棉花耗水量实时预报研究

棉花耗水量实时预报是棉田实时灌溉预报的关键，也是棉田土壤水分动态模拟的基础。根据理论探讨和对湖北省天门市棉花灌溉试验成果的模拟分析，提出了适合湖北省的参考作物需水量及棉花耗水量逐日预报数学模型。实例研究表明，提出的方法和模型理论上严密，实用上方便，预测精度能够满足要求。

Study on Real-time Forecast of Cotton Evapotranspiration

The real-time forecast of cotton evapotranspiration is a key procedure for irrigation scheduling, and is a foundation for dynamically simulating soil water component in the cotton fields. Based on the theoretical study and analyzing experimental data of Tianmen irrigation experimental station, the method and mathematical models for forecasting daily referential evapotranspiration and cotton evapotranspiration which are suitable for Hubei Province, are presented. The case study shows that the method and mathematical models presented are feasible, simple in use and higher in forecast accuracy.