU Xinxiao; FAN Dengxing

doi:10.13870/j.cnki.stbcxb.2020.04.003

您当前的位置：

首页 >

文章列表页 >

Slope Erosion and Its Hydrodynamic Characteristic of Cinnamon Soil Under Continuous Rainfall

更新时间：2025-03-12

- Slope Erosion and Its Hydrodynamic Characteristic of Cinnamon Soil Under Continuous Rainfall
- Vol. 34, Issue 4, Pages: 14-20(2020)
- 作者机构：
  
  1. 北京林业大学水土保持学院,北京,100083
  2. 北京林业大学北京市水土保持工程技术研究中心,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.04.003
  CLC：
- Published：2020
- 稿件说明：
移动端阅览
YUAN Hedi, XIN Zhongbao, JIANG Qiuling, et al. Slope Erosion and Its Hydrodynamic Characteristic of Cinnamon Soil Under Continuous Rainfall[J]. 2020, 34(4): 14-20.
DOI：

YUAN Hedi, XIN Zhongbao, JIANG Qiuling, et al. Slope Erosion and Its Hydrodynamic Characteristic of Cinnamon Soil Under Continuous Rainfall[J]. 2020, 34(4): 14-20. DOI： 10.13870/j.cnki.stbcxb.2020.04.003.

摘要

为研究在长时间降雨侵蚀过程中北京褐土坡面侵蚀特征及其水动力学机制，通过室内人工模拟降雨试验，分别在60，90 mm/h雨强下对褐土坡面进行连续10场次降雨试验，探讨了坡面侵蚀过程中的产流产沙特征及其与水动力学参数间的关系。结果表明：（1）在雨强及次降雨量较一致的条件下，随降雨场次增加坡面次降雨产流量变动较小，而次降雨产沙量变化较大，60，90 mm/h雨强下次降雨产沙量的变异系数为23.94%和59.88%，且第10场降雨的产沙量仅为第1场降雨的59.74%和22.28%；（2）连续降雨条件下，平均次降雨产沙速率随雨强增大而增大，径流含沙量随降雨时间呈幂函数下降趋势；（3）受褐土坡面细沟形态变化和土壤粗化的影响，60，90 mm/h雨强下坡面径流平均流速分别随降雨时间呈指数函数和幂函数下降趋势，弗劳德数亦表现出相同趋势；坡面径流阻力系数随降雨历时均呈对数函数增加；（4）长时间降雨侵蚀条件下径流含沙量与平均流速、弗劳德数、阻力系数、径流功率相关关系极显著，其中平均流速是径流含沙量变化过程中与其关系最为密切的水动力学参数，径流含沙量的变化深刻受到坡面径流平均流速的动力作用过程影响。

Abstract

In order to study the erosion characteristics and hydraulic mechanism of cinnamon soil slope during long-term rainfall erosion

10 consecutive rainfall experiments were carried out under 60

90 mm/h rainfall intensity respectively by the mean of indoor simulated rainfall experiment. The characteristics of runoff and sediment discharge

hydraulic parameters change

and the relationship between runoff sediment concentration and hydraulic parameters were discussed. The results showed that: (1) Under the premise that the same rainfall intensity and rainfall event

the change of runoff was smaller with the increase of rainfall events number

but the sediment discharge of the sub-rainfall changed greatly. Under the rainfall intensity of 60

90 mm/h

the variation coefficient of sediment yield was 23.94% and 59.88%

and the sediment yield of the 10th rainfall was only 59.74% and 22.28% to the first rainfall. (2) The average sediment yield rate of each rainfall increased with the rainfall intensity

the runoff sediment concentration showed the decrease trend of power function with rainfall time. (3) Influenced by morphological changes of rills and soil coarsening on the slope of brown soil

the average flow velocity of 60

90 mm/h showed the descending trend of exponential function and power function in the process of erosion

respectively. Froude number showed the same trend with average flow velocity. The Darcy-weisbach resistance coefficient increased logarithmically in the process of erosion under 60

90 mm/h rainfall intensity. (4) The correlation relationship between runoff sediment concentration and average flow velocity

Froude number

Darcy-weisbach resistance coefficient and runoff power were extremely significant

respectively. The average flow velocity was the most closely related hydrodynamic parameter in the process of runoff sediment concentration change. The change of runoff sediment concentration is deeply affected by the dynamic process of average flow velocity of slope runoff.

关键词

Keywords

references

Rose C W, Williams J R, Sander G C, et al. A mathematical model of soil erosion and deposition process:I. Theory for a plane element[J].Soil Science Society of America Journal,1983,47(5):991-995.

张光辉,卫海燕,刘宝元.坡面流水动力学特性研究[J].水土保持学报,2001,15(1):58-61.

张锐波,张丽萍,付兴涛.坡面侵蚀产沙与水力学特征参数关系模拟[J].水土保持学报,2017,31(5):81-86.

郭忠录,马美景,蔡崇法,等.模拟降雨径流作用下红壤坡面侵蚀水动力学机制[J].长江流域资源与环境,2017,26(1):150-157.

