Advances in Earth Science ›› 2013, Vol. 28 ›› Issue (6): 627-636. doi: 10.11867/j.issn.1001-8166.2013.06.0627

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Summary on the Main Agro-Meteorological Disasters in Northern China Index Research

Wang Lianxi,Kong Jianwen,Li Qi,Xiao Weiyu   

  1. 1.Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control,Nanjing University of Information Science & Technology,Nanjing 210044,China; 2.School of Environmental Science and Engineering, Nanjing University of Information Science & Technology,Nanjing 210044,China
  • Received:2012-11-13 Revised:2013-03-25 Online:2013-06-10 Published:2013-06-10

Wang Lianxi,Kong Jianwen,Li Qi,Xiao Weiyu. Summary on the Main Agro-Meteorological Disasters in Northern China Index Research[J]. Advances in Earth Science, 2013, 28(6): 627-636.

This paper summarizes some common agrometeorological disasters in Northern China: drought, dryhot wind, cold damage and frost injury. In view of these four types of disasters, we classify and describe their indexes. Among them, the introduction of drought indexes are more detailed and comprehensive. The drought indexes are divided into five categories that are monitoring, defense, economic losses, the level of socioeconomic development and the progress of science & technology from different angles, which are described respectively. For cold damage, at present, the delayed-type of cold damage mainly has six types, and this paper introduces only five types, with a brief description of the most common types of cold damage indexes. Frost effects on crops are not only associated with the intensity and duration of frost but also with different crop types. Therefore, frost indexes of different crops are not the same, and the indexes of frost are mostly given a specific criterion for different crops; Dry hot wind is the most serious impact on wheat in North China. This paper summarizes the indexes of dry-hot wind from the four meteorological, discriminant, hazard and defense aspects. These four types of meteorological disasters occur frequently in northern China, particularly causing severe impact on the local agricultural production. This paper summarizes the advantages and disadvantages of different indexes, and puts forward some problems and improvement direction of the disaster indexes. At the same time, we try to lay a foundation for the formation of the northern region index system of agro-meteorological disasters, and provide a foundation in disasters supervision and assessment as well as supply a reference for preventing and mitigating the disasters.

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