微气象学方法测定草地植被蒸散量具有方便简单,精度高的优点。还可用于预测预报,因此具有广泛的应用前景。本文主要介绍了目前国外广泛采用且精度较高的3种微气象学方法,即能量平衡法、彭曼法和蒙蒂斯—彭曼法,特别是各法中参数的确定方法。以期使该法能在我国草地生态系统的研究中得到应用和发展。 Micrometeorological method for determining vegetation evapotranspiration has the advantages of convenience and high precision. It can also be used for forecasting and forecasting, so it has a wide range of application prospects. This paper mainly introduces three kinds of micro-meteorological methods which are widely used abroad and have higher accuracy, namely the energy balance method, the Penman method and the Montis-Penman method, especially the method for determining the parameters in each method. With a view to making the law be applied and developed in the research of grassland ecosystem in our country.