Abstract: In 2005-2010, an investigation by the methods of static watching and net-catching was conducted on the dragonflies in the places nearby the water areas suitable for dragonfly growth in Jiangsu. The investigation was made in the spaces of 20 metres along the sampling lines, with the Odonata fauna and its diversity identified and calculated. A total of dragonfly 53 species were recorded, belonging to 35 genera and 11 families, among which, Palearctic-Oriental species were richer, owned 18 species and accounted for 33.96% of the total, while Palearctic species were comparatively poor, accounted for 9.43%. The diversity index was 3.108, evenness index was 0.782, and dominance index was 0.169. In Nanjing and Lianyungang, the richness, diversity, and evenness indices were the highest, and the dominance index was the lowest, possibly due to the habitats in the two areas having a higher diversity and more suitable for the dragonfly existence.

Key words: Pinus massoniana, Temperature, Precipitation, Relative humidity, Climate change