中国农业气象 ›› 2012, Vol. 33 ›› Issue (04): 519-526.doi: 10.3969/j.issn.1000-6362.2012.04.008

• 论文 • 上一篇    下一篇

基于气候和土壤水分综合适宜度指数的冬小麦产量动态预报模型

代立芹,李春强,康西言,姚树然   

  1. 河北省气象科学研究所/河北省气象与生态环境重点实验室,石家庄050021
  • 收稿日期:2012-04-05 出版日期:2012-11-20 发布日期:2013-02-26
  • 作者简介:代立芹(1980-),女,河北唐山人,工程师,硕士,主要从事农业气象情报预报和农业气象灾害研究。Email:xiaodai1999@163.com
  • 基金资助:
    河北省气象局科研开发项目(11ky18);公益性行业(气象)科研专项(GYHY200906022);十二五农村领域国家科技计划课题(2011BAD32B04)

ynamic Forecast Model of Winter Wheat Yield Based on Climate and Soil Moisture Suitability

DAI Li qin,LI Chun qiang,KANG Xi yan,YAO Shu ran   

  1. Hebei Institute of Meteorological Science/Hebei Key Lab for Meteorology and Eco environment, Shijiazhuang050021, China
  • Received:2012-04-05 Online:2012-11-20 Published:2013-02-26

摘要: 利用河北省16个农气观测站1981-2010年逐日气象资料、土壤水分观测资料、冬小麦生育期观测资料、灌溉记录和8个冬小麦主产市产量资料,根据土壤水分平衡原理和模糊数据理论,建立了综合反映冬小麦生长期气象条件和土壤水分状况的气温-日照-土壤水分适宜度评价模型,并以旬为时间步长,建立了基于气温-日照-土壤水分适宜度指数的冬小麦产量动态预报模型。结果表明,气温-日照-土壤水分适宜度指数克服了气温-日照-降水适宜度指数仅考虑水分状况中降水条件的不足,能够客观反映冬小麦生长期的气象条件和土壤水分状况,与冬小麦产量变化量呈极显著相关(P<0.01),相关性高于气温-日照-降水适宜度指数;动态产量预报模型对1981-2008年历史拟合检验和2009-2010年预报试验的平均相对误差分别为6.1%和1.2%,误差较小,表明建立的冬小麦产量动态预报模型能够满足业务需求,具有较高应用价值。

关键词: 冬小麦, 产量动态预报, 气候适宜度, 土壤水分适宜度, 河北

Abstract: The integrative suitability model of temperature-sunshine-soil moisture and the dynamic forecast model of winter wheat yield every ten days were established,by using the fuzzy mathematics and soil water balance principle,based on daily meteorological data,moisture data, winter wheat growth data,irrigation data at 16 agro meteorological stations,and winter wheat yield data at 8 cities in Hebei province.The results showed that the integrative suitability of temperature sunshine-soil moisture reflected the weather and soil moisture conditions objectively.There was significant correlation between temperature-sunshine-soil moisture suitability and winter wheat yield (P<0.01), which was greater than the correlation between temperature-sunshine-precipitation suitability and winter wheat yield.The mean relative errors of the dynamic forecast model of winter wheat yield for historical forecasting from 1981 to 2008 and yield forecasting from 2009 to 2010 were 6.1% and 1.2% respectively,which indicated that the forecast model has higher applicable value to operational service.

Key words: Winter wheat, Dynamic forecast for yield, Climatic suitability, Soil moisture suitability, Hebei province

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