【摘要】 对作物耗水量的计算方法与应用情况及RS和GIS在区域作物耗水时空分布这一研究领域的应用作了详尽的阐述,并建议在今后作物耗水时空分布的进一步研究中,应对参数的空间分辨率以及遥感参数与模型参数的定量对应关系等方面加以改进,发展既有理论基础又便于应用的区域尺度多种作物组合的耗水量估算新模式。更多还原

【Abstract】 This paper expounded the calculation method of crop evapotranspiration and its application. The application of RS and GIS technology in research field of spatial and temporal distribution of regional crop evapotranspiration was also illustrated in the paper. The author proposed that the spatial differentiate of model parameters, quantitative corresponding relations between RS parameters and model parameters should be ameliorated, and new evapotranspiration estimating model for multi-crop on regional scale, which not only has theoretical basis, but also convenient to be applied, in the future research on spatial and temporal distribution of regional crop evapotranspiration.更多还原