Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (20): 160-165.doi: 10.11924/j.issn.1000-6850.casb15020041

Special Issue: 农业气象

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Grey Correlation Analysis of Influence of Meteorological Factors on Shallow Soil Moisture

Wu Yanjuan1, Lv Jinghua2   

  1. (1Inner Mongolia Meteorological Bureau, Hohhot 010051; 2Hohhot Meteorological Bureau, Hohhot 010020)
  • Received:2015-02-05 Revised:2015-07-01 Accepted:2015-05-19 Online:2015-07-28 Published:2015-07-28

Abstract: Based on the continuous observation data from April to September in 2012 of Tumotezuoqi Meteorology Station, the author discussed the influence of meteorological factors on shallow soil moisture with grey correlation analysis. The results showed that, under rainfall weather condition, the order was daily average wind speed>daily average relative humidity>daily average air temperature>daily average ground temperature, and under no rainfall weather condition, the order was daily average relative humidity>daily average wind speed>daily average air temperature>daily average ground temperature. The research showed that one meteorological factor might have different impacts on soil moisture of the same layer under different weather conditions. In order to understand the change of soil moisture and make full use of water resource in soil, detailed research on major influencing factors and their influencing degree should be conducted according to different weather conditions.