摘要
【目的】探明榆林市公园绿地植物群落的结构与配置水平,为榆林市及类似地区绿地植物群落的合理配置与节水型城市绿地建设提供参考。【方法】以陕北榆林市河滨公园、沙河公园和东沙生态公园绿地植物群落为研究对象,采用样方法调查划分为10块样地的公园绿地,分析其植物群落的总体特征、水平结构、垂直结构和季相特征。【结果】榆林公园绿地群落共有植物58种,分属31科53属;其中蔷薇科和菊科植物种类相对较多,分别为14种和11种,占总数的25%和19%,常绿树种与落叶树种的种植比例为3∶7;绿地植物群落"乔-小乔-灌-草"4层结构样地中,河滨公园河北杨群落、沙河公园刺槐群落、沙河公园桃树群落样地乔木种类较多、优势种突出;"乔-小乔-草"3层结构样地中,植物配置层次感强,绿地开阔;各类乔灌木结构所占比例依次为观花类乔、灌木植物(均为20%)>常绿乔木和其他落叶乔木(均为16%)>常色叶乔木(8%)>常色叶灌木、变色叶乔灌木、常绿灌木和其他落叶灌木(均为4%)。【结论】榆林绿地以半稳定群落结构为主,植物种类较为丰富,旱区地域特色凸显。
【Objective】The purpose of the study is to clarify the structure and configuration level of park greenbelt plant community in Yulin City and to provide a reference for rational configuration of greenbelt plant community in Yulin City and similar arid areas and greenbelt construction for water-saving city.【Method】Taking greenbelt plant community of Hebin Park,Shahe Park and Dongsha Ecological Park in Yulin City of Northern Shaanxi as research objects,the greenbelts are divided into ten sample plots via quadrat method,and the general characteristics,horizontal structure,vertical structure and seasonal characteristics of plant community are analyzed.【Result】The greenbelt plant community of Yulin includes58 species,belonging to 53 genera and 31 families.Rosaceae and Asteraceae are relative more,respectively14 and 11,accounting for 25%and 19%of the total species.The planting ratio of evergreen tree species and deciduous trees species is 3∶7.In four layer structure sampling plots of greenbelt plant community arbor-small arbor-shrub-herb,arbor species are more and dominant species are prominent in Populus hopeiensis Hu&Chow community in Hebin Park,Robinia pseudoacacia community in Shahe Park and Amygdalus persica community in Shahe Park plots.In three layer structure sampling plots of arbor-small arbor-herb,plant configuration layer is obvious and green space is broad.The proportion of different arbor and shrub structure follows flowering arbor and shrub plant(both of 20%)>evergreen arbor and other deciduous arbor(both of 16%)>constant color-leaf arbor(8%)>constant color-leaf shrub,discoloredleaf arbor and shrub,evergreen shrub and other deciduous shrub(each of 4%).【Conclusion】Yulin greenbelt is mainly composed of semi-stable community structure,plant species are relatively abundant and regional characteristics of arid area are prominent.
作者
白晓霞
郭志军
李沛
高娜莹
刘翠英
BAI Xiaoxia;GUO Zhijun;LI Pei;GAO Naying;LIU Cuiying(Yulin University,Yulin,Shaanxi 719000;Erdos Dayuan Coal Co.Ltd,Erdos,Inner Mongolia 010499,China)
出处
《贵州农业科学》
CAS
2021年第5期116-122,共7页
Guizhou Agricultural Sciences
基金
陕西省科技厅计划项目(2019JQ-904)
榆林市科技局科技计划项目(2018-cxy-2),(2019-88-2)
陕西省科技厅项目(2019TSLNY03-03)。
关键词
陕北旱区
人工绿地
植物群落
调查
陕西
arid area in Northern Shaanxi
greenbelt
plant community
investigation
Shaanxi
