Erosion Characteristics of Yunnan Laterite Under Artificial Rainfall Conditions

HONG Bin; ZHANG Zulian; HUANG Ying; LIANG Jianjie; QIU Guangui

doi:10.13961/j.cnki.stbctb.2016.04.021

您当前的位置：

首页 >

文章列表页 >

Erosion Characteristics of Yunnan Laterite Under Artificial Rainfall Conditions

- Erosion Characteristics of Yunnan Laterite Under Artificial Rainfall Conditions
- Bulletin of Soiland Water Conservation Vol. 36, Issue 4, Pages: 118-123(2016)
- 作者机构：
  
  昆明理工大学电力工程学院,云南,昆明,650500
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.04.021
  CLC：
- Published：2016
- 稿件说明：
移动端阅览
HONG Bin, ZHANG Zulian, HUANG Ying, et al. Erosion Characteristics of Yunnan Laterite Under Artificial Rainfall Conditions[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 118-123.
DOI：

HONG Bin, ZHANG Zulian, HUANG Ying, et al. Erosion Characteristics of Yunnan Laterite Under Artificial Rainfall Conditions[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 118-123. DOI： 10.13961/j.cnki.stbctb.2016.04.021.

摘要

[目的

]

揭示降雨强度、坡度和坡长与云南红土坡面土壤侵蚀之间的关系，为云南红土地区土壤侵蚀的防治提供依据。[方法

]

采用室内人工模拟降雨试验及理论分析相结合的方法。[结果

]

（1）红土坡面侵蚀模数与降雨强度、坡度和坡长的相关关系显著（

>0.95）。（2）在相同坡度、坡长条件下，红土坡面侵蚀模数与降雨强度呈幂函数关系；（3）在相同降雨强度、坡长条件下，红土坡面侵蚀模数与坡度呈二次多项式关系；（4）在相同降雨强度、坡度条件下，红土坡面侵蚀模数与坡长呈二次多项式关系。[结论

]

云南红土坡面侵蚀模数随降雨强度的增大而增大；当坡度小于临界坡度21.4°时，坡面侵蚀模数随坡度的增大而增大，当坡度大于临界坡度21.4°时，坡面侵蚀模数随坡度的增大而减小；坡面侵蚀模数随坡长的增大而增大。

Abstract

[Objective] Revealing the slope erosion of Yunnan laterite as dependent variable caused by independent variables of rainfall intensity

slope gradient

slope length in order to provide bases for the prevention and control of soil erosion in Yunnan laterite area. [Methods] Artificial rainfall erosion was simulated indoor and analyzed theoretically. [Results] (1) The slope erosion of Yunnan laterite could be regressed significantly with rainfall intensity

slope gradient

slope length(R2>0.95). (2) Under certain slope gradient and length

the slope erosion modulus of laterite had power function relationship with rainfall intensity as independent variable. (3) Under certain rainfall intensity and slope length

the slope erosion modulus of laterite had a quadratic polynomial relationship with slope gradient. (4) Under certain rainfall intensity and slope gradient

the slope erosion modulus of laterite had a quadratic polynomial relationship with slope length. [Conclusion] The slope erosion modulus of Yunnan laterite increased with the increase of rainfall intensity. When the slope was less than the critical slope 21.4°

slope erosion modulus increased with the increase of slope. When the slope is greater than the critical slope 21.4°

slope erosion modulus decreased with the increase of slope. The slope erosion modulus increased with the increase of the slope length.

关键词

Keywords

references

耿晓东,郑粉莉,张会茹.红壤坡面降雨入渗及产流产沙特征试验研究[J].水土保持学报,2009,23(4):39-43.

杨晓俊.用人工降雨揭示降雨产流特征和降雨入渗规律[J].地下水,2007,29(2):18-21.

张建国,范建容,王玉宽,等.重庆市降雨侵蚀力(

值)的时空分布特征[J].水土保持研究,2004,11(1):56-59.

刘斌涛,陶和平,宋春风,等.1960-2009年中国降雨侵蚀力的时空变化趋势[J].地理研究,2013,32(2):245-256.

杨子生.滇东北山区坡耕地降雨侵蚀力研究[J].地理科学,1999,19(3):265-270.

曹文洪.土壤侵蚀的坡度界限研究[J].水土保持通报,1993,13(4):1-4.

刘青泉,陈力,李家春.坡度对坡面土壤侵蚀的影响分析[J].应用数学和力学,2001,22(5):449-457.

李全胜,王兆骞.坡面承雨强度和土壤侵蚀临界坡度的理论探讨[J].水土保持学报,1995,9(3):50-53.

张会茹,郑粉莉.不同降雨强度下地面坡度对红壤坡面土壤侵蚀过程的影响[J].水土保持学报,2011,25(3):40-43.

张怡,丁迎盈,王大安,等.坡度对侵蚀产沙及其粒径分布的影响[J].水土保持学报,2015,29(6):25-29.

王占礼,王亚云,黄新会,等.黄土裸坡土壤侵蚀过程研究[J].水土保持研究,2004,11(4):84-87.

孙亚平,张科利,唐克丽.坡长对侵蚀产沙过程影响的模拟研究[J].水土保持学报,2001,15(2):7-20-24.

南京水利科学研究院.SL237-1999 土工试验规程[S].北京:水利水电出版社,2000.

Wischmeier W H, Smith D D.Rainfall energy and its relationship to soil loss[J].Transactions of American Geophysical Union, 1958,39(2):285-291.

Wischmeier,W H.A rainfall erosion index for universal soil loss equation[J].Soil Science Society Proceedings, 1959,23(3):246-249.

周佩华,窦保璋,孙清芳.降雨能量的试验研究初报[J].水土保持通报,1981,1(1):51-56.

尚佰晓,王瑄,陶伟,等.沈阳市天然降雨雨滴特征研究[J].水土保持研究,2008,15(6):139-141.

刘和平,王秀颖,刘宝元.短坡条件下侵蚀产沙与坡长的关系[J].水土保持学报,2011,25(2):1-6.

Lal R. Soil degradative effects of slope length and tillage methods on Alfisols in Western Nigeria(I): Runoff, erosion and responses [J].Land Degradation & Development, 1997, 8(3): 201-219.

Views

1076

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experiment Study of Soil Erosion Dynamic Processes on Loess Slope

Effect of Slope Gradient on Rill Erosion Under Different Rainfall Intensities and Slope Lengths

Experimental Study of Runoff Processes on Bare Loess Hillslope

Experimental Study of Sheet Flow Erosion Processes on Loess Hillslope

Hydraulic Properties of Shallow Flow in Coarse Sediment Region of Yellow River Middle Reaches

Related Author

GAO Su-juan

WANG Zhan-li

HUANG Ming-bin

ZHANG Kuan-di

LIU Jun-e

YUAN Yin

CHEN Hao

CHEN Jun-jie

Related Institution

西北农林科技大学资源环境学院, 陕西杨凌

中国科学院水利部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

西北农林科技大学水利与建筑工程学院, 陕西杨凌

Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences

Research Center of Water and Soil Conservation, Huazhong Agricultural University

⁰