Relationship Between Knickpoint and Stability of Valley Slope Based on Hypsometric Integral Value

GUO Chen-wen; LIU Tian-xiang; YAO Ling-kan

doi:10.11988/ckyyb.20190221

PDF(5550 KB)

Journal of Changjiang River Scientific Research Institute ›› 2020, Vol. 37 ›› Issue (6) : 70-76. DOI: 10.11988/ckyyb.20190221

ENGINEERING SAFETY AND DISASTER PREVENTION

Relationship Between Knickpoint and Stability of Valley Slope Based on Hypsometric Integral Value

GUO Chen-wen¹, LIU Tian-xiang¹, YAO Ling-kan²

Author information +

History +

Abstract

The influence of river knickpoint on the distribution of geological hazards in river basin was analyzed quantitatively using the hypsometric integral (HI) method. First of all, the correlation between HI values and landslide density in the central Himalayas and the Qingyi River basin was calculated using ArcGIS and MatLab software; subsequently the causes of knickpoints of the Yarlung Zangbo River, the Indus River, the Boqu River, Majiazangbo River, the Pengqu-Arun River and the Kali-Gandaki River in the Himalayas region were analyzed; finally the HI values of watersheds within the knickpoints’ upstream and downstream areas of all the rivers were calculated. The results are concluded as follows: (1) the HI value is in a good positive correlation with landslide density, with all correlation coefficients greater than 0.5; (2) the HI value in the upstream basin of knickpoint is smaller than that in the downstream basin, indicating that the overall stability of upstream river basin is stronger than that of downstream; (3) for knickpoint of tectonic origin, the HI values of downstream and upstream river basins are quite different (the minimum is 0.06), while for knickpoint of river blocking origin, the difference of HI values between upstream and downstream is small (the maximum is 0.02). The results provide a reference for macroscopically and quantitatively determining the stability of valley slope.

Key words

knickpoint / stability of valley slope / hypsometric integral / Tibetan Plateau / landscape revolution / landslide

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

GUO Chen-wen, LIU Tian-xiang, YAO Ling-kan. Relationship Between Knickpoint and Stability of Valley Slope Based on Hypsometric Integral Value[J]. Journal of Changjiang River Scientific Research Institute. 2020, 37(6): 70-76 https://doi.org/10.11988/ckyyb.20190221

References

[1] DONG S, ZHANG P, ZHANG H, et al. Drainage Responses to the Activity of the Langshan Range-front Fault and Tectonic Implications[J]. Journal of Earth Science, 2017, 29(11):193-209.
[2] HE C, CHENG Y, GANG R, et al. Geomorphological Signatures of the Evolution of Active Normal Faults along the Langshan Mountains, North China[J]. Geodinamica Acta, 2018, 30(1): 163-182.
[3] AHMED M F, ALI M Z, ROGERS J D, et al. A Study of Knickpoint Surveys and Their Likely Association with Landslides along the Hunza River Longitudinal Profile[J]. Environmental Earth Sciences, 2019, 176(78): 132-149.
[4] GARDNER T W. Experimental Study of Knickpoint and Longitudinal Profile Evolution in Cohesive, Homogeneous Material[J]. Geological Society of America Bulletin, 1983, 94(5): 664-672.
[5] 李志威,汤韬,袁昕亚,等.堰塞体堵江对雅鲁藏布大峡谷地区河流地貌的影响[J/OL].raybet体育在线院报. http://kns.cnki.net/kcms/detail/42.1171.TV.20191008.1057.028.html.
[6] WANG Z Y, LEE J. River Dynamics and Integrated river Management[M]. Beijing: Tsinghua University Press, 2015:171.
[7] 余国安,王兆印,黄河清,等.崩滑堰塞坝(湖)的地貌环境效应[J].地球科学进展, 2010, 25(9):934-940.
[8] WANG Z Y, YU G A, BRIERLEY G, et al. Stream Networks and Knickpoints in the Sanjiangyuan Region[M]//GARY B, LI X L, CHEN G. Landscape and Environment Science and Management in the Sanjiangyuan Region. Xining: Qinghai People’s Publishing House, 2010: 27-41.
[9] KORUP O, MONTGOMERY D R, HEWITT K. Glacier and Landslide Feedbacks to Topographic Relief in the Himalayan Syntaxes[J]. PANS, 2010,107(12): 5317-5322.
[10]DAVIS W M. The Geographical Cycle[J]. The Geographical Journal, 1899, 14(5): 481-504.
[11]陈远川,陈洪凯,唐红梅.基于地貌演化阶段的公路泥石流危险性评价[J].长安大学学报(自然科学版),2013,33(5):45-51.
[12]谢吉尊,冯文凯,杨少帅,等.则木河断裂带活动特征和地质灾害对地貌演化的影响:以鹅掌河流域为例[J].工程地质学报,2017,25(3):772-783.
[13]郭富赟,孟兴民,陈冠,等.白龙江流域地貌演化及其对地质灾害的影响[J].人民长江,2016,47(7):37-43,49.
[14]王汝兰,蒲阳,罗明良,等.延河流域地貌发育阶段的定量分析[J].干旱区资源与环境,2018,32(7):172-179.
[15]李玉辉,丁智强,吴晓月.基于Strahler面积-高程分析的云南石林县域喀斯特地貌演化的量化研究[J].地理学报,2018,73(5):973-985.
[16]章桂芳,陈凯伦,张浩然,等.基于DEM的丹霞地貌演化阶段划分[J].中山大学学报(自然科学版),2018,57(2):12-21.
[17]KARGEL J S, LEONARD G J, SHUGAR D H, et al. Geomorphic and Geologic Controls of Geo-hazards Induced by Nepal’s 2015 Gorkha Earthquake[J]. Science, 2015, 351(6269): aac8353.
[18]HARP E L,KEEFER D K,SATO H P,et al. Landslide Inventories: The Essential Part of Seismic Landslide Hazard Analyses[J]. Engineering Geology,2011,122(1): 9-21.
[19]XU C. Preparation of Earthquake-triggered Landslide Inventory Maps Using Remote Sensing and GIS Technologies: Principle and Case Studies[J]. Geoscience Frontiers, 2015, 91(6):825-836.
[20]STRALHER A. Hypsometric (Area-Altitude) Analysis of Erosional Topography[J]. Geological Society of America Bulletin,1952, 63: 1117-1142.
[21]常直杨,王建,白世彪,等.面积-高程积分值计算方法的比较[J].干旱区资源与环境,2015,29(3):171-175.
[22]赵洪壮,李有利,杨景春,等.面积高度积分的面积依赖与空间分布特征[J].地理研究,2010,29(2):271-282.
[23]中国科学院青藏高原综合科学考察队.西藏地貌[M]. 1版. 北京:科学出版社,1983:66.
[24]AHMED M F, ROGERS J D, ISMAIL E H. Knickpoints along the Upper Indus River, Pakistan: An Exploratory Survey of Geomorphic Processes[J]. Swiss Journal of Geosciences, 2018, 111(1/2): 191- 204.
[25]AHMED M F, ROGERS J D, ISMAIL E H. Historic Landslide Dams along the Upper Indus River, Northern Pakistan[J]. Natural Hazards Review, 2015,16(3): 04014029.
[26]张康,王兆印,刘怀湘,等.裂点发育及其对堰塞坝的稳定性影响[J].山地学报, 2011, 29(4):474-482.