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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (15): 357-360.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

典型草原区生长季湍流通量特征分析

史激光   

  • 收稿日期:2010-03-01 修回日期:2010-04-25 出版日期:2010-08-05 发布日期:2010-08-05
  • 基金资助:

    近地层通量变化特征分析及初级产品加工技术

Typical steppe characteristics of turbulent fluxes during the growing season

  • Received:2010-03-01 Revised:2010-04-25 Online:2010-08-05 Published:2010-08-05

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摘要：

根据锡林浩特国家气候观象台2007—2009年生长季（5月至9月）湍流通量监测资料，对该地区不同天气状况下湍流通量进行了分析，结果表明：CO2通量、动量通量、潜热、显热通量存在明显的日变化规律，变化范围分别在-0.0647~0.0344 mg/(m2?s)、0.058~0.207 kg/(m?s2）、0.69~95.39 W/m2、-31.35~287.2 W/m2之间。给出了湍流传输系数Cm=Ch=Cw=6.8×10－3 。

关键词: 土壤前处理, 土壤前处理, KCl浓度, 液土比, NO3-N, NH4-N

Abstract:

According to the National Climate Observatory xilinhaote 2007 to 2009 growing season (from may to September) turbulent flux monitoring data, the area under different weather conditions, the turbulent flux is analyzed, results showed that: CO2 flux, momentum flux, latent heat, sensible heat flux obvious diurnal variation, changes were in the range -0.0647~0.0344mg/m2.s, 0.058~0.207 kg/(m?s2), 0.69~95.39 W/m2, -31.35~287.2 W/m2 between. Turbulent transport coefficient is given Cm=Ch=Cw=6.8×10-3.