PDF Download

[1]YAN Yiquan,LIU Qi,DENG Dapeng,et al.Effect of Short-Time Heavy Rainfall on Soil Surface Loss/Underground Leakage of Karst Slope[J].Research of Soil and Water Conservation,2023,30(01):77-82.[doi:10.13869/j.cnki.rswc.20220428.002]

Copy

Effect of Short-Time Heavy Rainfall on Soil Surface Loss/Underground Leakage of Karst Slope

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 01 Page number: 77-82 Column: Public date: 2023-01-10

Title:: Effect of Short-Time Heavy Rainfall on Soil Surface Loss/Underground Leakage of Karst Slope

Author(s):: YAN Yiquan¹, LIU Qi^1,2, DENG Dapeng¹, LIAO Qidi¹; (1.Department of Geotechnical Engineering, School of Civil Engineering, Tongji University, Shanghai 200092, China; 2.Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai 200092, China)

Keywords:: karst rocky desertification; rainfall intensity alternation; laboratory simulation; soil and water loss

CLC:: S157.1

DOI:: 10.13869/j.cnki.rswc.20220428.002

Abstract:: In order to explore the influence of rainfall intensity changes in karst areas on surface water and soil loss and underground leakage, the rainfall characteristics of typical rocky desertification areas in the past 30 years were analyzed, and the influence of different rainfall intensities on soil surface loss/underground leakage was studied by using indoor rainfall simulation method. The results show that:(1)there was a positive correlation between rainfall intensity and soil surface loss/underground leakage, but the alternate order of rainfall intensity had an impact on soil surface loss/underground leakage; heavy rainfall was more likely to cause soil underground leakage at the late stage of rainfall process;(2)the time interval between short-term multiple rainfalls had a significant impact on soil surface loss and underground leakage; concentrated heavy rain was more likely to cause soil surface loss and underground leakage on karst slope than intermittent heavy rain; the longer the time of no rainfall between short-term multiple rainfalls was, the less soil erosion and leakage occurred;(3)in the early stage of rainfall, there was a positive correlation between rainfall intensity and soil surface loss rate; in the middle and late stages of rainfall, soil surface loss rate was not affected by the change of rainfall intensity; soil underground leakage rate increased with rainfall intensity during the whole rainfall process. These research results can provide technical support for accurate prevention and control of soil erosion in karst rocky desertification area.

References:: [1] 卢耀如.岩溶水文地质环境演化与工程效应研究[M].北京:科学出版社,1999.
[2] Zhou J,Tang Y Q,Zhang X H, et al. The influence of water content on soil erosion in the desertification area of Guizhou, China[J]. Carbonates and Evaporites, 2012,27(2):185-192.
[3] Bai Y E, Liu Q, Gu Z F, et al. The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China[J]. Carbonates & Evaporites, 2019,34:45-51.
[4] 王世杰.喀斯特石漠化:中国西南最严重的生态地质环境问题[J].矿物岩石地球化学通报,2003,22(2):120-126.
[5] Ying B, Xiao S Z, Xiong K N, et al.Comparative studies of the distribution characteristics of rocky desertification and land use/land cover classes in typical areas of Guizhou province, China[J]. Environmental Earth Sciences,2014,71(2):631-645.
[6] 蒋忠诚,李先琨,胡宝清,等.广西岩溶山区石漠化及其综合治理研究[M].北京:科学出版社,2011.
[7] 谢云,刘宝元,章文波.侵蚀性降雨标准研究[J].水土保持学报,2000,14(4):6-11.
[8] 付超.江西暖季短时强降水特征及湖泊效应分析[D].成都信息工程大学,2019.
[9] 杜波,唐丽霞,潘佑静,等.贵州喀斯特地区侵蚀性次降雨产流产沙特征研究[J].西南林业大学学报,2016,36(5):111-117.
[10] 伍红雨,王谦谦.近49年贵州降水异常的气候特征分析[J].高原气象,2003,22(1):65-70.
[11] 郭渠,陈佳,李瑞,等.重庆地区短历时强降水气候特征[J].干旱气象,2018,36(6):944-953.
[12] 白占国,万国江.滇西和黔中表土中⁷Be与¹³⁷Cs分布特征对比研究[J].地理科学,2002,22(1):43-48.
[13] 曾凌云,汪美华,李春梅.基于RUSLE的贵州省红枫湖流域土壤侵蚀时空变化特征[J].水文地质工程地质,2011,38(2):113-118.
[14] 熊康宁,李晋,龙明忠.典型喀斯特石漠化治理区水土流失特征与关键问题[J].地理学报,2012,67(7):878-888.
[15] Wei X P, Yan Y, Xie D, et al. The soil leakage ratio in the Mudu watershed, China[J]. Environmental Earth Sciences, 2016,75(8):721-732.
[16] Yan Y J, Dai Q H, Yuan Y F, et al. Effects of rainfall intensity on runoff and sediment yields on bare slopes in a karst area, SW China[J]. Geoderma, 2018,330:30-40.
[17] 王万忠,焦菊英,郝小品.中国降雨侵蚀力R值的计算与分布(Ⅱ)[J].水土保持学报,1996,2(1):29-39.
[18] 刘琦,白友恩,顾展飞,等.石漠化地区石灰岩和白云岩的溶蚀—蠕变特性试验研究:以贵州贞丰—关岭花江岩溶区为例[J].桂林理工大学学报,2017,37(3):399-404.
[19] 郑海金,杨洁,左长清,等.红壤坡地侵蚀性降雨及降雨动能分析[J].水土保持研究,2009,16(3):30-33.
[20] Peng T, Wang S J. Effects of land use, land cover and rainfall regimes on the surface runoff and soil loss on karst slopes in southwest China[J]. Catena, 2012,90(1):53-62.
[21] 刘琦,王涵,廖启迪,邓大鹏,姚邦杰.一种表层岩溶裂隙带土壤地表流失和地下漏失模拟装置[P].上海:CN112611850A2021-04-06.
[22] 熊康宁,黎平,周忠发.喀斯特石漠化的遥感:GIS典型研究[M].北京:地质出版社,2002.
[23] 任标.基于“三水”循环的石漠化地区土壤地表流失机理研究[D].上海:同济大学,2020.
[24] 孙三祥,张云霞.降雨及坡面径流模拟试验相似准则[J].农业工程学报,2012,28(11):93-98.

Similar References:

Memo

Last Update: 2023-01-10