Developing rainwater-harvesting and water-saving irrigation to deepen water conservancy for enriching farmers--enlightenment from investigating the rainwater-harvesting projects in Gansu Province;

This paper analyzes the present situation of water resource and the features of agricultural production of Datong City, and expounds the importance and feasibility of developing rainwater-collecting irrigation project.

Yield and water use efficiency of wheat/corn compound colony under supplementary irrigation with catchment rainfall;

Studies on yield and physiological effect of grain and forage corn under supplementary irrigation with catchment rainfall;

Effect of rainwater harvesting for micro-irrigation on yield filling and water use efficiency of spring wheat;

Aiming at offering scientifically reasonable basis for the development of water-harvesting irrigation agriculture ,studies on water- harvesting and water infiltration were conducted in accordance with the remaining problems in water-harvesting irrigation .

According to the author s investigating and experiments,this paper puts forward the possibility of water-harvesting irrigation in mountainous orchard,which will pro- vide an effective new path to ensure stable yields despite drought or excessive rain for mountainous orchar