| 1 | Hubei province, Honghu city: A fisherman tries to paddle his boat through a small stream amid the partially dried-up fishery in the Honghu lake, Hubei province. | |
| 2 | Through the typical investigation in Honghu City, the cause of forming non-point source pollution was analyzed. | |
| 3 | At the basis of DEA evaluation, the thesis analysis of the effectiveness of outputs and inputs of Tianmen city, Songzi city and Honghu city. |