干旱地区农业研究Issue(4)：125-133,9.DOI:10.7606/j.issn.1000-7601.2015.04.20
利用 CERES －Wheat 模型分析冬小麦所需灌溉量的时空变化--以河南省为例
Evaluation of irrigation water requirement of winter wheat using the CERES -Wheat Model---A case study in Henan Province
摘要
Abstract
Soil water balance of CERES -Wheat was assessed for Zhengzhou of Henan province .Based on valida-tion of water balance ,daily weather data of 16 stations in Henan to model irrigation requirement of crop during 1961—2009 ,and temporal and spatial characteristics of irrigation requirement of crop were analyzed .Irrigation requirement at every stage was compared between the northern and the southern regions in Henan .The results showed :(1 ) the irrigation requirement of crops in the northern regions was more than that in the southern regions in Henan ,with irrigation amounts being 307~499 mm for dry years ,256~432 mm for normal years ,and 169~372 mm for wet years ;(2 ) irrigation re-quirement of crops showed decreasing trend in most of the eastern region .Significant correlation between irrigation re-quirement and evapotranspiration existed ;(3 ) The irrigation requirements reached the highest level in the apical spikelet formation and mature period ;in some year with less precipitation ,the winter wheat in the southern regions is similar to in the northern regions . Even for years with more precipitation , irrigation requirement was necessary at the stage apical spikelet formation .关键词
CERES-Wheat模型/灌溉量/干旱/冬小麦Key words
CERES -Wheat model/irrigation requirement/drought/wheat分类
农业科技引用本文复制引用
赵海燕,侯美亭,王志伟..利用 CERES －Wheat 模型分析冬小麦所需灌溉量的时空变化--以河南省为例[J].干旱地区农业研究,2015,(4):125-133,9.基金项目
国家自然科学基金（41201044）；公益性行业（气象）科研专项（GYHY201306038）；山西省科技攻关计划（20130311037－2）；山西省气象局重点课题 （）
