土壤含水率是灌区干旱监测的重要指标。选择经济易得的遥感数据对灌区的土壤含水率进行定量监测，是非常具有实用价值的研究。采用地面光谱采样与土壤采样同步进行的方法，对漳河干渠最重要渠道——三干渠灌溉范围内的土壤水分状况进行了遥感定量分析，最终根据准同步遥感影像获得灌区表层土壤含水率分布图。

Soil moisture is a key index for the dry monitoring of an irrigation district. Nowadays, it is very practical and economical to choose remote sensing data as the data source to monitor the soil moisture in the irrigation district. In this paper, an synchronous approach combining ground spectrum sampling data and soil sampling data is proposed, which was used for monitoring the soil moisture of the Zhanghe Irrigation District, and the data obtained from this method were? analyzed quantitatively. At the end, a distributing chart presenting? surface soil moisture in this irrigation district is obtained according to the synchronous remote sensing images.