黑龙港涝洼地水文微循环特征与农作物水分利用效率的研究
A study on the characters of micro-hydrological cycle and water use efficiency of crops in the waterlogged lowland of Heilonggang Region
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摘要: 阐述了黑龙港涝洼地水文微循环特征，并通过最优识别方法求解水文地质逆问题，得到了地下水通过毛管上升补给土壤的水量；研讨了土壤水分通量法的优缺点及应用条件，并用该法成功地反算了冬小麦生育期内的灌溉水量和降雨补给土壤的水量，对该区农作物水分利用效率进行了研究。Abstract: The characters of miro-hydrological cycle in waterlogged lowland has systematicly explained in this paper.By using optimal identification method to solve the inverse problems of groundwater,the recharge quantity of soil water through capillary rising from groundwater was obtained.The application conditions and the advantages and disvantages of the soilwater flux method were reviewed.Then the quantity of irrigation and recharge quantity of soil water by precipitation was successfully obtained by using this method.Finally,the water use efficiency of crops in the waterlogged lowland was calculated.
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Key words:
- Hydrological cycle /
- Numerical simulation /
- Optimal identification /
- Water use efficiency
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