辽宁大连市主要公园乔木多样性分析

Analysis of the Diversity of Arbors in Major Parks of DaLian

对大连市7个主要公园的乔木种类和各树种的个体数量进行调查,利用树种数、Shannon-Wiener多样性指数、Simpson生态优势度指数、Pielou均匀度指数4个指标对大连市各公园的树种组成结构进行分析。结果表明:7个公园内有乔木树种共75种,隶属31科40属;Shannon-Wiener多样性指数的表现为:甘井子公园>星海公园>富民公园>明珠公园>劳动公园>中山公园>泽龙湖公园;Simpson生态优势度指数的表现为:甘井子公园>富民公园>星海公园>劳动公园>明珠公园>中山公园>泽龙湖公园;Pielou均匀度指数的表现为:星海公园>劳动公园>甘井子公园>富民公园>明珠公园>中山公园>泽龙湖公园。

The species of arbors and the number for each species in 7 parks in DaLin were investigated. The tree species composition was analyzed by means of four indexes of number of tree species, Simposon, Shannon-Wiener and Peilou species evenness. We draw a conclusion that there are 75 species subjected to 31 families and 40 genera in 7 parks. For Simposon index, the order（from the highest to the lowest） is Ganjingzi Park, Xinghai Park, Fumin Park, Mingzhu Park, Laodong Park, Zhongshan Park, Zelonghu Park. For the Shannon-Wiener index the order is Ganjingzi Park, Fumin Park, Xinghai Park, Laodong Park, Mingzhu Park, Zhongshan Park and Zelonghu Park. For Peilou species evenness index, the order is Xinghai Park, Laodong Park, Ganjingzi Park, Fumin Park, Mingzhu Park, Zhongshan Park and Zelonghu Park.