Low Temperature Freezing Disaster: Risk Assessment Based on GIS

doi:10.11924/j.issn.1000-6850.casb16090042

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (19): 116-121.doi: 10.11924/j.issn.1000-6850.casb16090042

Special Issue: 农业气象

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Low Temperature Freezing Disaster: Risk Assessment Based on GIS

Shi Chunyan¹, Zhang Qiandong¹, Zhang Yanfei¹, Liu Peng², Zhang Lu¹

(¹Changqing District Meteorological Bureau of Jinan City, Jinan 250399; ²Shanxian Meteorological Bureau of Heze, Shanxian Shandong 274300)

Received:2016-09-08 Revised:2017-03-04 Accepted:2017-03-07 Online:2017-07-11 Published:2017-07-11

Abstract

Abstract: To mitigate low temperature freezing disaster and provide a basis for decision making on disaster prevention, based on disaster formation mechanism and risk assessment principle, we used climatic data, historical disaster data, geographic information data and social economy data to analyze 4 evaluation indexes (risk, susceptibility, vulnerability and the ability to prevent and mitigate natural disasters) and carry out risk assessment and comprehensive regionalization of low temperature freezing disaster in Changqing through GIS, AHP and weighting comprehensive evaluation method. The results showed that: the low temperature freezing disaster had no regular distribution law with strong spatialization and high comprehensive risk; the areas with the highest comprehensive risk were Wenchang, Wufengshan and parts of Shuangquan, which belonged to the key areas of low temperature freezing disaster prevention; light and low risks were mainly distributed in Pingan, Wande, Mashan and some parts of Guyunhu. The results can provide references for planning of crop planting and decision making on freezing disaster prevention.

CLC Number:

S426

Shi Chunyan,Zhang Qiandong,Zhang Yanfei,Liu Peng and Zhang Lu. Low Temperature Freezing Disaster: Risk Assessment Based on GIS[J]. Chinese Agricultural Science Bulletin, 2017, 33(19): 116-121.

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Low Temperature Freezing Disaster: Risk Assessment Based on GIS

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