Journal of Arid Meteorology ›› 2012, Vol. 30 ›› Issue (1): 71-76.

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Analysis of Wheat Yield Based on Drought Index in Ningxia

DUAN Xiaofeng1,2,LIU Jing1,2,ZHANG Xiaoyu1,2,LI Hongying1,2   

  1. 1. Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan750002,China; 2. Institute of Meteorological Sciences of Ningxia,Yinchuan 750002,China
  • Revised:2012-12-06 Online:2012-02-29 Published:2012-03-30

基于旱灾指数的宁夏小麦产量分析

段晓凤1,2刘静1,2张晓煜1,2李红英1,2袁海燕1,   

  1. 1. 宁夏气象防灾减灾重点实验室,宁夏银川750002; 2. 宁夏气象科学研究所,宁夏银川750002
  • 作者简介:段晓凤( 1983 - ) ,内蒙古呼和浩特人,硕士,助工,主要从事农业气象、应用气象研究. E - mail: dxl_1127@163. com
  • 基金资助:

    科技部农业科技成果转化资金项目( 2006GB24160429) 、科技部社会公益研究专项( 2005DIB3J103) 资助

Abstract:

Based on analysis of historic drought events,an integrated drought index which can reflect soil moisture and precipitation was established in this paper,and the accumulative drought index model was structured for monitoring and estimating the dry zone in the middle region of Ningxia and winter wheat yield in the south mountain area month by month. The results show that the model can reflect drought occurred in past years and evaluate winter wheat yield well and truly. The model is simple and suitable for estimating drought disaster in eastern region of Northwest China.

Key words: drought index, wheat, yield

摘要:

在分析历年旱灾情况的基础上,建立了反映土壤水分供应状况和降水状况的综合旱灾指数,并以此为框架构建了旱灾累计指数评估模型,可用于逐月监测、评估宁夏中部干旱带和南部山区各县冬小麦产量。结果表明,这些模型能够较准确地反映历年旱情和评估小麦产量,并且方法简便,适合于西北地区东部干旱监测与灾害评估。

关键词: 旱灾指数, 小麦, 产量评估

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