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[1]TIAN Bing,WANG Yuyi.Research for the Influence of Climatic Factors on Sediment Runoff of Debris Flow in Jiangjia Ravine[J].Research of Soil and Water Conservation,2015,22(05):218-222.

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Research for the Influence of Climatic Factors on Sediment Runoff of Debris Flow in Jiangjia Ravine

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 05 Page number: 218-222 Column: Public date: 2015-10-28

Title:: Research for the Influence of Climatic Factors on Sediment Runoff of Debris Flow in Jiangjia Ravine

Author(s):: TIAN Bing^1,2, WANG Yuyi³; 1. College of Resources & Environmental Science, Hebei Normal University, Shijiazhuang 050024, China;
2. Hebei Key Laboratory of Environmental Change and Ecological Construction, Shijiazhuang 050024, China;
3. Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu 610041, China

Keywords:: correlation analysis; debris flow; sediment runoff; climate change

CLC:: P642.23;P333.4

DOI:: -

Abstract:: Based on the observation data of debris flow in Jiangjia Ravine from 1965 to 2007 and the climatological data in Huize meteorological observation station from 1961 to 2005, the correlation between debris flow sediment runoff and climatic factor was analyzed using correlation analysis method. The results showed that there was a positive correlation between the sediment runoff of Jiangjia Gully debris flow and annual rainfall, annual extreme rainfall, and summer extreme rainfall. The correlation coefficient passed the confidence level (α=0.01, α=0.05 ). The sediment runoff increased with the increase of rainfall. However, the increase in summer temperature will affect the soil moisture of the formation of debris flow. But the effect of rainfall has larger influence than the temperature. Therefore, under the background of climate change characterized as the warming and wetting, the sediment runoff of debris flow shows the increasing trend.

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