农田蒸散估算方法研究进展

Study of the estimating methods for evapotranspiration in farmland

对目前国内外估算农田蒸散的主要理论和方法 ,包括空气动力学法、波文比 -能量平衡法、空气动力与热量平衡联立法、经验公式法和遥感方法进行了总结 ,探讨了其使用中存在的问题 ,预测了农田蒸散在估算研究方面的发展趋势。参 2 2。

This paper summarized the main theories and methods in the estimating of field evapotranspiration,i e aerodynamic method,EBBR energy balance,aerodynamic EBBR energy balance,experience formulas and remote sensing method The shortcomings in the application of these theories and methods were discussed;furthermore,the future trends on estimating evapotranspiration study in farmland were forecasted