中国农业气象 ›› 2010, Vol. 31 ›› Issue (S1): 132-136.

• 论文 • 上一篇    下一篇

暴雨灾害对福建水稻产量影响的灾损评估方法

陈家金;林晶;李丽纯;徐宗焕;潘卫华;   

  1. 福建省气象科学研究所;
  • 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    中国气象局小型业务项目(2012209);; 福建省气象局开放式气象科学研究基金项目(2009K01)

Study on Damage Assessment Method of the Rice Yield Affected by Rainstorm Disasters in Fujian

CHEN Jia-jin,LIN Jing,LI Li-chun,XU Zong-huan,PAN Wei-hua(Fujian Institute of Meteorological Science,Fuzhou 350001,China)   

  • Online:2010-12-20 Published:2010-12-20

摘要: 利用福建省历年暴雨和水稻产量资料,确定水稻产量灾损量的表征方法,分析暴雨对水稻单产影响的关键时段和致灾因子,在致灾因子中首次提出效力暴雨量的概念,充分考虑暴雨强度和水稻不同生长发育期抗灾力的不同影响,建立暴雨对早稻和中晚稻单产影响的灾损评估模型,从而形成暴雨灾害对福建水稻产量影响的一套完整灾损评估方法。利用评估模型对2007年福建暴雨发生区域的水稻单产进行灾损预估及检验。结果表明:早稻单产灾损率的预估误差的绝对值在0.08~5.15个百分点,平均误差为2.15个百分点;中晚稻单产灾损率的预估误差的绝对值在0.02~3.77个百分点,平均误差为1.9个百分点,预估精度较高,灾损评估方法可行。

关键词: 暴雨, 水稻产量, 灾损评估

Abstract: Based on the historical data of rainstorm and rice yield over the years,the assessment method of yield loss in rice yield was defined.The conception of effective rainfall of rainstorm was proposed the first time in the disaster-causing factors through analyzing the key time and disaster-causing factors of the impact on rice yield.By fully considering the different influence of rainstorm intensity and the disaster resistant capability of rice in different growth stages,it established a loss estimation model for the effects of rainstorm on early rice and middle-late rice yield,and formed a complete set of the loss assessment of the impact of rainstorm disaster on rice yield in Fujian.The rice yield loss in the torrential rain area of Fujian in 2007 was predicted and tested by means of the evaluation model.The results showed that the absolute values of the prediction error of early rice yield loss were between 0.08% and 5.15%,the average error was 2.15%.The absolute values of the prediction error of the middle-late rice were between 0.02% and 3.77%,the average error was 1.9%.The precision was high,so the damage assessment method was feasible.

Key words: Rainstorm, Rice yield, Damage assessment