李少华,何丙辉,李天阳,等.紫色土丘陵区生物埂不同植被类型土壤分离水动力学特征[J].水土保持学报,2019,33(3):70-75.

肖丛宇,程金花,姜群鸥,等.台田措施下坡面流土壤侵蚀水动力学特征[J].水土保持学报,2019,33(4):10-15.

左烽林,钟守琴,冉卓灵,等.紫色土丘陵区新改土坡面产流产沙及水动力学参数特征[J].水土保持学报,2018,32(1):59-66.

师宏强,刘刚,谷举,等.不同坡度坡面径流输沙能力对集中流流量变化的响应[J].水土保持学报,2018,32(1):25-31.

孙继松,雷蕾,于波,等.近10年北京地区极端暴雨事件的基本特征[J].气象学报,2015,73(4):609-623.

霍云梅,毕华兴,朱永杰,等.QYJY-503C人工模拟降雨装置降雨特性试验[J].中国水土保持科学,2015,13(2):31-36.

郭太龙,卓慕宁,李定强,等.华南红壤坡面侵蚀水动力学机制试验研究[J].生态环境学报,2013,22(9):1556-1563.

Polyakov V O, Nearing M A. Sediment transport in rill flow under deposition and detachment conditions[J].Catena,2003,51(1):33-43.

罗榕婷,张光辉,曹颖.坡面含沙水流水动力学特性研究进展[J].地理科学进展,2009,28(4):567-574.

李永红,牛耀彬,王正中,等.工程堆积体坡面径流水动力学参数及其相互关系[J].农业工程学报,2015,31(22):83-88.

何玉广,信忠保,余新晓,等.模拟降雨条件下侧柏林地枯落物对坡面产流产沙的影响[J].水土保持学报,2017,31(3):27-32,38.

王栋栋,王占礼,张庆玮,等.草地植被覆盖度坡度及雨强对坡面径流含沙量影响试验研究[J].农业工程学报,2017,33(15):119-125.

白玉洁,张风宝,杨明义,等.急陡黄土坡面土壤剥蚀率变化的水动力学机制研究[J].水土保持学报,2018,32(4):1-6.

刘晓燕,刘昌明,党素珍.黄土丘陵区雨强对水流含沙量的影响[J].地理学报,2019,74(9):1723-1732.

林姿,史东梅,娄义宝,等.岩溶区煤矿工程堆积体边坡细沟发育及其水沙关系研究[J].土壤学报,2019,56(3):615-626.

张攀,姚文艺,唐洪武,等.黄土坡面细沟形态变化及对侵蚀产沙过程的影响[J].农业工程学报,2018,34(5):114-119.

He J J, Sun L Y, Gong H L, et al. Laboratory studies on the influence of rainfall pattern on rill erosion and its runoff and sediment characteristics[J].Land Degradation and Development,2017,28(5):1615-1625.

廖义善,卓慕宁,谢真越,等.崩岗崩积体坡面产沙与坡面形态的耦合影响[J].水土保持学报,2017,31(6):66-72.

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.

吴淑芳,刘政鸿,霍云云,等.黄土坡面细沟侵蚀发育过程与模拟[J].土壤学报,2015,52(1):48-56.

郭慧莉,孙立全,吴淑芳,等.黄土高原地区鱼鳞坑坡面侵蚀演化过程及水力学特征[J].土壤学报,2017,54(5):1125-1135.

翟艳宾,吴发启,王健,等.不同人工糙率床面水力学特性的试验研究[J].水土保持通报,2012,32(6):38-42.

王龙生,蔡强国,蔡崇法,等.黄土坡面细沟形态变化及其与流速之间的关系[J].农业工程学报,2014,30(11):110-117.

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.

Views

1054

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Response of Slope Runoff Hydrodynamic Characteristics to Gravel Coverage in Alpine Regions under Artificial Rainfall Simulation

Response of Erosion Processes and Hydrodynamic Indicators to Inflow Patterns on Engineering Accumulation Slopes

Effects of Different Mulching Methods on Soil Nutrient Loss in Cinnamon Soil

Hydrodynamic Mechanism of Variation in Soil Erosion Rate on Steep Loess Slopes

Effects of Honeysuckle on Soil Erosion on Gneiss Slopes Under Simulated Rainfall Conditions

Related Author

CHEN Yixin

WANG Haolin

ZHANG Zhixin

JIAO Juying

LIN Hong

LIAO Jun

YAN Zeng

XU Qian

Related Institution

State Key Laboratory of Soil and Water Conservation and Desertification Control，College of Soil and Water Conservation Science and Engineering （Institute of Soil and Water Conservation）， Yangling

Institute of Soil and Water Conservation， Chinese Academy of Sciences and Ministry of Water Resources， Yangling

Natural Resources Bureau of Cuona City， Xizang Autonomous Region， Cuona， Xizang

Institute of Soil and Water Conservation Science， Shanxi Agricultural University

College of Resources and Environment， Shanxi Agricultural University， Taigu

⁰