[1]LUO Yuting,TANG Chuan,CHEN Ming,et al.Temporal and Spatial Evolution Characteristics of Landslides in Debris Flow Basin in Meizoseismal Area[J].Research of Soil and Water Conservation,2020,27(03):336-341.
Copy
Temporal and Spatial Evolution Characteristics of Landslides in Debris Flow Basin in Meizoseismal Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
336-341
Column:
目次
Public date:
2020-04-20
- Title:
- Temporal and Spatial Evolution Characteristics of Landslides in Debris Flow Basin in Meizoseismal Area
- Keywords:
- meizoseismal area; debris flow; landslide; spatiotemporal evolution
- CLC:
- P642.23
- DOI:
- -
- Abstract:
- In order to explore the evolution characteristics of debris flow source in meizoseismal area, the multiphase remote sensing images of typical debris flow basin in Wenchuan meizoseismal area were used to interpret the landslide, establish a long time series data set of landslide in the research area, and analyze the relationship between evolution and elevation, slope, slope direction and distance from channel. Through the comparative analysis of the results of multi-phase interpretation, the spatiotemporal evolution characteristics of landslide bodies in the debris flow basin were obtained. The results show that the source areas of the five stage images from 2008 to 2017 are 15.32 km2, 9.04 km2, 7.66 km2, 4.40 km2, 3.63 km2, respectively, accounting for 38.25%, 22.58%, 19.13%, 10.99% and 9.06% of the research area, respectively, and the numbers of landslides are 1 797, 1 510, 1 245, 617 and 602, respectively. In addition, the evolutions of landslides in the study area follow the logarithmic function model; from 2008 to 2017, the height range of the concentrated development of material source of landslide bodies in the study area gradually changed from 1 400～1 600 m to 1 800～2 000 m, showing an evolutionary trend towards high altitude; and advantageous slope ranges of multiphase landslide development are 40°～45 °, edge slope aspects face towards the S, SE; the development of landslides is negatively correlated with the distance from the channel, and the control of provenance development by the distance from the channel also fluctuates greatly after the occurrence of large-scale debris flow events in the region. The research results have positive significance for enriching the theory of debris flow source evolution in earthquake area.
- References:
-
[1] 黄润秋,李为乐.汶川地震触发崩塌滑坡数量及其密度特征分析[J].地质灾害与环境保护,2009,20(3):1-7.
[2] 许冲,戴福初,姚鑫.汶川地震诱发滑坡灾害的数量与面积[J].科技导报,2009,27(11):79-81.
[3] Tang C, Zhu J, Li W L, et al. Rainfall-triggered debris flows following the Wenchuan earthquake [J]. Bulletin of Engineering Geology and the Environment, 2009,68(2):187-194.
[4] 黄润秋.汶川地震地质灾害后效应分析[J].工程地质学报,2011,19(2):145-151.
[5] 唐川.汶川地震区暴雨滑坡泥石流活动趋势预测[J].山地学报,2010,28(3):341-349.
[6] 蒋志林,朱静,常鸣,等.汶川地震区红椿沟泥石流形成物源量动态演化特征[J].山地学报,2014,32(1):81-88.
[7] 姚维益,常鸣,李为乐.都江堰龙溪河流域典型泥石流物源演化特征遥感监测[J].水土保持研究,2018,25(3):205-209.
[8] 常鸣,唐川,夏添,等.强震区泥石流堆积物的演化特征与方量估算模型[J].水利学报,2012,43(S2):117-121.
[9] 常鸣,唐川,蒋志林,等.强震区都江堰市龙池镇泥石流物源的遥感动态演变[J].山地学报,2014,32(1):89-97.
[10] 张雄.泥石流物源侵蚀运移特征及危险性评价研究[D].成都:成都理工大学,2015.
[11] Montgomery D R, Dietrich W E. A physically based model for the topographic control on shallow landsliding[J]. Water Resources Research, 1994,30(4):1153-1171.
[12] Godt J W, Baum R L, Savage W Z, et al. Transient deterministic shallow landslide modeling:requirements for susceptibility and hazard assessments in a GIS framework[J]. Engineering Geology, 2008,102(3/4):214-226.
[13] 孟祥瑞,裴向军,刘清华,等. GIS支持下基于因子分析法的都汶路沿线地质灾害易发性评价[J].中国地质灾害与防治学报,2016(3):106-115.
[14] 刘静,张智慧,文力,等.汶川8级大地震同震破裂的特殊性及构造意义:多条平行断裂同时活动的反序型逆冲地震事件[J].地质学报,2008,82(12):1707-1722.
[15] Kamp U, Growley B J, Khattak G A, et al. GIS-based landslide susceptibility mapping for the 2005 Kashmir earthquake region [J]. Geomorphology, 2008,101(4):631-642.
[16] Khazai B, Sitar N. Evaluation of factors controlling earthquake-induced landslides caused by Chi-Chi earthquake and comparison with the Northridge and Loma Prieta events[J]. Engineering Geology, 2004,71(1/2):79-95.
[17] Sato H P, Hasegawa H, Fujiwara S, et al. Interpretation of landslide distribution triggered by the 2005 Northern Pakistan earthquake using SPOT5 imagery[J]. Landslides, 2007,4(2):113-122.
[18] Lin C W, Shieh C L, Yuan B D, et al. Impact of Chi-Chi earthquake on the occurrence of landslides and debris flows:example from the Chenyulan River watershed, Nantou, Taiwan[J]. Engineering Geology, 2004,71(1/2):49-61.
- Similar References:
Memo
-
Last Update:
2020-04-30