Laboratory experiments of soil nutrient transfer in the loess slope with surface runoff during simulated rainfall;

An example was presented to study the application of simulated rainfall and runoff scouring experiment in predicting newly increased soil and water loss.

With the simulated rainfall,the rainfall characteristics under canopy of the mainly tree species in loess area was studied applying the color-spot method.

By use of artificial precipitation equipment and a large soil tank with changeable slope,the process of non-point pollution in uncovered slopes was simulated under different initial soil nutrient contents,runoff,slopes and plant coverage ratios.

By means of artificial precipitation in laboratory,the process of nonpoint nitrate pollution in uncovered slopes was simulated under different rainfall intensities by use of a large soil tank with changeable slope.

This paper introduces a new method of monitoring runoff pollution of municipal ground by using simulator of artificial precipitation and provides a economical and handy tool for study- ing the law of runoff pollution of municipal groumd.

Study on soil infiltration law with artificial rainfalland numerical simulation;

Runoff-rainfall relationship for multilayer infiltration systems under artificial rainfalls;

Effects of farming soil treated with fly-ash on soil structure and erosion through artificial rainfall simulation;

Four typical land covers in Guanting Reservoir watershed were studied on nutrients loss in artificial rainstorm runoff simulator.

Five typical land covers in West Tiaoxi catchment were studied on phosphorous loss in artificial rainstorm runoff.

In order to improve the air quality,in a urban areawith multiple emission sources, setting up some green belts and artificial rainbelts is vcry helpful,besides the regular emission cont.