无锡市区园林乡土绿化树种资源的调查

Investigation on Landscape Tree Resources of Indigenous in Wuxi City

在无锡地区,对当地乡土绿化树从树木习性、层次和观赏性等3个方面进行调查、分析。结果表明:乡土绿化树种共105种,落叶树种59种,常绿树种46种,二者比例为1.3∶1。落叶树种乔木49种,灌木10种,二者比例为5∶1,其中观叶类树34种,观花类16种,观果类10种;常绿树种乔木25种,灌木21种,二者比例为1∶1,其中观叶类树32种,观花类7种,观果类7种。

Based on the native greening trees and introduction trees in Wuxi city,by the three aspects of the habits,the level and the ornamental quality were investigated.The results showed that over 105 tree species were local tree,of which 59 species were deciduous trees,46 species were evergreen trees,and the ratio of spices of deciduous to evergreen was 1.3∶1.Over 59 tree species were deciduous trees,of which 49 species were arbors,10 species shrubs,and the ratio of spices of shrub to arbor was 5∶1.There were 34 foliage species,16 flower specises,and 10 fruit species.Meanwhile over 46 species were evergreen tree,of which 25 species were arbors,21 species shrubs,and the ratio of spices of shrub to arbor was 1.1∶1.There were 32 species were foliage type,7 flower type,and 7 fruit type.