福州市江滨公园绿地木本植物色彩丰富度及多样性研究

采用典型抽样法,对福州市江滨公园绿地木本植物的种类构成、植物来源、色彩丰富度、物种多样性指数进行调查统计和分析,以期为福州市生物多样性保护提供基础数据,为福州生态城市建设提供科学依据.研究表明:福州市江滨公园绿地木本植物种类较为丰富,共120种,隶属于50科83属,其中,福州本地种26种,占总数的21.67%;国内引进种55种,占总数的45.83%;国外引进种39种,占总数的32.50%;彩叶树种19种,占总数的15.83%.频度指数较高的为秋枫(Bischofia javanica)、四季桂(Osmanthus fragrans)和红花檵木(Loropetalum chinense).福州市江滨公园5个园区绿地的乔木物种丰富度大于灌木.Simpson多样性指数和Shannon-Wiener多样性指数表现为相同趋势,且乔木的多样性指数大于灌木.Pielou均匀度在江滨公园5个园区的绿地之间差异较大,乔木均匀度仍大于灌木.

Study on species and color diversity of woody plants in riverside parks of Fuzhou city

In order to know the situation of plant and color diversity of riverside parks in Fuzhou city ,the woody plants of different riverside parks in Fuzhou city were studied in this paper .The typical sampling method was used in this survey .Then the composition of plant community ,the origination of plants ,the color diversity of plants and the species diversity index were analyzed .The results showed that there were 50 families ,83 genera and 120 species .Among them ,26 species were local plants ,which account for 21 .67% .55 species were introduced from other regions of China ,which account for 45 .83% .39 species were introduced from foreign countries ,which account for 32 .50% .19 species were colored‐leaf trees , w hich account for 15 .83% . Bischo f ia j av anica , Osmanthus f ragrans , and Loropetalum chinense have higher frequency indexes .The abundance index of the tree layer was higher than the shrub layer .The Simpson index and the Shannon‐Wiener index showed similar trends ,but the Simpson index of the tree layer was higher than shrub layer .The Pielous index of different riverside parks has a large difference .