华北农学报 ›› 1993, Vol. 8 ›› Issue (4): 26-30. doi: 10.3321/j.issn:1000-7091.1993.04.006

所属专题: 土壤肥料

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水分胁迫下土壤水蒸散模型研究

巫东堂1, 韩雄1, 焦晓燕1, 陈明昌1, 陈阳2   

  1. 1. 山西省农业科学院土壤肥料研究所, 太原 030031
    2. 山西经济管理学院, 太原 030006
  • 收稿日期:1993-03-10 出版日期:1993-12-28

Model of Soil Water Evapotranspiration in the Condition of Water Stress

Wu Dongtang1, Han Xong1, Jiao Xiaoyan1, Chen Mingchang1   

  1. Institute of Soil and Fertilizer, Shanxi Academy of Agricultural Sciences, TaiyuanChen Yang(Shanxi College of Economic Management, Taiyuan
  • Received:1993-03-10 Published:1993-12-28

摘要: 对水分胁迫下农田土壤水分蒸散模型进行了研究,在水分胁迫下实际蒸散量(ET)与潜在蒸散量(Etm)之间关系为:ET=K_W·ET_M,K_W与根层土壤有效水含量具有直线相关性。模型中考虑根系分布的影响,能明显提高模型精度。

关键词: 模型, 土壤水蒸散, 水分胁迫

Abstract: A model of soil water evapotranspiration in farmland under the condition of water stress has been established. In the condition of water stress, the relationship between actual evapotranspiration capacity (ET) and potential evapotranspiration capacity (ETm) is ET = Kw·ETm There is a linear correlation between Kw and the content of availabel water in root region. The accuracy of modelling can be improved by introducing the effect of root distribution into the model.

Key words: Model, Soil water evapotranspiration, Water stress

引用本文

巫东堂, 韩雄, 焦晓燕, 陈明昌, 陈阳. 水分胁迫下土壤水蒸散模型研究[J]. 华北农学报, 1993, 8(4): 26-30. doi: 10.3321/j.issn:1000-7091.1993.04.006.

Wu Dongtang, Han Xong, Jiao Xiaoyan, Chen Mingchang. Model of Soil Water Evapotranspiration in the Condition of Water Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(4): 26-30. doi: 10.3321/j.issn:1000-7091.1993.04.006.

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