青岛市城阳区悬铃木根系分布特征及与土壤相关性状的研究  

Study on Root Distribution Characteristics of Platanus and Related Traits of Soil in Chengyang District of Qingdao City

作　　者：刘炜[1] 周春玲[1] 张雪 杨成利[1] 唐特[1] 张世华 

机构地区：[1]青岛农业大学,山东青岛266109 [2]青岛市植物园,山东青岛266071 [3]青岛市艺林设计院有限公司,山东青岛266000

出　　处：《江西农业学报》2010年第5期44-47,共4页Acta Agriculturae Jiangxi

基　　金："十一五"国家科技支撑计划重点项目"人居环境适用的观赏植物评价及高功效绿化配置技术研究与示范"(2006BAD07B09)

摘　　要：采用土钻法研究了青岛市城阳区悬铃木在四种立地条件下根系空间分布特征,结果表明细根根系主要分布在10～60 cm的土层中。在水平方向上随着离悬铃木主干的距离越远根系分布也呈现递减趋势。立地条件对悬铃木的根系分布特征有明显的影响。在公园绿地条件下悬铃木根系长势最好,其次是绿带,再次是草坪砖,长势最差的是硬质铺装,说明道路铺装对行道树的生长产生了不利的影响。采用环刀法研究了四种立地条件的土壤容重,结果表明随着土层深度的增加土壤容重逐渐增大,说明土壤容重对根系产生一定的影响,其存在负相关性。The spatial distribution characteristics of the root system of Platanus L.under four site conditions were studied by using the method of soil auger.The results showed that the fine roots mainly distributed in the 10～60 cm soil layers,root distribution had a descending trend along with the increasing of the distance between fine roots and trunk of Platanus.There were significant differences in the root distribution characteristics among different sites.The root system of Platanus in the park grew best,followed by in greenbelt and lawn brick,and that in pavement grew worst,which suggested that pavement had unfavorable influence on the growth of street trees.Ring knife method was used to study soil bulk density,it was found that soil bulk density increased gradually along with the rise of the soil depth.This showed that soil bulk density could produce certain negative influence on the root distribution.

关 键 词：悬铃木 根长密度 生物量 分布特征 土壤容重 

分 类 号：Q949.751.6[生物学—植物学]