Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (19): 104-113.doi: 10.11924/j.issn.1000-6850.casb20190400005

Special Issue: 水稻 农业气象

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Meteorological Disasters at Long-term Scales: Influence on Rice Yield of Hunan

Tan Shiqi1, Fan Jiazhi2, Yan Shi2, Tao Xiaoxiao3, Ou Jinhui4, Luo Hongmei1   

  1. 1Hunan Meteorological Service Center, Changsha 410118
    2Hunan Branch of Meteorological Cadre Training College of China Meteorological Administration, Changsha 410125
    3Changji Meteorological Bureau, Changji Xinjiang 831100
    4Yongzhou Meteorological Bureau, Yongzhou Hunan 425000
  • Received:2019-04-18 Revised:2019-09-09 Online:2020-07-05 Published:2020-07-08

Abstract:

The paper aims to explore the spatial and temporal distribution of rice suffered from meteorological disasters during 1980-2015 of Hunan. Based on the meteorological data from 96 meteorological stations and data of rice planting area and yield from 1980 to 2015 in Hunan, we conducted spatial analysis on agro-meteorological disasters with ArcGIS and the correlation analysis between rice yield and meteorological elements with SPSS. The results showed that: the drought, heat damage and flood during 1980-2015 in Hunan were quite serious, and the cold-dew wind was less likely to happen; there was a negative correlation between SPEI and rice yield in each region, and the drought restricted the rice yield to some extent; there was a negative correlation between late-rice yield and extreme high-temperature; and there were significantly negative correlations between early rice per unit area yield and the maximum daily precipitation, the maximum continuous precipitation, and total precipitation from April to September at 0.05 levels, the flood disaster had obvious inhibition effect on early rice production. The results could provide guiding references for rational and scientific planning of rice production, and for avoiding agro-meteorological disasters.

Key words: meteorological, rice, drought, high temperature, flood, cold-dew wind

CLC Number: