[1]LIU Shao-jun,ZHANG Jing-hong,ZHANG Ming-jie,et al.Research on Risk Zonation of Mountain Torrent Disasters in Hainan Island[J].Research of Soil and Water Conservation,2013,20(05):165-169.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 05
Page number:
165-169
Column:
Public date:
2013-10-28
- Title:
-
Research on Risk Zonation of Mountain Torrent Disasters in Hainan Island
- Author(s):
-
LIU Shao-jun1,2, ZHANG Jing-hong1,2, ZHANG Ming-jie1, CHE Xiu-fen1
-
1. Hainan Climate Center, Haikou 570203, China;
2. Key Laboratory of Meteorological Disaster Preventing and Reducing of South China Sea, Haikou 570203, China
-
- Keywords:
-
mountain torrent disaster; risk zonation; Hainan Island
- CLC:
-
S165+.25
- DOI:
-
-
- Abstract:
-
Terrain factor, water system factor, rainstorm index, landslides and debris flow density, integrated disaster were chosen to create torrent hazard risk assessment by AHP in 140 small watersheds of the Hainan Island, which were depended on the rainstorm risk data collection; percentage of population density, arable land, GDP, infrastructure were chosen to create the vulnerability indicators; by risk = hazard×vulnerability, the map of risk zonation of mountain torrents disasters was finished in ArcGIS, it was tested through the history of mountain torrent disaster data. The results showed that Hainan Island mountain torrent disaster risk zonation map in high-risk areas and second high risk areas covered about 72% of the historical mountain torrent disasters, which was in the reasonable range, which will play an important role in guiding Hainan Island mountain torrent disaster prevention and mitigation in Hainan Island.