Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (1): 210-214.doi: 10.11924/j.issn.1000-6850.2014-1803

Special Issue: 现代农业发展与乡村振兴 农业气象

Previous Articles     Next Articles

Risk Assessment and Zoning of Agricultural Drought Disaster in Hongdong County

Jia Xiangfeng1, Bai Liqin2, Li Bilong1   

  1. 1Meteorological Bureau of Hongdong County, Linfen Shanxi 041600; 2Meteorological Bureau of Xiangfen County, Linfen Shanxi 041500)
  • Received:2014-06-27 Revised:2014-06-27 Accepted:2014-09-18 Online:2015-03-18 Published:2015-03-18

Abstract: Drought is one of the major natural disasters. We used precipitation anomaly formula to analyze drought disaster to winter wheat in Hongdong 1980-2010, discussed the spacial and temporal characteristics of drought in different winter wheat growth stages, and concluded the rule of drought occurrence. In addition, we used the human environment risk assessment method, combining with GIS software, to study and zone the drought disaster risk index DDRI of winter wheat in all sites of Hongdong. The results showed that: (1) the frequency of drought and severe drought was the highest in the 1980s in Hongdong, followed by the beginning of the 21st century, and was the lowest in 1990s; (2) the high risk areas of winter wheat drought were mainly in Wanan and Quting, which should be the key areas for winter wheat drought prevention; low-risk and minor risk areas were mainly distributed in the northern and the central-southern part of Hongtong.