A discussion on the hydrologic computation method for the highway bridge across the irrigation canal;

A mathematical model of flow and sediment transport in irrigation canals of the Lower Yellow River;

In both well irrigation and channel irrigation, the total content of salts and content of ions were all higher in old rice plot than in new rice plot.

The development of defensive measures and the progress of defensive abilities reflect in four aspects: defensive measures of "making the best use of land",grain reserves of fair deal for famine,defensive project against disaster such as canalizing and irrigating,and defensive measures against flood such as damming and planting.

Analysis of the water-saving benefit by well-channel irrigation in the Yellow River irrigation district in Ningxia;

The Intelligent water level meter by the buoy is designed to meet the need of water discharge auto-measurement at the outlet of irrigation channel of the Yellow River.

A large number of earth canals in the countryside attract Chinese central authorities and local governments great attention for its agricultural development.