Tree soils

one of them is soil developed from Quaternary red clay

one is from granite and purple soil

were studied by permeameter. There are major types of soil

which were severely eroded in southern China. By stuy the relations between time and total measures of water permeating into soil

between time and permeability velocity

between permeability velocity and total water measures of permeation were established. The relation equations for 10 experimental plots were made and the properties of permeability of each soil were discussed.