PDF Download

[1]ZHONG Yanchuan,GUO Haiyan,XU Jinxia,et al.Characteristics of Debris Flow and Precipitation in Sichuan Province[J].Research of Soil and Water Conservation,2018,25(06):390-396.

Copy

Characteristics of Debris Flow and Precipitation in Sichuan Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 06 Page number: 390-396 Column: Public date: 2018-10-26

Title:: Characteristics of Debris Flow and Precipitation in Sichuan Province

Author(s):: ZHONG Yanchuan^1,2, GUO Haiyan^1,2, XU Jinxia², XU Yuanxin², MA Zhenfeng²; 1. Sichuan Provincial Climate Centre, Chengdu 610000, China;
2. Key Laboratory of Heavy Rain and Drought-Flood Disasters in Plateau and Basin of Sichuan Province, Chengdu 610000, China

Keywords:: Sichuan Province; debris flow; temporal and spatial distribution; precipitation; K-means cluster analysis

CLC:: P694

DOI:: -

Abstract:: In order to reveal the characteristics of distribution of debris flow and precipitation factor in Sichuan Province in recent decades, climate data relative to debris flows during 2008—2015 and rainfall were collected. Based on precipitation factors (annual rainfall, rainfall days, rainstorms, number of rainstorms, rainy season rainfall, day rainfall, pre-3 days effective precipitation and the ratio of pre-3 day effective precipitation and pre-9 day effective precipitation), we used PCA and K-means cluster analysis to get the characteristics and distribution of debris flow under different rainfall types. The debris flow in Sichuan Province distributed in Longmenshan fault zone，western plateau of Sichuan Province, Pannan (Panzhihua and Liangshan) and eastern mountainous area. There are specific conditions such as geology，topography，source and precipitation inducing the occurrences of debris flows. Pre-3 day effective precipitation can be considered as important factor about the threshold and risk division of debris flow. The results of the characteristics and distribution of debris flow from cluster analysis can provide the references for debris flow disaster prevention and risk mitigation in Sichuan Province.

References:: [1] 王裕宜,田冰,詹钱登,等.不同权重的前期和始发日降雨量与泥石流产沙规模的分析:特大型泥石流灾害发生的思考[J].中国地质灾害与防治学报,2009,20(1):32-38.
[2] Sepúlveda S A, Padilla C. Rain-induced debris and mudflow triggering factors assessment in the Santiago cordilleran foothills, Central Chile[J]. Natural Hazards, 2008,47(2):201-215.
[3] 高克昌,韦方强,崔鹏.降水空间特征与泥石流沟分布的关系[J].北京林业大学学报,2007,29(1):85-89.
[4] 刘海知,马振峰,范广洲,等.四川省典型区域滑坡泥石流与降水的关系[J].水土保持通报,2016,36(6):73-77.
[5] 赵万玉,陈晓清,游勇,等.四川省会理县"8·30"地震地质灾害分布特征及防治对策[J].水土保持通报,2010,30(4):143-147.
[6] 田冰,王裕宜.气候因素对蒋家沟泥石流输沙量的影响分析研究[J].水土保持研究,2015,22(5):218-222.
[7] 苏鹏程,刘希林,郭洁.泥石流灾害与降雨关系的初步探讨[J],自然灾害学报,2006,15(4):19-23.
[8] 沈玲玲,刘连友,杨文涛,等.基于TRMM降雨数据的四川省地质灾害降雨阈值分析[J].灾害学,2015,30(1):220-227.
[9] 李鸿雁,原若溪,王小军,等.吉林省泥石流易发区的降雨特征分析[J].自然资源学报,2016,31(7):1222-1230.
[10] 申重阳,王琪,吴云,等.2002.川滇菱形块体主要边界运动模型的GPS数据反演分析[J].地球物理学报,2002,45(3):352-361
[11] 王琪.中国大陆现今地壳运动研究[J].地震学报,2003,25(5):92-98.
[12] 赵万玉,陈晓清,游勇,等.四川省会理县"8·30"地震地质灾害分布特征及防治对策[J].水土保持通报,2010,30(4):143-147.
[13] 朱艳峰,宇如聪.川西地区夏季降水的年际变化特征及与大尺度环流的联系[J].大气科学,2003,27(6):1045-1056.
[14] 赵旋,李耀辉,齐冬梅.1961-2007年四川夏季降水的时空变化特征[J].冰川冻土,2013,35(4):959-967.
[15] 陈静静,姚蓉,文强,等.湖南省降雨型地质灾害致灾雨量阈值分析[J].灾害学,2014,29(2):42-47.

Similar References:

Memo

Last Update: 1900-01-01