The ratio between soil evaporation and crop evapotranspiration in each month and in the whole growing period of winter wheat are obtained from observed evolution of soil evaporation rate in the field.

 
  • 在農田水量平衡的各種計算模型中,總是用參照騰發(fā)量與作物系數的乘積計算作物總騰發(fā)量,而如何將土面蒸發(fā)與葉面蒸騰分開(kāi),一直是困擾著(zhù)人們的難題。
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