With the intensification of the global shortage of water resources and drought

utilization of rain water has become a worldwide issue.In order to make a better study of the collection and utilization of rainfall so as to achieve the spatial and temporal redistribution of precipitation

the experiment adopted the method of fixed point observation and observed the outcomes by different surface processing techniques.It was found that the relation of the amount of collected rainfall to rainfall intensity was a power relationship

namely

the more the rainfall

the more the amount of collected rainfall was;and the greater the intensity of rainfall

the more the amount of collected rainfall was.The cement hardened area had a higher rate of collected rainfall with nearly zero content of silt

while the rate of collected rainfall on grassland was very low with a higher level of sediment.In fitting the curve of the relationship between the amount of collected rainfall and rainfall intensity like

it was found that with the increase in the ratio of the cement hardened area to the area of grassland

collection coefficient

increased

but rainfall index

and rainfall intensity index

decreased.In comparison of the effectiveness of the terrace crops that have or do not have irrigation measures

it is concluded that we should guide farmers to readjust industrial structure and plant economic crops for a higher economic efficiency.