山西大同城区观赏地被植物应用调查与评价分析

Investigation and Evaluation of Ornamental Groundcover Plants in Urban Areas of Datong, Shanxi Province

为合理开发利用观赏地被植物资源,采用实地调查结合层次分析法(AHP)对山西大同城区主、次干道及典型居住区园林绿地现有地被植物进行了全面系统的调查分析。结果表明,调查绿地中共有观赏地被植物36种,隶属16科31属,其中,喜阳、耐旱和耐寒的观赏地被种类较多,分别占总种数的69.4%,47.2%和63.9%;生活型以多年生草本为主,共有29种,占该区地被植物总种数的80.6%;相比其他科属,菊科含种数最多,单科包含11属11种,而单种科亦有10科,占总科数的62.5%。同时,基于AHP层次分析法和K-Means聚类分析法,调查绿地共筛选出Ⅰ级、Ⅱ级地被植物17种,这些地被资源均表现出较好的观赏特征,可为今后大同地区生态城市建设提供参考。

To reasonably utilize the ornamental groundcover plants,field investigation combined with analytic hierarchy process(AHP)was comprehensively used for analysis and evaluation of ornamental groundcover plants in greenland of main and secondary roads and typical residences of Datong,Shanxi province.The results showed that 36 ornamental groundcover plants were found,belonging to 16 families and 31 genera.Among them,69.4%,47.2%and 63.9%of the total ornamental groundcover plants were heliophiles,drought-enduring plants and hardy plants,respectively.Perennial herbs were the dominant vegetation form in this study,comprising 29 species and accounting for 80.6%of the total species.Compared with other families,Compositae contained the most species,including 11 genera and 11 species in single family,and there were 10 families with only one species,accounting for 62.5%of the total families.Meanwhile,17 species of groundcover plants(GradeⅠand GradeⅡ)were selected from the greenland based on AHP and K-Means clustering analysis.These resources all showed good ornamental characteristics,which could provide references for future ecological city construction in Datong.