中国农业气象 ›› 2012, Vol. 33 ›› Issue (04): 488-492.doi: 10.3969/j.issn.1000-6362.2012.04.003

• 论文 • 上一篇    下一篇

北方日光温室北墙和后坡热通量日变化的谐波特征

张昆,黎贞发,李天来   

  1. 1天津市宝坻区气象局,宝坻301800;2天津市气候中心,天津300074;3沈阳农业大学辽宁省设施园艺重点实验室,沈阳110866
  • 收稿日期:2012-02-05 出版日期:2012-11-20 发布日期:2013-02-26
  • 作者简介:张昆(1984-),天津人,硕士,助理工程师,研究方向为设施园艺与小气候。Email:zk2006viva@163.com
  • 基金资助:
    国家“863”基金项目(2006AA10Z222);公益性行业科研专项“设施农业气象灾害预警与防御关键技术研究”(GYHY201006028)

Harmonic Characteristics of Heat Flux Diurnal Variation of North Wall and Back Slope in Northern Solar Greenhouse

ZHANG Kun,LI Zhen fa,LI Tian lai   

  1. 1Baodi Meteorological Bureau, Baodi 301800,China;2Tianjin Climate Center, Tianjin 300074;3Shenyang Agricultural University,Key Laboratory of Protected Horticulture of Liaoning Province,Shenyang 110866
  • Received:2012-02-05 Online:2012-11-20 Published:2013-02-26

摘要: 为了确定日光温室北墙和后坡热通量日变化的谐波组成与相应周期,采用谐波分析法,以辽沈Ⅰ型日光温室为研究用温室,分别进行了有无作物条件下的试验。结果表明,无作物区日变化曲线由以π/72、π/36和π/24为周期的正弦曲线组成;作物区日变化曲线由以π/72、π/36为周期的正弦曲线组成,作物明显影响了日光温室北墙和后坡热通量日变化的谐波成分和相应周期。其中选定谐波所占比重均达到90%以上,说明日光温室北墙和后坡的热通量日变化可以用相应周期的谐波组合表达,并且可以利用谐波分析法进行日光温室热通量的日变化特征的研究。

关键词: 谐波分析法, 热通量, 北墙, 后坡, 日光温室

Abstract: To investigate harmonic component and corresponding period of heat flux diurnal variation on north wall and back slope in solar greenhouse, the experiment was conducted with Liaoshen GreenhouseⅠunder different conditions with crops and without crops by using Harmonic analysis method. The results showed that diurnal variation curve was composed of sinusoids by π/72, π/36 and π/24 cycles without crops, and by π/72 and π/36 cycles with crops. Crops affected harmonic component and corresponding period significantly. Moreover, investigated harmonic accounted for more than 90%, which indicated that heat flux diurnal variation on north wall and back slope could be expressed by harmonic component during corresponding period, and harmonic analysis could be used to research for heat flux diurnal variation in solar greenhouse.

Key words: Harmonic analysis method, Heat flux, North wall, Back slope, Solar greenhouse

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