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中国农学通报 ›› 2015, Vol. 31 ›› Issue (2): 193-196.doi: 10.11924/j.issn.1000-6850.2014-2136

所属专题: 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

福州春季塑料大棚内土壤温度日变化特征及其对棚内气温的响应

林瑞坤,杨开甲,陈 彦,倪智清   

  1. (福州农业气象试验站,福州 350014)
  • 收稿日期:2014-08-06 修回日期:2014-08-06 接受日期:2014-09-16 出版日期:2015-03-19 发布日期:2015-03-19
  • 通讯作者: 林瑞坤

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

摘要: 利用2014年春季在塑料大棚内不同深度的土壤温度数据,分析了各层土壤温度的日变化特征及其对气温的响应。结果表明:(1)晴天塑料大棚内气温和土壤温度均呈正弦曲线日变化。10 cm土壤温度日变化幅度最大,越往深层,土壤温度日变化幅度越小,位相越后,周期越长。(2)阴雨天塑料大棚内气温和10 cm土壤温度日变化呈单峰曲线,除10 cm土壤温度日变化幅度较大外,其余各层土壤温度日变化不明显。(3)不管晴天还是阴雨天,气温日变化幅度均大于土壤各层日变化幅度。晴天塑料大棚内气温及土壤温度的日振幅分别大于阴雨天对应的各层日振幅。

关键词: 土层置换, 土层置换, 土壤酶, 土壤养分

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.