Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (2): 193-196.doi: 10.11924/j.issn.1000-6850.2014-2136

Special Issue: 农业气象

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Diurnal Characteristics of Soil Temperature and Its Response to Air Temperature inside Plastic Greenhouse in Spring in Fuzhou

Lin Ruikun, Yang Kaijia, Chen Yan, Ni Zhiqing   

  1. (Agricultural Meteorological Experiment Station of Fuzhou, Fuzhou 350014)
  • Received:2014-08-06 Revised:2014-08-06 Accepted:2014-09-16 Online:2015-03-19 Published:2015-03-19

Abstract: Based on the soil temperature data during the spring of 2014, the diurnal characteristics of soil temperature in spring and its response to air temperature were analyzed in this paper.The results showed that the diurnal variation of air and soil temperature was a sine curve in sunny days. 10cm soil temperature had the greatest amplitude; the deeper soil layers were, the smaller amplitudes and the more hysteretic phases would be. The diurnal variation of air temperature and the 10cm soil temperature were single peak curves in rainy days. The diurnal variation of soil temperature of each layer was mild except the 10cm soil temperature in rainy days. Whether sunny or rainy, the air temperature diurnal variation was more than that of the soil temperature of each layer. The diurnal variation of air temperature and the soil temperature of each layer in sunny days were more than that in rainy days.