It is of great theoretical and practical significance to realize accurate measuring, calculating and forecasting of soil moisture content (drought) by adopting advanced sensor technique and space-time analysis method.

• 在节水技术中,采用先进的传感器技术与时空分析手段,实现墒情(旱情)的准确测量与预测预报是一个具有重大理论与实际应用意义的研究课题。