摘要
调查黑龙江省绥化市北林区13条主要道路绿化情况,分析道路绿化断面形式和绿化垂直结构,计算树种频度、绿地率、树种丰富度指数、Simpson指数、Shannon-Weiner指数、Pielou指数和绿化隔离度。结果表明:①道路绿化断面一板二带式共12条,占调查道路总数的92.31%,仅中直路为三板四带式,形式较为单一;②树种共9科13属17种,乔木中小叶杨相对频率最高,达31.99%,灌木中榆叶梅相对频度最高,达38.62%,康庄路绿地率最高,达到68.04%;③树种丰富度最高值是黄河路,为13,最低值是广安街,仅为4,Simpson指数和Shannon-Weiner指数最高值是黄河路,Pielou指数最高值是广顺街;④道路绿化垂直结构中“乔木+灌木”形式占比例最大,达到53.85%,仅广顺街是“乔木”形式;⑤中直路绿化隔离度为2.4,其余路段为0,隔离效果相对较差。
The greening conditions of 13 main roads in Beilin District,Suihua City,Heilongjiang Province,are investigated,the greening section forms and vertical structure of roads were analyzed,and the tree species frequency,green rate,tree species richness index,Simpson index,Shannon-Weiner index,Pielou index and greening isolation degree is calculated.The results show that:①There are a total of 12 road greening sections with one-board-two-belt type,accounting for 92.31%of the total number of roads surveyed.Only Zhongzhi road is three-board-four-belt type,and the form is relatively simple.②There are 9 families,13 genera and 17 species of tree species.Populus simonii had the highest relative frequency in arbors,reaching 31.99%,and the relative frequency of Amygdalus triloba is the highest in shrubs,reaching 38.62%.The green rate of Kangzhuang road is the highest,reaching 68.04%.③The tree species richness of Huanghe road is highest(13),and that of Guang'an street was lowest(4).The Simpson index and Shannon-Weiner index of Huanghe road reach the highest value,and the Pielou index of Guangshun street reaches the highest value.④In the vertical structure of road greening,the form of″Arbor+Shrub″accounts for the largest proportion,reaching 53.85%.Only Guangshun street is in the form of″Arbor″.⑤The greening isolation degree of Zhongzhi road is 2.4,and the other road is 0,so the isolation effect is relatively poor.
作者
赵淑娟
平飞
李亚兰
ZHAO Shujuan;PING Fei;LI Yalan(School of Agriculture and Water Conservancy Engineering,Suihua University,Suihua 152061,Heilongjiang,China)
出处
《江汉大学学报（自然科学版）》
2021年第4期78-85,共8页
Journal of Jianghan University：Natural Science Edition
基金
2018年黑龙江省基本科研业务经费项目(KYYWF10236180116)
2019年绥化市社会科学项目(SHSK2019003)。
关键词
道路绿化
多样性指数
频度
绿地率
绥化市北林区
road greening
diversity index
frequency
green rate
Beilin District of Suihua City
