[1]HUANG Jing,DI Bao-feng,BIAN Jing-hong,et al.Analysis on the Spatial Distribution Characteristics and Human Driving Forces of Mountain Hazards in Liangshan Prefecture[J].Research of Soil and Water Conservation,2014,21(06):278-283.
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Analysis on the Spatial Distribution Characteristics and Human Driving Forces of Mountain Hazards in Liangshan Prefecture
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 06
Page number:
278-283
Column:
Public date:
2014-12-28
- Title:
- Analysis on the Spatial Distribution Characteristics and Human Driving Forces of Mountain Hazards in Liangshan Prefecture
- CLC:
- X43
- DOI:
- -
- Abstract:
- Based on the data of mountain hazards from 1970 to 2004, GIS spatial grid analysis was used to analyze the spatial distribution characteristics of mountain hazards in Liangshan Prefecture, which is located in southwestern Sichuan, evaluate mountain hazards risk and divide risk levels. The results showed that most mountain hazards were expressed by the zonation along the river, mainly in Anning River Basin and Jinsha River Basin. According to the occurrence frequency of disasters, Liangshan Prefecture was classified into four regions: the very high frequency region, high frequency region, moderate frequency region and low frequency region, which account for 5.0%, 8.0%, 14.1% and 72.9% of total area, respectively. By analyzing the correlation between mountain hazards and human driving forces (economic, demographic characteristics and land-use type etc.), the response relationship between them was obtained. According to the correlation analysis, it can be seen that the mountain disaster risk and the population density had a significant positive correlation. What’s more, unreasonable land use was another important driving force on mountain hazards, especially dry lands (sloping lands) as well as transportation lands. These results will play an important role in preventing and mitigating mountain hazards caused by human activities, and the method used in this study will play guiding role in mountain hazard risk assessment and management.
- References:
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