| 1 | In Hongze sag of Subei basin, the salt rock is distributed extensively and stably. | |
| 2 | Aim at the characteristics that parts of oil wells of oil-field in Jiangsu locate the Hongze area floodway in the lake, which designed a kind of lake area oil extraction terrace. | |
| 3 | Based on the investigation to the reasons for shipwreck in Hongze Lake during the past decade, wind and waves are identified as the main factors. | |
| 4 | Frequent floods and droughts and serious water pollution are two major difficult problems of controlling the Huaihe River. | |
| 5 | The potential of the Neogene reservoir in Xuyi and Hongze area is small due to the thin formation thickness, while the bedrock reservoir is dominant. |