| 1 | The urban area of Chongqing proper includes the following districts: Yuzhong district , Nan'an district, Jiangbei district, Shapingba district, Jiulongpo district and Dadukou district . | |
| 2 | Yuzhong District, Jiangbei District, Yubei District, Shapingba District, Nanan District, Jiulongpo District, Dadukou District, Banan District, and Northern New Zone...... | |
| 3 | Therefore, the research of Dadukou District is of great significance to the development of compulsory education in Chongqing and the whole country. | |
| 4 | This study based on domestic and foreign researches of urban forestry, established a database of urban forestry resources of Dadukou District with GIS technology. |