Five bacterial strains capable of utilizing phenol as sole carbon source for growth were isolated from non-contaminated natural soil sample after enrichment in the presence of phenol.

It studies the texture of erodibility of varies natural soil and non irrigated soil in Sichuan by applying K value of soil erodibility of USA Universal Soil Loss Equation (USLE) and soil erosion forecasting model (WEPP).

A discussion on natural sediment yield in the upper and middle Yangtze River;