| 泥石流预报中前期降水量与始发日降水量的权重关系——以云南省蒋家沟为例 |
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| 引用本文： | 田冰,王裕宜,洪勇.泥石流预报中前期降水量与始发日降水量的权重关系——以云南省蒋家沟为例[J].水土保持通报,2008,28(2):71-75. |
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| 作者姓名： | 田冰 王裕宜 洪勇 |
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| 作者单位： | 1. 河北师范大学,资源与环境科学学院,河北石家庄,050016;中国科学院,山地灾害与地表过程重点实验室,中国科学院,东川泥石流观测研究站,四川成都,610041;中国科学院,水利部,成都山地灾害与环境研究所,四川成都,610041
2. 中国科学院,山地灾害与地表过程重点实验室,中国科中国科学院,水利部,成都山地灾害与环境研究所,四川,成都,610041 |
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| 摘 要： | 利用云南省蒋家沟1995-1997年43场泥石流数据和降水资料,详细分析了泥石流暴发的前期降水与始发日降水的权重关系.研究发现,前期降水和始发日降水是泥石流启动的主要因素.依据它们之间不同的权重关系,将蒋家沟泥石流分为前期降水型、强降水型和特殊型3种形式.不同权重降水下的泥石流输沙与降水量之间均呈现出较好的相关性.从泥石流出现的规模和数量看,前期降水型泥石流是该地区的主要类型.
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| 关 键 词： | 泥石流 前期降水与始发日降水 权重关系 输沙量 泥石流预报 中前期 日降水量 权重关系 云南省 蒋家沟泥石流 Prediction Debris Flow Precipitation Process Rainfall Relation Weighted Yunnan Province Gully 类型 地区 模和数 相关性 泥石流输沙 |
| 文章编号： | 1000-288X(2008)02-0071-05 |
| 收稿时间： | 8/1/2007 12:00:00 AM |
| 修稿时间： | 2007年8月1日 |
Weighted Relation Between Antecedent Rainfall and Process Precipitation in Debris Flow Prediction——A Case Study of Jiangjia Gully in Yunnan Province |
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| TIAN Bing,WANG Yu-yi and HONG Yong.Weighted Relation Between Antecedent Rainfall and Process Precipitation in Debris Flow Prediction——A Case Study of Jiangjia Gully in Yunnan Province[J].Bulletin of Soil and Water Conservation,2008,28(2):71-75. |
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| Authors: | TIAN Bing WANG Yu-yi and HONG Yong |
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| Institution: | College of Resources and Environment Science,Hebei Normal University,Shijiazhuang,Hebei 050016,China;Key Laboratory of Mountain Hazards and Earth Surface Process,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Key Laboratory of Mountain Hazards and Earth Surface Process,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Key Laboratory of Mountain Hazards and Earth Surface Process,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China |
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| Abstract: | Based on the data observed for debris flow and precipitation from 1995 to 1997 in Jiangjia gully,Yunnan Province,different weighted relations between antecedent rainfall and process precipitation are analyzed.The analyses indicate that antecedent rainfall and process precipitation are the critical factors to trigger debris flow.Debris flow may be divided into three types based on different weighted relations between antecedent rainfall and process precipitation.Moreover,the relation between sediment yield of debris flow and rainfall under different rainfall conditions is discussed and a sound result is obtained. |
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| Keywords: | debris flow antecedent rainfall and process precipitation weighted relation sediment yield |
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