摘要
以河南中东部3个村庄为研究区,通过入户调查的方法,得到2003-2009年农户冬小麦实际产量数据,利用直线滑动平均法去除农户冬小麦趋势产量,从中提取出气象产量,并与相邻气象站点的数据进行相关分析,找出与产量相关度较高的气象因子。结果表明,研究区内影响冬小麦产量的关键气象因子为播种-越冬前降水量、灌浆-乳熟期日照时数、灌浆期平均气温,这些因子在冬小麦生长中分别以苗期旱灾,灌浆-乳熟期阴雨寡照和灌浆期高温的形式影响产量。研究结果可为冬小麦生产提供技术支持。
The actual winter wheat yield data during 2003 -2009 were investigated in-home based on three villages , and the method of linear sliding average was used to remove trend yield of winter wheat, household in then the cli- matic yield was calculated. The correlation between climatic yield and meteorological data adjacent to three villages was analyzed. The results showed that precipitation of seeding-before winter, sunshine hours of filling-milk stage, and average temperature of filling stage were key meteorological factors to influence winter wheat yield, which appeared as drought disaster during seedling stage, cloudy drizzly conditions during filling-milk stage and high temperature during filling stage. The results could provide technical support for winter wheat production.
出处
《中国农业气象》
CSCD
北大核心
2012年第1期109-113,共5页
Chinese Journal of Agrometeorology
基金
农业部智能化农业预警技术重点开放实验室2010年开放课题(2010-DAEW-04)
关键词
农户调查
河南
冬小麦产量
气象灾害因子
Household investigation
Henan province
Winter wheat yield
Meteorological disaster factor
