该文主要研究利用遥感技术资料，基于GIS技术，通过作物缺水指数模型监测旱情的方法。
A method to monitor drought using crop water stress index which is based on GIS technology combined with remote sensing data, graph and meteorological data was presented.
以改进的热惯量法、作物缺水指数法和植被指数法等为主要代表的土壤水分遥感监测方法日臻成熟。
The results showed that the methods on soil moisture monitoring by remote sensing, which are mainly stood for by improved thermal inertia, CWSI and vegetation index, are becoming mature.
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