海南岛台风灾害综合危险评价.pdf

2021 年 第 21 卷 第 18 期 科学技术与工程 ISSN 1671—1815
and disaster causing factors, the comprehensive risk assessment model oZ typhoon disaster in Hainan Is ­
land was constructed by using typhoon data from 1980 to 2019 in Hainan Island , and the comprehensive risk assessment model was di­
vided into 4 years according to 10-year inteovl. The results show as follows. The spatial sensitivity of disaster pregnant environment has
a decreasing Wend from the eastern and southwestern coastal areas to the inland. Most oZ them ve medium and low sensitive areas, ao-
counting for 30. 88% oZ the total area, and the high sensitive areas are 1 495. 02 km2, accounting for 4. 42% . The hazard degree oZ
disaster is increasing, decreasing and increasing with Ome, and the spatial disWiVuOon is decreasing graduVly from coastal to inland.
Fom 2°°° to 2009, the area with low risk degree oZ disaster causing factors is the widest, with v area oZ 25 624. 85 km2, accounting
for 75. 7% . Fom 2°1° to 2019, the scope with high risk degree oZ disaster causing factors is the widest, accounting for 34. 78% oZ the
total area. The comprehensive risk oZ typhoon disaster shows a decreasing-increasing trend with Ome, and O has the characteristics oZ
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