关键词: 冬枣, 果实生长期, 气象灾害, 防御措施

Abstract: Meteorological data such as temperature，precipitation，wind speed and weather phenomena in Hebei Huanghua during 1990-2009 were used to analyze the basic characteristics of meteorological elements of Chinese Jujube Dongzao in various stages of growing season by statistical methods Comparative analysis and D value analysis methods were used to find out the main meteorological disasters during the growth period of Chinese Jujube Dongzao in Huanghua.The research results showed that meteorological disasters are mainly high temperature,strong winds,continuous rain,hail and other weather disasters in the growth periodIn this paper,defensive countermeasures of the main meteorological disasters during period of growth of jujube are put forward in order to achieve profit while avoid loss,ensuring high yield and quality.

Key words: Winter Jujube, Fruit growth, Meteorological disasters, Defensive countermeasures