吉林市城市自然草本植物种类及其多样性的研究

本文通过调查,对吉林市市区内自然草本植物种类及其多样性进行了研究,结果表明在研究区域内,草本植物种类有80种,分属32个科,63个属,其中菊科植物最多,其次为禾本科、蓼科等。根据物种的重要值计算结果发现优势度最大的为灰绿藜,其次为车前、藜、稗草等。利用多个多样性指标统计科、属、种多样性指数,结果为Shannon指数依次为1.0670、1.4214和1.5645,均匀度指数分别为0.3079、0.3431和0.3570,优势度指数分别为0.1238、0.0629和0.0424。  

The Species and Diversity of Urban Natural Herb Plants in Jilin City

The species and diversity of urban natural herb plants in Jilin city were investigated and studied in this paper. The result showed that there were 80 species of herb plants, with 32 families and 63 genera. The species of composite plant was the most more than the other families, and the gramineous species was the second one, then the polygonaceae species etc. According to the species importance value, the dominance of Chenopodium Glaucum was the first largest, the second to Plantsgo asiatica, Chenopodium Album and Echino chloa frumentacea etc. The diversity indexes on family, genus and species were calculated, and the Shannon-Wiener indexes were orderly 1.0670, 1.4214 and 1.5645, the evenness indexes were 0.3079, 0.3431 and 0.3570, and the dominant indexes were 0.1238-0.0629 and 0.0424 in turn.