<正>专业市场促进产业集群的产生及良性发展，形成对集群产业升级的强有力支持。产业集群的需求与供给聚集效应能使专业市场产生明显的外部性，降低市场交易费用，增强其竞争力。笔者通过分析浙江南浔木地板产业集群竞争力，得出了木地板产业集群和专业市场的健康发展依赖于两者的互动发展的结论，并对两者互动发展的机制做出论证，提出了区域经济发展的可借鉴模式。

The identification of specimens of Odonata collected in Zijin Mountain of Nanjing from 2005 to 2007 was made. Thirty species were classified in to 2 suborders, 8 families and 24 genus, Eight species among them were recorded in Jiangsu province for the first time. The characteristics of the fauna showed that the percentage of cosmopolitan species was higher than that of Oriental species. However, the percentages of Palearctic species was the lowest.