Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (23): 83-88.doi: 10.11924/j.issn.1000-6850.casb16100095

Special Issue: 现代农业发展与乡村振兴 农业气象

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Agro-meteorological Disasters in Anhui: Temporal Distribution Characteristics and Grey Correlation Analysis

  

  • Received:2016-10-24 Revised:2017-07-17 Accepted:2016-11-23 Online:2017-08-21 Published:2017-08-21

Abstract: The paper aims to explore the distribution characteristics of agro-meteorological disasters in Anhui and their impact on grain yield. Based on the disaster-affected areas of 4 agro-meteorological disasters including drought, flood, wind-hail and frost, combining with grain yield data from 1971 to 2012, the temporal distribution of these disasters was analyzed in this paper, as well as the correlation relation between disaster-affected area and average grain yield. The results showed that agro-meteorological disasters occurred frequently and fluctuated greatly, presenting a declining trend. Drought and flood were the main agro-meteorological disasters, and they often coexist in same time and space. Gray correlation analysis indicated that the impact of agro-meteorological disasters on average grain yield appeared in the order of wind-hail>flood>drought>frost in Anhui, which revealed wind-hail was the major agro-meteorological disaster during grain production, followed by flood, drought and frost. The results can provide decision-making basis for prevention of natural disasters in the future.

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