摘要
提出了作物夏旱度的计算公式和作物历史灾损量的估算方法,建立了夏旱对水稻、玉米产量影响评估模型。研究指出:(1)夏旱对贵州水稻、玉米的影响区域主要集中在中部以东地区;(2)伏旱的影响区域大于初夏旱;(3)干旱对水稻的影响区域大于玉米。
The purpose of this paper is to put forward the calculation formula of crop summer drought degree and the estimation method of crop historical reduction yield due to disaster, and to establish the area in hot days is larger than in beginning of summer and that the drought's influence area on rice is larger than that on maize and that when the summer drought degree of rice and maize is greater than 210 and 160 respectively, the reduction yield ratio is less 10 percent, namely the influence is insignificant.
出处
《气象科学》
CSCD
北大核心
2008年第2期232-236,共5页
Journal of the Meteorological Sciences
基金
贵州省国际合作重点项目计划(G字[2005]400110)
贵州省优秀科技人才省长专向基金(2005Z92,2005Z267)
关键词
作物夏旱度
灾损量
评估
贵州
Crop summer drought degree Yield reduction caused by diasister Estimation Guizhou