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根据吴忠春小麦和民勤棉花的田间试验资料分析了不同土壤水分条件下作物冠层温度的变化规律,建立了作物冠层温度一气温差(T_c—T_a)与气象因素和土壤含水量之间的关系。研究了将(T_c—T_a)用于灌溉决策的可行性。结果表明根据(T_c—T_a)可较好地用于诊断作物的缺水状况。
According to field experiment data of Wuzhongchun wheat and Minqin cotton, the change law of crop canopy temperature under different soil moisture conditions was analyzed, and the relationship between crop canopy temperature and air temperature difference (T_c-T_a), meteorological factors and soil water content was established . The feasibility of using (T_c-T_a) for irrigation decision-making was studied. The results show that (T_c-T_a) can be better used to diagnose the water shortage of crops.