北京师范大学学报（自然科学版）2017，Vol.53Issue(1)：99-104,6.DOI:10.16360/j.cnki.jbnuns.2017.01.017
湖南省水稻气象灾害多致灾因子时空特征研究
Temporal-spatial distribution characteristics of paddy rice meteorological multi-hazard in Hunan Province
摘要
Abstract
Drought,flood,heat damage and cold injury in the growth period of double-season paddy rice in Hunan Province from 1981 to 2013 were investigated.Temporal-spatial distribution and combination features of hazard type and frequency were examined.Two to three types of hazards were found to likely occur in a single growth period.Drought-heat combination held the highest frequency of 22.87％.In another growth period,4 ～ 6 hazards were most likely to occur.High event frequency center was found to be in eastern Hunan Province.Multi-hazard frequency in a single growth period could be well fitted with Poisson distribution.Poisson parameters increased from west to east with a maximum value of 5.5 times.Features of hazard type and frequency clearly indicated that Hunan Province could be regionalized into 8 multi-hazard regions.In the Dongting Lake area and central Hunan,the major production regions for paddy rice,rice cultivation was found to be vulnerable to drought and heat damage.关键词
水稻/多致灾因子/时空分布/湖南Key words
paddy rice/multi-hazard/temporal-spatial distribution/Hunan分类
天文与地球科学引用本文复制引用
李懿珈,叶涛,王尧,史培军..湖南省水稻气象灾害多致灾因子时空特征研究[J].北京师范大学学报（自然科学版）,2017,53(1):99-104,6.基金项目
国家自然科学基金资助项目(41321001) （41321001）
地表过程与资源生态国家重点实验室资助项目(2015-ZY-17) （2015-ZY-17）
