摘要
通过对麦田水分微循环规律的研究，提出了描述降水（灌水）入渗、地下潜水蒸发（或补给）、根区土壤水分传输、根系吸水和蒸发蒸腾等五个子系统的麦田“五水”（大气水、地面水、地下水、土壤水和植物水）转化动力学模式。论述了模型参数的测取方法。经大田初步试验表明，该模型对于模拟麦田水分动态和“五水”转化关系具有较高的精度。
Based on the research of the laws of water micro-circle processes in win -ter wheat field,the dynamic model of“five kinds of water”(air water, surface water,groundwater,soilwater andplant water)interrelation has been presentedin this pa-per,which includes five sub-systems of precipitation and irrigation water infiltration,ground water evaporation,soil water movement in the root zone,water uptake by roots and crop evapotranspiration,Also the methods of the model parameter taking and mea- surement have been discussed.The result of the field application has shown that the model has a high precision in simulating the water dynamic state and “five kinds of wa-ter” interrelation in winter wheat field.
出处
《西北农业大学学报》
CSCD
1995年第2期1-9,共9页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
基金
霍英东基金
水利水电科学基金
关键词
土壤水分
水分微循环
蒸发蒸腾
动力学
模型
soil water,water micro-circle,evapotranspiration,ground water evap-oration, water uptake,wheat field,dynamic model
