Chinese Journal of Agrometeorology ›› 2013, Vol. 34 ›› Issue (02): 210-214.doi: 10.3969/j.issn.1000-6362.2013.02.013

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Impact of Cumulative Meteorological Disasters Days on Crop Yields in Counties of Western Chongqing Based on Panel Data Model

LIN Jia1，2，CHEN Huan1，2，Yang Yuanyan1，WANG Ruoyu1，2，TANG Yi3   

  1. 1Chongqing Meteorological Bureau，Chongqing 401147，China；2School of Atmospheric Science，Lanzhou University，Lanzhou210093；3Fuling Meteorological Bureau，Fuling 408000
  • Received:2012-07-07 Online:2013-04-20 Published:2013-04-16

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Abstract: The spatial characteristics of three meteorological disasters and their impacts on crop yield per unit in counties of western Chongqing was analyzed，by using the panel date model based on cumulative days of continuous rain，floods and hot weather from 11 meteorological stations from 2004 to 2010，and the data of crop sown area and yield from local statistical yearbook The results showed that there was a difference in cumulative days and its fluctuations for three meteorological disastersCrop yield would decrease by 0.036%，0.015% and 0.31% respectively if 1% increases of cumulative days Therefore，it was benefit to keep crop yield stable that taking countermeasures to continuous rain，floods and hot weather in Western Chongqing

Key words: Western Chongqing, Meteorological disasters, Spatial characteristic, Crop production, Panel date model