主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

Journal of Meteorology and Environment ›› 2019, Vol. 35 ›› Issue (6): 139-144.doi: 10.3969/j.issn.1673-503X.2019.06.018

• BULLETINS • Previous Articles    

Risk assessment of maize drought in Heilongjiang province based on natural disaster risk theory

WU Shuang1,2, JIANG Li-xia1,2, LI Yu-guang1,2, GONG Li-juan1,2, TIAN Bao-xing1,2, WU Ying3   

  1. 1. Heilongjiang Institute of Meteorological Science, Harbin 150030, China;
    2. Innovation and Opening Laboratory of Regional Eco-Meteorology in Northeast, China Meteorological Administration, Harbin 150030, China;
    3. China Meteorological Administration Public Meteorological Service Center, Beijing 100081, China
  • Received:2018-11-16 Revised:2018-12-24 Published:2019-12-25

Abstract: In order to investigate the drought risk of maize for different areas of Heilongjiang province in China and provide a scientific foundation for maize disaster prevention and disaster management,drought risk index of maize was studied based on the meteorological data and maize growth data during 1971 to 2017 from 44 agricultural meteorological stations.The growth period of maize was divided into two parts based on the growth situation,named early stage (emergence to tasseling) and late-stage (tasseling to maturity),respectively.The natural disaster risk assessment method was applied to analyze the data and crop water deficit index was selected to evaluate the severity of drought.The indices of drought risk assessment model included dangerous,vulnerability,exposure,and emergency response and recovery.The weight coefficients of the 4 indices were induced to define the degree of influence of different indices.The drought risk zone of maize was analyzed based on the drought risk index in Heilongjiang province.The results show that the high values of risk index are distributed in the western of Heilongjiang province and the relatively high values of risk index are distributed in Shuangcheng District of Harbin and Zhaodong County.The southwest of Heilongjiang,including Zhaozhou,Zhaoyuan,Anda is middle risk areas.The low values of risk index are distributed in the Sanjiang plain of eastern Heilongjiang and Heihe,Yichun,Mudanjiang.This study could provide a scientific foundation for maize disaster prevention and disaster management.

Key words: Drought, Risk assessment, Risk zoning

CLC Number: